diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
index c2cdaaef..afcb7044 100644
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -1,2 +1,6 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 ---
 patreon: cyanvoxel
diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml
index a719991f..35ad9dc6 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 ---
 name: Bug Report
 description: File a bug or issue report.
diff --git a/.github/ISSUE_TEMPLATE/feature_request.yml b/.github/ISSUE_TEMPLATE/feature_request.yml
index 32259fb6..7f8c726a 100644
--- a/.github/ISSUE_TEMPLATE/feature_request.yml
+++ b/.github/ISSUE_TEMPLATE/feature_request.yml
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 ---
 name: Feature Request
 description: Suggest a new feature.
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 9b1d9606..a012fd35 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,3 +1,5 @@
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 ### Summary
 
 <!--
diff --git a/.github/workflows/mypy.yaml b/.github/workflows/mypy.yaml
index df695692..892eb43d 100644
--- a/.github/workflows/mypy.yaml
+++ b/.github/workflows/mypy.yaml
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 ---
 name: MyPy
 
diff --git a/.github/workflows/publish_docs.yaml b/.github/workflows/publish_docs.yaml
index 4bda2b75..66bba50e 100644
--- a/.github/workflows/publish_docs.yaml
+++ b/.github/workflows/publish_docs.yaml
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 ---
 name: Publish Docs
 
diff --git a/.github/workflows/pytest.yaml b/.github/workflows/pytest.yaml
index acd85ce8..24d97d25 100644
--- a/.github/workflows/pytest.yaml
+++ b/.github/workflows/pytest.yaml
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 ---
 name: pytest
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8a1c6c19..145cca37 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 ---
 name: Release
 
diff --git a/.github/workflows/reuse.yaml b/.github/workflows/reuse.yaml
new file mode 100644
index 00000000..4a39733f
--- /dev/null
+++ b/.github/workflows/reuse.yaml
@@ -0,0 +1,12 @@
+# SPDX-FileCopyrightText: 2020 Free Software Foundation Europe e.V.
+# SPDX-License-Identifier: CC0-1.0
+name: REUSE compliance check
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      - name: REUSE Compliance Check
+        uses: fsfe/reuse-action@v6
diff --git a/.github/workflows/ruff.yaml b/.github/workflows/ruff.yaml
index 2fc85b7c..92550f08 100644
--- a/.github/workflows/ruff.yaml
+++ b/.github/workflows/ruff.yaml
@@ -1,3 +1,5 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 ---
 name: Ruff
 
diff --git a/LICENSES/Apache-2.0.txt b/LICENSES/Apache-2.0.txt
new file mode 100644
index 00000000..d6456956
--- /dev/null
+++ b/LICENSES/Apache-2.0.txt
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
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diff --git a/LICENSES/CC-BY-SA-4.0.txt b/LICENSES/CC-BY-SA-4.0.txt
new file mode 100644
index 00000000..2d58298e
--- /dev/null
+++ b/LICENSES/CC-BY-SA-4.0.txt
@@ -0,0 +1,428 @@
+Attribution-ShareAlike 4.0 International
+
+=======================================================================
+
+Creative Commons Corporation ("Creative Commons") is not a law firm and
+does not provide legal services or legal advice. Distribution of
+Creative Commons public licenses does not create a lawyer-client or
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+Section 1 -- Definitions.
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+  a. Adapted Material means material subject to Copyright and Similar
+     Rights that is derived from or based upon the Licensed Material
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+       2. Exceptions and Limitations. For the avoidance of doubt, where
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+          License does not apply, and You do not need to comply with
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+
+Section 3 -- License Conditions.
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+following conditions.
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+          form), You must:
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+
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new file mode 100644
index 00000000..0e259d42
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diff --git a/LICENSES/GPL-3.0-only.txt b/LICENSES/GPL-3.0-only.txt
new file mode 100644
index 00000000..d04d2e74
--- /dev/null
+++ b/LICENSES/GPL-3.0-only.txt
@@ -0,0 +1,675 @@
+GNU GENERAL PUBLIC LICENSE
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+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
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+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
+
diff --git a/LICENSES/GPL-3.0-or-later.txt b/LICENSES/GPL-3.0-or-later.txt
new file mode 120000
index 00000000..9928c006
--- /dev/null
+++ b/LICENSES/GPL-3.0-or-later.txt
@@ -0,0 +1 @@
+GPL-3.0-only.txt
\ No newline at end of file
diff --git a/LICENSES/MIT.txt b/LICENSES/MIT.txt
new file mode 100644
index 00000000..fe36007e
--- /dev/null
+++ b/LICENSES/MIT.txt
@@ -0,0 +1,19 @@
+Copyright © <year> <copyright holders>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
diff --git a/LICENSES/OFL-1.1.txt b/LICENSES/OFL-1.1.txt
new file mode 100644
index 00000000..40bd8a65
--- /dev/null
+++ b/LICENSES/OFL-1.1.txt
@@ -0,0 +1,97 @@
+Copyright (c) <dates>, <Copyright Holder> (<URL|email>),
+with Reserved Font Name <Reserved Font Name>.
+Copyright (c) <dates>, <additional Copyright Holder> (<URL|email>),
+with Reserved Font Name <additional Reserved Font Name>.
+Copyright (c) <dates>, <additional Copyright Holder> (<URL|email>).
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+https://openfontlicense.org
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
diff --git a/README.md b/README.md
index 852d91fe..d7ef63fc 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 # TagStudio: A User-Focused Photo & File Management System
 
 [![Downloads](https://img.shields.io/github/downloads/TagStudioDev/TagStudio/total.svg?maxAge=2592001)](https://github.com/TagStudioDev/TagStudio/releases)
diff --git a/REUSE.toml b/REUSE.toml
new file mode 100644
index 00000000..e4d032d7
--- /dev/null
+++ b/REUSE.toml
@@ -0,0 +1,46 @@
+version = 1
+
+[[annotations]]
+path = [
+    "tests/fixtures/**",
+
+    "contrib/.envrc-nix",
+    "contrib/.envrc-uv",
+    "contrib/.vscode/launch.json",
+    "docs/CNAME",
+    "docs/assets/**",
+    "src/tagstudio/qt/resources.json",
+    "src/tagstudio/resources/icon.*",
+    "src/tagstudio/resources/tagstudio.desktop",
+    "src/tagstudio/resources/templates/ts_ignore_template.txt",
+    "src/tagstudio/resources/templates/ts_ignore_template_blank.txt",
+    "src/tagstudio/resources/qt/images/**",
+    "tests/qt/__snapshots__/test_folders_to_tags.ambr",
+
+    ".git-blame-ignore-revs",
+    ".gitattributes",
+    ".gitignore",
+    ".pre-commit-config.yaml",
+    "flake.lock",
+]
+SPDX-FileCopyrightText = "(c) TagStudio Contributors"
+SPDX-License-Identifier = "GPL-3.0-only"
+
+[[annotations]]
+path = ["src/tagstudio/resources/translations/*.json"]
+SPDX-FileCopyrightText = "(c) TagStudio Contributors"
+SPDX-License-Identifier = "GPL-3.0-or-later"
+
+[[annotations]]
+path = [
+    "src/tagstudio/resources/qt/images/bxs-left-arrow.png",
+    "src/tagstudio/resources/qt/images/bxs-right-arrow.png",
+    "src/tagstudio/resources/qt/images/file_icons/database.png",
+]
+SPDX-FileCopyrightText = "(c) 2026 Boxicons"
+SPDX-License-Identifier = "MIT"
+
+[[annotations]]
+path = ["src/tagstudio/resources/qt/images/volume.svg", "src/tagstudio/resources/qt/images/volume_mute.svg"]
+SPDX-FileCopyrightText = "(c) github:google/material-design-icons Contributors"
+SPDX-License-Identifier = "Apache-2.0"
diff --git a/docs/changelog.md b/docs/changelog.md
index a3c6474a..2f1426aa 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -3,6 +3,8 @@ title: Changelog
 icon: material/script-text
 toc_depth: 2
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-script-text: Changelog
 
diff --git a/docs/colors.md b/docs/colors.md
index 8563388f..945f3434 100644
--- a/docs/colors.md
+++ b/docs/colors.md
@@ -1,6 +1,8 @@
 ---
 icon: material/palette
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-palette: Colors
 
diff --git a/docs/contributing.md b/docs/contributing.md
index 449f73f8..0aa2e18d 100644
--- a/docs/contributing.md
+++ b/docs/contributing.md
@@ -1,6 +1,8 @@
 ---
 icon: material/file-plus
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-file-plus: Contributing
 
diff --git a/docs/developing.md b/docs/developing.md
index dc49ee23..c177fb3b 100644
--- a/docs/developing.md
+++ b/docs/developing.md
@@ -1,6 +1,8 @@
 ---
 icon: material/code-braces
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-code-braces: Developing
 
diff --git a/docs/entries.md b/docs/entries.md
index 6a1a9fbc..efd88129 100644
--- a/docs/entries.md
+++ b/docs/entries.md
@@ -1,6 +1,8 @@
 ---
 icon: material/file
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-file: Entries
 
diff --git a/docs/fields.md b/docs/fields.md
index afcf057e..deec08ac 100644
--- a/docs/fields.md
+++ b/docs/fields.md
@@ -1,6 +1,8 @@
 ---
 icon: material/text-box
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-text-box: Fields
 
diff --git a/docs/help/ffmpeg.md b/docs/help/ffmpeg.md
index 80746c6f..c526bc02 100644
--- a/docs/help/ffmpeg.md
+++ b/docs/help/ffmpeg.md
@@ -1,6 +1,8 @@
 ---
 icon: material/movie-open-cog
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-movie-open-cog: Installing FFmpeg
 
diff --git a/docs/ignore.md b/docs/ignore.md
index 0e7687d0..f3c07768 100644
--- a/docs/ignore.md
+++ b/docs/ignore.md
@@ -2,6 +2,8 @@
 title: Ignoring Files
 icon: material/file-document-remove
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-file-document-remove: Ignoring Files & Directories
 
diff --git a/docs/index.md b/docs/index.md
index 62dfc1ed..51365001 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -4,6 +4,8 @@ hide:
     - toc
     - navigation
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 #
 
diff --git a/docs/install.md b/docs/install.md
index bec72c2b..51134e25 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -1,6 +1,8 @@
 ---
 icon: material/download
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-download: Installation
 
diff --git a/docs/libraries.md b/docs/libraries.md
index 0afeb6ef..4b0515e5 100644
--- a/docs/libraries.md
+++ b/docs/libraries.md
@@ -1,6 +1,8 @@
 ---
 icon: material/database
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-database: Libraries
 
diff --git a/docs/library-changes.md b/docs/library-changes.md
index 3ae570aa..cbd3594d 100644
--- a/docs/library-changes.md
+++ b/docs/library-changes.md
@@ -1,6 +1,8 @@
 ---
 icon: material/database-edit
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-database-edit: Library Format
 
diff --git a/docs/macros.md b/docs/macros.md
index 9268d267..232bb4b6 100644
--- a/docs/macros.md
+++ b/docs/macros.md
@@ -1,6 +1,8 @@
 ---
 icon: material/script-text
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-script-text: Tools & Macros
 
diff --git a/docs/preview-support.md b/docs/preview-support.md
index 7f1edd54..c1070ed7 100644
--- a/docs/preview-support.md
+++ b/docs/preview-support.md
@@ -1,6 +1,8 @@
 ---
 icon: material/image-check
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-image-check: Supported Previews
 
diff --git a/docs/roadmap.md b/docs/roadmap.md
index f1417393..b0f6c48e 100644
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -1,6 +1,8 @@
 ---
 icon: material/map-check
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-map-check: Roadmap
 
diff --git a/docs/search.md b/docs/search.md
index 6d2007ed..bb6a5915 100644
--- a/docs/search.md
+++ b/docs/search.md
@@ -1,6 +1,8 @@
 ---
 icon: material/magnify
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-magnify: Searching
 
diff --git a/docs/style.md b/docs/style.md
index 35b8841c..2763f642 100644
--- a/docs/style.md
+++ b/docs/style.md
@@ -1,6 +1,8 @@
 ---
 icon: material/sign-text
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-sign-text: Style Guide
 
diff --git a/docs/stylesheets/extra.css b/docs/stylesheets/extra.css
index f1e72d90..5ae0f7eb 100644
--- a/docs/stylesheets/extra.css
+++ b/docs/stylesheets/extra.css
@@ -1,3 +1,7 @@
+/*
+ * SPDX-FileCopyrightText: (c) TagStudio Contributors
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
 /* Dark Theme */
 [data-md-color-scheme="slate"] {
     --md-default-bg-color: #060617;
diff --git a/docs/stylesheets/home.css b/docs/stylesheets/home.css
index 26e9c2d1..a32f0a80 100644
--- a/docs/stylesheets/home.css
+++ b/docs/stylesheets/home.css
@@ -1,3 +1,7 @@
+/*
+ * SPDX-FileCopyrightText: (c) TagStudio Contributors
+ * SPDX-License-Identifier: GPL-3.0-only
+ * */
 h2 {
     margin: 1rem 0 0 0 !important;
 }
diff --git a/docs/tags.md b/docs/tags.md
index b8cb65e1..525b615e 100644
--- a/docs/tags.md
+++ b/docs/tags.md
@@ -1,6 +1,8 @@
 ---
 icon: material/tag-text
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-tag-text: Tags
 
diff --git a/docs/usage.md b/docs/usage.md
index aa083e8c..a533f2cd 100644
--- a/docs/usage.md
+++ b/docs/usage.md
@@ -1,6 +1,8 @@
 ---
 icon: material/mouse
 ---
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 
 # :material-mouse: Basic Usage
 
diff --git a/flake.nix b/flake.nix
index c12b22b6..ffde5e2e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 {
   description = "TagStudio";
 
diff --git a/mkdocs.yml b/mkdocs.yml
index aaf4b106..2a03b9ec 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 # yaml-language-server: $schema=https://squidfunk.github.io/mkdocs-material/schema.json
 
 # MkDocs: https://www.mkdocs.org/
diff --git a/nix/package/default.nix b/nix/package/default.nix
index 3aa69219..b609e5f9 100644
--- a/nix/package/default.nix
+++ b/nix/package/default.nix
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 {
   ffmpeg-headless,
   lib,
diff --git a/nix/package/pillow-jxl-plugin.nix b/nix/package/pillow-jxl-plugin.nix
index 4df28aed..4b8ecba5 100644
--- a/nix/package/pillow-jxl-plugin.nix
+++ b/nix/package/pillow-jxl-plugin.nix
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 {
   buildPythonPackage,
   cmake,
diff --git a/nix/package/pyexiv2.nix b/nix/package/pyexiv2.nix
index 4761db49..a9cb9c41 100644
--- a/nix/package/pyexiv2.nix
+++ b/nix/package/pyexiv2.nix
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 {
   autoPatchelfHook,
   buildPythonPackage,
diff --git a/nix/shell.nix b/nix/shell.nix
index 81965fc8..797f1fc6 100644
--- a/nix/shell.nix
+++ b/nix/shell.nix
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 {
   lib,
   pkgs,
diff --git a/overrides/partials/header.html b/overrides/partials/header.html
index 0db2a399..e1ffcd5d 100644
--- a/overrides/partials/header.html
+++ b/overrides/partials/header.html
@@ -1,24 +1,7 @@
-<!--
-  Copyright (c) 2016-2025 Martin Donath <martin.donath@squidfunk.com>
+<!-- SPDX-FileCopyrightText: 2016-2025 Martin Donath <martin.donath@squidfunk.com> -->
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: MIT -->
 
-  Permission is hereby granted, free of charge, to any person obtaining a copy
-  of this software and associated documentation files (the "Software"), to
-  deal in the Software without restriction, including without limitation the
-  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-  sell copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
-
-  The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-  IN THE SOFTWARE.
--->
 
 <!-- Determine classes -->
 {% set class = "md-header" %}
diff --git a/overrides/partials/nav.html b/overrides/partials/nav.html
index 119d738a..432eb57f 100644
--- a/overrides/partials/nav.html
+++ b/overrides/partials/nav.html
@@ -1,24 +1,7 @@
-<!--
-  Copyright (c) 2016-2025 Martin Donath <martin.donath@squidfunk.com>
+<!-- SPDX-FileCopyrightText: 2016-2025 Martin Donath <martin.donath@squidfunk.com> -->
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: MIT -->
 
-  Permission is hereby granted, free of charge, to any person obtaining a copy
-  of this software and associated documentation files (the "Software"), to
-  deal in the Software without restriction, including without limitation the
-  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-  sell copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
-
-  The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-  IN THE SOFTWARE.
--->
 
 {% import "partials/nav-item.html" as item with context %}
 
diff --git a/overrides/partials/toc-item.html b/overrides/partials/toc-item.html
index a0922005..349f10be 100644
--- a/overrides/partials/toc-item.html
+++ b/overrides/partials/toc-item.html
@@ -1,24 +1,7 @@
-<!--
-  Copyright (c) 2016-2025 Martin Donath <martin.donath@squidfunk.com>
+<!-- SPDX-FileCopyrightText: 2016-2025 Martin Donath <martin.donath@squidfunk.com> -->
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: MIT -->
 
-  Permission is hereby granted, free of charge, to any person obtaining a copy
-  of this software and associated documentation files (the "Software"), to
-  deal in the Software without restriction, including without limitation the
-  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-  sell copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
-
-  The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-  IN THE SOFTWARE.
--->
 
 <!-- Table of contents item -->
 <li class="md-nav__item">
@@ -40,4 +23,4 @@
         </ul>
       </nav>
     {% endif %}
-  </li>
\ No newline at end of file
+  </li>
diff --git a/pyproject.toml b/pyproject.toml
index e070c26f..8051f01e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"
diff --git a/src/tagstudio/core/constants.py b/src/tagstudio/core/constants.py
index 7c98ddd5..4cd6f582 100644
--- a/src/tagstudio/core/constants.py
+++ b/src/tagstudio/core/constants.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 VERSION: str = "9.5.7"  # Major.Minor.Patch
 VERSION_BRANCH: str = ""  # Usually "" or "Pre-Release"
diff --git a/src/tagstudio/core/driver.py b/src/tagstudio/core/driver.py
index 4343054d..cf50c45e 100644
--- a/src/tagstudio/core/driver.py
+++ b/src/tagstudio/core/driver.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 from pathlib import Path
 
 import structlog
diff --git a/src/tagstudio/core/enums.py b/src/tagstudio/core/enums.py
index 2bc33748..f821e103 100644
--- a/src/tagstudio/core/enums.py
+++ b/src/tagstudio/core/enums.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import enum
 
diff --git a/src/tagstudio/core/exceptions.py b/src/tagstudio/core/exceptions.py
index 10bec533..f3ab828c 100644
--- a/src/tagstudio/core/exceptions.py
+++ b/src/tagstudio/core/exceptions.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 class NoRendererError(Exception): ...
diff --git a/src/tagstudio/core/library/alchemy/constants.py b/src/tagstudio/core/library/alchemy/constants.py
index 31065c2c..48ab5cbb 100644
--- a/src/tagstudio/core/library/alchemy/constants.py
+++ b/src/tagstudio/core/library/alchemy/constants.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from sqlalchemy import text
diff --git a/src/tagstudio/core/library/alchemy/db.py b/src/tagstudio/core/library/alchemy/db.py
index 7e728f79..de119d0a 100644
--- a/src/tagstudio/core/library/alchemy/db.py
+++ b/src/tagstudio/core/library/alchemy/db.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from pathlib import Path
diff --git a/src/tagstudio/core/library/alchemy/default_color_groups.py b/src/tagstudio/core/library/alchemy/default_color_groups.py
index 9193fc09..4af29595 100644
--- a/src/tagstudio/core/library/alchemy/default_color_groups.py
+++ b/src/tagstudio/core/library/alchemy/default_color_groups.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import structlog
diff --git a/src/tagstudio/core/library/alchemy/enums.py b/src/tagstudio/core/library/alchemy/enums.py
index 020420f4..349d0e9e 100644
--- a/src/tagstudio/core/library/alchemy/enums.py
+++ b/src/tagstudio/core/library/alchemy/enums.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 import enum
 import random
 from dataclasses import dataclass, field, replace
diff --git a/src/tagstudio/core/library/alchemy/fields.py b/src/tagstudio/core/library/alchemy/fields.py
index 5d4d6c96..729124af 100644
--- a/src/tagstudio/core/library/alchemy/fields.py
+++ b/src/tagstudio/core/library/alchemy/fields.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from __future__ import annotations
diff --git a/src/tagstudio/core/library/alchemy/joins.py b/src/tagstudio/core/library/alchemy/joins.py
index d01e6764..7cf1c486 100644
--- a/src/tagstudio/core/library/alchemy/joins.py
+++ b/src/tagstudio/core/library/alchemy/joins.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from sqlalchemy import ForeignKey
diff --git a/src/tagstudio/core/library/alchemy/library.py b/src/tagstudio/core/library/alchemy/library.py
index b04c031d..c55a10a0 100644
--- a/src/tagstudio/core/library/alchemy/library.py
+++ b/src/tagstudio/core/library/alchemy/library.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 # NOTE: This file contains necessary use of deprecated first-party code until that
 # code is removed in a future version (prefs).
diff --git a/src/tagstudio/core/library/alchemy/models.py b/src/tagstudio/core/library/alchemy/models.py
index be4e1647..c2b81f66 100644
--- a/src/tagstudio/core/library/alchemy/models.py
+++ b/src/tagstudio/core/library/alchemy/models.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from datetime import datetime as dt
 from pathlib import Path
diff --git a/src/tagstudio/core/library/alchemy/registries/dupe_files_registry.py b/src/tagstudio/core/library/alchemy/registries/dupe_files_registry.py
index 95143fe2..01147920 100644
--- a/src/tagstudio/core/library/alchemy/registries/dupe_files_registry.py
+++ b/src/tagstudio/core/library/alchemy/registries/dupe_files_registry.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 import xml.etree.ElementTree as ET
 from dataclasses import dataclass, field
 from pathlib import Path
diff --git a/src/tagstudio/core/library/alchemy/registries/ignored_registry.py b/src/tagstudio/core/library/alchemy/registries/ignored_registry.py
index a864e248..5401c61b 100644
--- a/src/tagstudio/core/library/alchemy/registries/ignored_registry.py
+++ b/src/tagstudio/core/library/alchemy/registries/ignored_registry.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from collections.abc import Iterator
diff --git a/src/tagstudio/core/library/alchemy/registries/unlinked_registry.py b/src/tagstudio/core/library/alchemy/registries/unlinked_registry.py
index 8058df85..3f2e8539 100644
--- a/src/tagstudio/core/library/alchemy/registries/unlinked_registry.py
+++ b/src/tagstudio/core/library/alchemy/registries/unlinked_registry.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 from collections.abc import Iterator
 from dataclasses import dataclass, field
 from pathlib import Path
diff --git a/src/tagstudio/core/library/alchemy/visitors.py b/src/tagstudio/core/library/alchemy/visitors.py
index 7f9fc799..35dcf56a 100644
--- a/src/tagstudio/core/library/alchemy/visitors.py
+++ b/src/tagstudio/core/library/alchemy/visitors.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import re
 from typing import TYPE_CHECKING, override
diff --git a/src/tagstudio/core/library/ignore.py b/src/tagstudio/core/library/ignore.py
index 79c70c54..63b7ab18 100644
--- a/src/tagstudio/core/library/ignore.py
+++ b/src/tagstudio/core/library/ignore.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from copy import deepcopy
 from pathlib import Path
diff --git a/src/tagstudio/core/library/json/fields.py b/src/tagstudio/core/library/json/fields.py
index 5e3509e4..7797096a 100644
--- a/src/tagstudio/core/library/json/fields.py
+++ b/src/tagstudio/core/library/json/fields.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 BOX_FIELDS = ["tag_box", "text_box"]
 TEXT_FIELDS = ["text_line", "text_box"]
 DATE_FIELDS = ["datetime"]
diff --git a/src/tagstudio/core/library/json/library.py b/src/tagstudio/core/library/json/library.py
index 81367201..e3370e2a 100644
--- a/src/tagstudio/core/library/json/library.py
+++ b/src/tagstudio/core/library/json/library.py
@@ -1,8 +1,8 @@
 # type: ignore
 # ruff: noqa
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 """The Library object and related methods for TagStudio."""
 
diff --git a/src/tagstudio/core/library/refresh.py b/src/tagstudio/core/library/refresh.py
index 531363f7..824cae52 100644
--- a/src/tagstudio/core/library/refresh.py
+++ b/src/tagstudio/core/library/refresh.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import shutil
diff --git a/src/tagstudio/core/media_types.py b/src/tagstudio/core/media_types.py
index c7c4f0fc..b18290d1 100644
--- a/src/tagstudio/core/media_types.py
+++ b/src/tagstudio/core/media_types.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import mimetypes
diff --git a/src/tagstudio/core/query_lang/ast.py b/src/tagstudio/core/query_lang/ast.py
index 0323bf26..166c9dd7 100644
--- a/src/tagstudio/core/query_lang/ast.py
+++ b/src/tagstudio/core/query_lang/ast.py
@@ -1,11 +1,10 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: MIT
 
 
 from abc import ABC, abstractmethod
 from enum import Enum
-from typing import Generic, TypeVar, override
+from typing import TypeVar, override
 
 
 class ConstraintType(Enum):
@@ -98,7 +97,7 @@ class Not(AST):
 T = TypeVar("T")
 
 
-class BaseVisitor(ABC, Generic[T]):
+class BaseVisitor[T](ABC):
     def visit(self, node: AST) -> T:
         if isinstance(node, ANDList):
             return self.visit_and_list(node)
diff --git a/src/tagstudio/core/query_lang/parser.py b/src/tagstudio/core/query_lang/parser.py
index ff17465d..1dc336c5 100644
--- a/src/tagstudio/core/query_lang/parser.py
+++ b/src/tagstudio/core/query_lang/parser.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from tagstudio.core.query_lang.ast import (
diff --git a/src/tagstudio/core/query_lang/tokenizer.py b/src/tagstudio/core/query_lang/tokenizer.py
index 3cdb5035..fc6e6685 100644
--- a/src/tagstudio/core/query_lang/tokenizer.py
+++ b/src/tagstudio/core/query_lang/tokenizer.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from enum import Enum
diff --git a/src/tagstudio/core/query_lang/util.py b/src/tagstudio/core/query_lang/util.py
index 95e53dbe..e0c2b719 100644
--- a/src/tagstudio/core/query_lang/util.py
+++ b/src/tagstudio/core/query_lang/util.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: MIT
 
 
 from typing import override
diff --git a/src/tagstudio/core/ts_core.py b/src/tagstudio/core/ts_core.py
index 85c800d6..752e1d4a 100644
--- a/src/tagstudio/core/ts_core.py
+++ b/src/tagstudio/core/ts_core.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 """The core classes and methods of TagStudio."""
 
diff --git a/src/tagstudio/core/utils/encoding.py b/src/tagstudio/core/utils/encoding.py
index f5a4a0d9..73265f01 100644
--- a/src/tagstudio/core/utils/encoding.py
+++ b/src/tagstudio/core/utils/encoding.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from pathlib import Path
 
diff --git a/src/tagstudio/core/utils/silent_subprocess.py b/src/tagstudio/core/utils/silent_subprocess.py
index 75fb920d..d4d818a4 100644
--- a/src/tagstudio/core/utils/silent_subprocess.py
+++ b/src/tagstudio/core/utils/silent_subprocess.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import os
 import subprocess
diff --git a/src/tagstudio/core/utils/singleton.py b/src/tagstudio/core/utils/singleton.py
index 76b6bf08..82b4518d 100644
--- a/src/tagstudio/core/utils/singleton.py
+++ b/src/tagstudio/core/utils/singleton.py
@@ -1,10 +1,11 @@
-# Based off example from Refactoring Guru:
-# https://refactoring.guru/design-patterns/singleton/python/example#example-1
-# Adapted for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from threading import Lock
 
 
+# See also: https://refactoring.guru/design-patterns/singleton/python/example#example-1
 class Singleton(type):
     """A thread-safe implementation of a Singleton."""
 
diff --git a/src/tagstudio/core/utils/str_formatting.py b/src/tagstudio/core/utils/str_formatting.py
index 38151d0e..9fa41ebf 100644
--- a/src/tagstudio/core/utils/str_formatting.py
+++ b/src/tagstudio/core/utils/str_formatting.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import semver
 
diff --git a/src/tagstudio/core/utils/types.py b/src/tagstudio/core/utils/types.py
index d21feb95..57970334 100644
--- a/src/tagstudio/core/utils/types.py
+++ b/src/tagstudio/core/utils/types.py
@@ -1,5 +1,6 @@
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from typing import TypeVar
 
diff --git a/src/tagstudio/main.py b/src/tagstudio/main.py
index 70411a27..7997884d 100755
--- a/src/tagstudio/main.py
+++ b/src/tagstudio/main.py
@@ -1,7 +1,6 @@
 #!/usr/bin/env python
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 """TagStudio launcher."""
diff --git a/src/tagstudio/qt/cache_manager.py b/src/tagstudio/qt/cache_manager.py
index e15ead68..00d812ff 100644
--- a/src/tagstudio/qt/cache_manager.py
+++ b/src/tagstudio/qt/cache_manager.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import math
 from collections.abc import Iterable
diff --git a/src/tagstudio/qt/controllers/ffmpeg_missing_message_box.py b/src/tagstudio/qt/controllers/ffmpeg_missing_message_box.py
index 3de27f88..a3c71176 100644
--- a/src/tagstudio/qt/controllers/ffmpeg_missing_message_box.py
+++ b/src/tagstudio/qt/controllers/ffmpeg_missing_message_box.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 from shutil import which
 
 import structlog
diff --git a/src/tagstudio/qt/controllers/fix_ignored_modal_controller.py b/src/tagstudio/qt/controllers/fix_ignored_modal_controller.py
index 1199f3cd..0a6bd368 100644
--- a/src/tagstudio/qt/controllers/fix_ignored_modal_controller.py
+++ b/src/tagstudio/qt/controllers/fix_ignored_modal_controller.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import TYPE_CHECKING, override
diff --git a/src/tagstudio/qt/controllers/ignore_modal_controller.py b/src/tagstudio/qt/controllers/ignore_modal_controller.py
index 66937d5b..e2226d66 100644
--- a/src/tagstudio/qt/controllers/ignore_modal_controller.py
+++ b/src/tagstudio/qt/controllers/ignore_modal_controller.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from pathlib import Path
diff --git a/src/tagstudio/qt/controllers/library_info_window_controller.py b/src/tagstudio/qt/controllers/library_info_window_controller.py
index ad4a0127..f7bef1a4 100644
--- a/src/tagstudio/qt/controllers/library_info_window_controller.py
+++ b/src/tagstudio/qt/controllers/library_info_window_controller.py
@@ -1,6 +1,7 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 import os
 from pathlib import Path
 from typing import TYPE_CHECKING, override
diff --git a/src/tagstudio/qt/controllers/out_of_date_message_box.py b/src/tagstudio/qt/controllers/out_of_date_message_box.py
index bc7fb75a..d22c148c 100644
--- a/src/tagstudio/qt/controllers/out_of_date_message_box.py
+++ b/src/tagstudio/qt/controllers/out_of_date_message_box.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 import structlog
 from PySide6.QtCore import Qt
 from PySide6.QtWidgets import QMessageBox
diff --git a/src/tagstudio/qt/controllers/paged_panel_controller.py b/src/tagstudio/qt/controllers/paged_panel_controller.py
index ddffe554..f4a7e8e8 100644
--- a/src/tagstudio/qt/controllers/paged_panel_controller.py
+++ b/src/tagstudio/qt/controllers/paged_panel_controller.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import override
diff --git a/src/tagstudio/qt/controllers/paged_panel_state.py b/src/tagstudio/qt/controllers/paged_panel_state.py
index 368cc4d4..a239ca76 100644
--- a/src/tagstudio/qt/controllers/paged_panel_state.py
+++ b/src/tagstudio/qt/controllers/paged_panel_state.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from PySide6.QtWidgets import QPushButton
diff --git a/src/tagstudio/qt/controllers/preview_panel_controller.py b/src/tagstudio/qt/controllers/preview_panel_controller.py
index 360f0558..7933e488 100644
--- a/src/tagstudio/qt/controllers/preview_panel_controller.py
+++ b/src/tagstudio/qt/controllers/preview_panel_controller.py
@@ -1,5 +1,6 @@
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import typing
 from warnings import catch_warnings
diff --git a/src/tagstudio/qt/controllers/preview_thumb_controller.py b/src/tagstudio/qt/controllers/preview_thumb_controller.py
index 8986f06f..2c17e242 100644
--- a/src/tagstudio/qt/controllers/preview_thumb_controller.py
+++ b/src/tagstudio/qt/controllers/preview_thumb_controller.py
@@ -1,5 +1,6 @@
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import io
 from pathlib import Path
diff --git a/src/tagstudio/qt/controllers/tag_box_controller.py b/src/tagstudio/qt/controllers/tag_box_controller.py
index 2a5865d8..a2b43482 100644
--- a/src/tagstudio/qt/controllers/tag_box_controller.py
+++ b/src/tagstudio/qt/controllers/tag_box_controller.py
@@ -1,5 +1,5 @@
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import TYPE_CHECKING, override
diff --git a/src/tagstudio/qt/global_settings.py b/src/tagstudio/qt/global_settings.py
index 42a7fe38..94be1f07 100644
--- a/src/tagstudio/qt/global_settings.py
+++ b/src/tagstudio/qt/global_settings.py
@@ -1,5 +1,6 @@
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import platform
 from datetime import datetime
diff --git a/src/tagstudio/qt/helpers/color_overlay.py b/src/tagstudio/qt/helpers/color_overlay.py
index 8fd43263..0d276210 100644
--- a/src/tagstudio/qt/helpers/color_overlay.py
+++ b/src/tagstudio/qt/helpers/color_overlay.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from PIL import Image
diff --git a/src/tagstudio/qt/helpers/escape_text.py b/src/tagstudio/qt/helpers/escape_text.py
index 989ef114..0885d173 100644
--- a/src/tagstudio/qt/helpers/escape_text.py
+++ b/src/tagstudio/qt/helpers/escape_text.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 def escape_text(text: str):
diff --git a/src/tagstudio/qt/helpers/file_tester.py b/src/tagstudio/qt/helpers/file_tester.py
index d899f7e6..89e20295 100644
--- a/src/tagstudio/qt/helpers/file_tester.py
+++ b/src/tagstudio/qt/helpers/file_tester.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from pathlib import Path
diff --git a/src/tagstudio/qt/helpers/gradients.py b/src/tagstudio/qt/helpers/gradients.py
index 1e672868..004a3852 100644
--- a/src/tagstudio/qt/helpers/gradients.py
+++ b/src/tagstudio/qt/helpers/gradients.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from PIL import Image
diff --git a/src/tagstudio/qt/helpers/image_effects.py b/src/tagstudio/qt/helpers/image_effects.py
index ca764744..3af6cf3c 100644
--- a/src/tagstudio/qt/helpers/image_effects.py
+++ b/src/tagstudio/qt/helpers/image_effects.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import numpy as np
diff --git a/src/tagstudio/qt/helpers/text_wrapper.py b/src/tagstudio/qt/helpers/text_wrapper.py
index 71d6b5be..ce4bae5d 100644
--- a/src/tagstudio/qt/helpers/text_wrapper.py
+++ b/src/tagstudio/qt/helpers/text_wrapper.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from PIL import Image, ImageDraw, ImageFont
diff --git a/src/tagstudio/qt/mixed/about_modal.py b/src/tagstudio/qt/mixed/about_modal.py
index e6be1c7d..3d1092f1 100644
--- a/src/tagstudio/qt/mixed/about_modal.py
+++ b/src/tagstudio/qt/mixed/about_modal.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import math
diff --git a/src/tagstudio/qt/mixed/add_field.py b/src/tagstudio/qt/mixed/add_field.py
index ba83ab58..52b64e5e 100644
--- a/src/tagstudio/qt/mixed/add_field.py
+++ b/src/tagstudio/qt/mixed/add_field.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import override
diff --git a/src/tagstudio/qt/mixed/build_color.py b/src/tagstudio/qt/mixed/build_color.py
index a33ef435..07b43d88 100644
--- a/src/tagstudio/qt/mixed/build_color.py
+++ b/src/tagstudio/qt/mixed/build_color.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import contextlib
diff --git a/src/tagstudio/qt/mixed/build_namespace.py b/src/tagstudio/qt/mixed/build_namespace.py
index c7b4ed23..5b91a700 100644
--- a/src/tagstudio/qt/mixed/build_namespace.py
+++ b/src/tagstudio/qt/mixed/build_namespace.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import contextlib
diff --git a/src/tagstudio/qt/mixed/build_tag.py b/src/tagstudio/qt/mixed/build_tag.py
index 94e63f3e..a6aef61f 100644
--- a/src/tagstudio/qt/mixed/build_tag.py
+++ b/src/tagstudio/qt/mixed/build_tag.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import sys
diff --git a/src/tagstudio/qt/mixed/collage_icon.py b/src/tagstudio/qt/mixed/collage_icon.py
index 13930085..105aff34 100644
--- a/src/tagstudio/qt/mixed/collage_icon.py
+++ b/src/tagstudio/qt/mixed/collage_icon.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import math
diff --git a/src/tagstudio/qt/mixed/color_box.py b/src/tagstudio/qt/mixed/color_box.py
index 20866c43..59079412 100644
--- a/src/tagstudio/qt/mixed/color_box.py
+++ b/src/tagstudio/qt/mixed/color_box.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import typing
diff --git a/src/tagstudio/qt/mixed/datetime_picker.py b/src/tagstudio/qt/mixed/datetime_picker.py
index b059dd96..318c4768 100644
--- a/src/tagstudio/qt/mixed/datetime_picker.py
+++ b/src/tagstudio/qt/mixed/datetime_picker.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 import typing
 from collections.abc import Callable
 from datetime import datetime as dt
diff --git a/src/tagstudio/qt/mixed/drop_import_modal.py b/src/tagstudio/qt/mixed/drop_import_modal.py
index 766ce608..570448b5 100644
--- a/src/tagstudio/qt/mixed/drop_import_modal.py
+++ b/src/tagstudio/qt/mixed/drop_import_modal.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import enum
diff --git a/src/tagstudio/qt/mixed/field_containers.py b/src/tagstudio/qt/mixed/field_containers.py
index 12f82577..212e6a54 100644
--- a/src/tagstudio/qt/mixed/field_containers.py
+++ b/src/tagstudio/qt/mixed/field_containers.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import sys
diff --git a/src/tagstudio/qt/mixed/field_widget.py b/src/tagstudio/qt/mixed/field_widget.py
index d2678b55..04ee3c37 100644
--- a/src/tagstudio/qt/mixed/field_widget.py
+++ b/src/tagstudio/qt/mixed/field_widget.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import math
diff --git a/src/tagstudio/qt/mixed/file_attributes.py b/src/tagstudio/qt/mixed/file_attributes.py
index 5704e6e9..f4786ef4 100644
--- a/src/tagstudio/qt/mixed/file_attributes.py
+++ b/src/tagstudio/qt/mixed/file_attributes.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import os
diff --git a/src/tagstudio/qt/mixed/fix_dupe_files.py b/src/tagstudio/qt/mixed/fix_dupe_files.py
index c215e862..c7c3165b 100644
--- a/src/tagstudio/qt/mixed/fix_dupe_files.py
+++ b/src/tagstudio/qt/mixed/fix_dupe_files.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import TYPE_CHECKING, override
diff --git a/src/tagstudio/qt/mixed/fix_unlinked.py b/src/tagstudio/qt/mixed/fix_unlinked.py
index 63a1affc..59474c1f 100644
--- a/src/tagstudio/qt/mixed/fix_unlinked.py
+++ b/src/tagstudio/qt/mixed/fix_unlinked.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import TYPE_CHECKING, override
diff --git a/src/tagstudio/qt/mixed/folders_to_tags.py b/src/tagstudio/qt/mixed/folders_to_tags.py
index f7051f77..45cdbc0a 100644
--- a/src/tagstudio/qt/mixed/folders_to_tags.py
+++ b/src/tagstudio/qt/mixed/folders_to_tags.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import math
diff --git a/src/tagstudio/qt/mixed/item_thumb.py b/src/tagstudio/qt/mixed/item_thumb.py
index 49a9858f..1e112eaf 100644
--- a/src/tagstudio/qt/mixed/item_thumb.py
+++ b/src/tagstudio/qt/mixed/item_thumb.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from enum import Enum
diff --git a/src/tagstudio/qt/mixed/landing.py b/src/tagstudio/qt/mixed/landing.py
index 050994ac..7f5f6ba7 100644
--- a/src/tagstudio/qt/mixed/landing.py
+++ b/src/tagstudio/qt/mixed/landing.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import sys
diff --git a/src/tagstudio/qt/mixed/media_player.py b/src/tagstudio/qt/mixed/media_player.py
index 065e73d4..f4649efe 100644
--- a/src/tagstudio/qt/mixed/media_player.py
+++ b/src/tagstudio/qt/mixed/media_player.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import typing
 from pathlib import Path
diff --git a/src/tagstudio/qt/mixed/merge_dupe_entries.py b/src/tagstudio/qt/mixed/merge_dupe_entries.py
index af56a0bf..0091bb3a 100644
--- a/src/tagstudio/qt/mixed/merge_dupe_entries.py
+++ b/src/tagstudio/qt/mixed/merge_dupe_entries.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import typing
diff --git a/src/tagstudio/qt/mixed/migration_modal.py b/src/tagstudio/qt/mixed/migration_modal.py
index fc5504c3..b761d81e 100644
--- a/src/tagstudio/qt/mixed/migration_modal.py
+++ b/src/tagstudio/qt/mixed/migration_modal.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import traceback
diff --git a/src/tagstudio/qt/mixed/mirror_entries_modal.py b/src/tagstudio/qt/mixed/mirror_entries_modal.py
index 20c37881..d06627a6 100644
--- a/src/tagstudio/qt/mixed/mirror_entries_modal.py
+++ b/src/tagstudio/qt/mixed/mirror_entries_modal.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import typing
diff --git a/src/tagstudio/qt/mixed/pagination.py b/src/tagstudio/qt/mixed/pagination.py
index e39fc048..b3a12643 100644
--- a/src/tagstudio/qt/mixed/pagination.py
+++ b/src/tagstudio/qt/mixed/pagination.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 """A pagination widget created for TagStudio."""
diff --git a/src/tagstudio/qt/mixed/progress_bar.py b/src/tagstudio/qt/mixed/progress_bar.py
index 9dba568a..e9c46c09 100644
--- a/src/tagstudio/qt/mixed/progress_bar.py
+++ b/src/tagstudio/qt/mixed/progress_bar.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from collections.abc import Callable
diff --git a/src/tagstudio/qt/mixed/relink_entries_modal.py b/src/tagstudio/qt/mixed/relink_entries_modal.py
index c966f873..8acd7c1b 100644
--- a/src/tagstudio/qt/mixed/relink_entries_modal.py
+++ b/src/tagstudio/qt/mixed/relink_entries_modal.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from PySide6.QtCore import QObject, Signal
diff --git a/src/tagstudio/qt/mixed/remove_ignored_modal.py b/src/tagstudio/qt/mixed/remove_ignored_modal.py
index 0d45f094..5977009e 100644
--- a/src/tagstudio/qt/mixed/remove_ignored_modal.py
+++ b/src/tagstudio/qt/mixed/remove_ignored_modal.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import TYPE_CHECKING, override
diff --git a/src/tagstudio/qt/mixed/remove_unlinked_modal.py b/src/tagstudio/qt/mixed/remove_unlinked_modal.py
index 1b5353cb..0b4e6b6b 100644
--- a/src/tagstudio/qt/mixed/remove_unlinked_modal.py
+++ b/src/tagstudio/qt/mixed/remove_unlinked_modal.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import TYPE_CHECKING, override
diff --git a/src/tagstudio/qt/mixed/settings_panel.py b/src/tagstudio/qt/mixed/settings_panel.py
index 19d33754..5e8c022d 100644
--- a/src/tagstudio/qt/mixed/settings_panel.py
+++ b/src/tagstudio/qt/mixed/settings_panel.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import TYPE_CHECKING, Any
diff --git a/src/tagstudio/qt/mixed/tag_color_label.py b/src/tagstudio/qt/mixed/tag_color_label.py
index 39d5d96f..8052f59d 100644
--- a/src/tagstudio/qt/mixed/tag_color_label.py
+++ b/src/tagstudio/qt/mixed/tag_color_label.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import typing
diff --git a/src/tagstudio/qt/mixed/tag_color_manager.py b/src/tagstudio/qt/mixed/tag_color_manager.py
index d381fcac..92c3b42b 100644
--- a/src/tagstudio/qt/mixed/tag_color_manager.py
+++ b/src/tagstudio/qt/mixed/tag_color_manager.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from collections.abc import Callable
 from typing import TYPE_CHECKING, override
diff --git a/src/tagstudio/qt/mixed/tag_color_preview.py b/src/tagstudio/qt/mixed/tag_color_preview.py
index 8d8a7e8b..c73571d4 100644
--- a/src/tagstudio/qt/mixed/tag_color_preview.py
+++ b/src/tagstudio/qt/mixed/tag_color_preview.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import typing
diff --git a/src/tagstudio/qt/mixed/tag_color_selection.py b/src/tagstudio/qt/mixed/tag_color_selection.py
index e6bacc1a..a58d3c06 100644
--- a/src/tagstudio/qt/mixed/tag_color_selection.py
+++ b/src/tagstudio/qt/mixed/tag_color_selection.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import structlog
diff --git a/src/tagstudio/qt/mixed/tag_database.py b/src/tagstudio/qt/mixed/tag_database.py
index 180cee9c..1ac59ea1 100644
--- a/src/tagstudio/qt/mixed/tag_database.py
+++ b/src/tagstudio/qt/mixed/tag_database.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import structlog
diff --git a/src/tagstudio/qt/mixed/tag_search.py b/src/tagstudio/qt/mixed/tag_search.py
index b4193307..e309d5d0 100644
--- a/src/tagstudio/qt/mixed/tag_search.py
+++ b/src/tagstudio/qt/mixed/tag_search.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import TYPE_CHECKING, Union
diff --git a/src/tagstudio/qt/mixed/tag_widget.py b/src/tagstudio/qt/mixed/tag_widget.py
index 85b62c4e..5907fd18 100644
--- a/src/tagstudio/qt/mixed/tag_widget.py
+++ b/src/tagstudio/qt/mixed/tag_widget.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from collections.abc import Callable
diff --git a/src/tagstudio/qt/mixed/text_field.py b/src/tagstudio/qt/mixed/text_field.py
index c50123ea..3d958e3c 100644
--- a/src/tagstudio/qt/mixed/text_field.py
+++ b/src/tagstudio/qt/mixed/text_field.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import re
diff --git a/src/tagstudio/qt/mnemonics.py b/src/tagstudio/qt/mnemonics.py
index a5f13bda..359e7f44 100644
--- a/src/tagstudio/qt/mnemonics.py
+++ b/src/tagstudio/qt/mnemonics.py
@@ -1,5 +1,7 @@
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 import re
 
 import structlog
diff --git a/src/tagstudio/qt/models/palette.py b/src/tagstudio/qt/models/palette.py
index 0d658a57..120dab72 100644
--- a/src/tagstudio/qt/models/palette.py
+++ b/src/tagstudio/qt/models/palette.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import traceback
 from enum import IntEnum
diff --git a/src/tagstudio/qt/platform_strings.py b/src/tagstudio/qt/platform_strings.py
index 6144896f..91f12a31 100644
--- a/src/tagstudio/qt/platform_strings.py
+++ b/src/tagstudio/qt/platform_strings.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 """A collection of platform-dependant strings."""
diff --git a/src/tagstudio/qt/previews/renderer.py b/src/tagstudio/qt/previews/renderer.py
index 9fc8ae6c..1f4215f6 100644
--- a/src/tagstudio/qt/previews/renderer.py
+++ b/src/tagstudio/qt/previews/renderer.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import base64
diff --git a/src/tagstudio/qt/previews/vendored/blender_renderer.py b/src/tagstudio/qt/previews/vendored/blender_renderer.py
index 10e059e1..1d83f13f 100644
--- a/src/tagstudio/qt/previews/vendored/blender_renderer.py
+++ b/src/tagstudio/qt/previews/vendored/blender_renderer.py
@@ -1,22 +1,7 @@
 #!/usr/bin/env python3
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
-# ##### BEGIN GPL LICENSE BLOCK #####
-#
-#  This program is free software; you can redistribute it and/or
-#  modify it under the terms of the GNU General Public License
-#  as published by the Free Software Foundation; either version 2
-#  of the License, or (at your option) any later version.
-#
-#  This program is distributed in the hope that it will be useful,
-#  but WITHOUT ANY WARRANTY; without even the implied warranty of
-#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#  GNU General Public License for more details.
-#
-#  You should have received a copy of the GNU General Public License
-#  along with this program; if not, write to the Free Software Foundation,
-#  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-#
-# ##### END GPL LICENSE BLOCK #####
 
 # <pep8 compliant>
 
diff --git a/src/tagstudio/qt/previews/vendored/ffmpeg.py b/src/tagstudio/qt/previews/vendored/ffmpeg.py
index e2d9a6c7..84d6ba19 100644
--- a/src/tagstudio/qt/previews/vendored/ffmpeg.py
+++ b/src/tagstudio/qt/previews/vendored/ffmpeg.py
@@ -1,7 +1,9 @@
-# Copyright (C) 2022  Karl Kroening (kkroening).
-# Licensed under the GPL-3.0 License.
+# SPDX-FileCopyrightText: (c) 2022  Karl Kroening (kkroening)
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 # Vendored from ffmpeg-python and ffmpeg-python PR#790 by amamic1803
 
+
 import contextlib
 import json
 import os
diff --git a/src/tagstudio/qt/previews/vendored/pydub/audio_segment.py b/src/tagstudio/qt/previews/vendored/pydub/audio_segment.py
index 2baad076..99ce1255 100644
--- a/src/tagstudio/qt/previews/vendored/pydub/audio_segment.py
+++ b/src/tagstudio/qt/previews/vendored/pydub/audio_segment.py
@@ -1,7 +1,8 @@
-# type: ignore
-# Copyright (C) 2022  James Robert (jiaaro).
-# Licensed under the MIT License.
+# SPDX-FileCopyrightText: (c) 2022  James Robert (jiaaro)
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 # Vendored from pydub
+# type: ignore
 
 
 import array
diff --git a/src/tagstudio/qt/previews/vendored/pydub/utils.py b/src/tagstudio/qt/previews/vendored/pydub/utils.py
index 4a4cb889..abc8ce9f 100644
--- a/src/tagstudio/qt/previews/vendored/pydub/utils.py
+++ b/src/tagstudio/qt/previews/vendored/pydub/utils.py
@@ -1,3 +1,9 @@
+# SPDX-FileCopyrightText: (c) 2011 James Robert, http://jiaaro.com
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+# Vendored from pydub
+
+
 import json
 import re
 import subprocess
diff --git a/src/tagstudio/qt/resource_manager.py b/src/tagstudio/qt/resource_manager.py
index e3d259b2..f1d387ab 100644
--- a/src/tagstudio/qt/resource_manager.py
+++ b/src/tagstudio/qt/resource_manager.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from pathlib import Path
diff --git a/src/tagstudio/qt/resources.qrc b/src/tagstudio/qt/resources.qrc
index c425750b..fcaf44c8 100644
--- a/src/tagstudio/qt/resources.qrc
+++ b/src/tagstudio/qt/resources.qrc
@@ -1,3 +1,5 @@
+<!-- SPDX-FileCopyrightText: (c) TagStudio Contributors -->
+<!-- SPDX-License-Identifier: GPL-3.0-only -->
 <!-- TO COMPILE: pyside6-rcc resources.qrc -o resources_rc.py (in \tagstudio\src\qt)-->
 <RCC>
     <qresource prefix="/">
@@ -9,4 +11,4 @@
         <!-- <file alias = "images/trash_icon_128.png">../../resources/qt/images/trash_icon_128.png</file> -->
         <!-- <file alias = "images/clipboard_icon_128.png">../../resources/qt/images/clipboard_icon_128.png</file> -->
     </qresource>
-</RCC>
\ No newline at end of file
+</RCC>
diff --git a/src/tagstudio/qt/resources_rc.py b/src/tagstudio/qt/resources_rc.py
index 6e1940b3..fc514375 100644
--- a/src/tagstudio/qt/resources_rc.py
+++ b/src/tagstudio/qt/resources_rc.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 # Resource object code (Python 3)
 # Created by: object code
 # Created by: The Resource Compiler for Qt version 6.8.0
diff --git a/src/tagstudio/qt/thumb_grid_layout.py b/src/tagstudio/qt/thumb_grid_layout.py
index 2eba8c70..42fac679 100644
--- a/src/tagstudio/qt/thumb_grid_layout.py
+++ b/src/tagstudio/qt/thumb_grid_layout.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 import math
 import time
 from collections.abc import Iterable
diff --git a/src/tagstudio/qt/translations.py b/src/tagstudio/qt/translations.py
index 0875bcf1..bec0b194 100644
--- a/src/tagstudio/qt/translations.py
+++ b/src/tagstudio/qt/translations.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 from collections import defaultdict
 from pathlib import Path
 from platform import system
diff --git a/src/tagstudio/qt/ts_qt.py b/src/tagstudio/qt/ts_qt.py
index 0f818460..538c053e 100644
--- a/src/tagstudio/qt/ts_qt.py
+++ b/src/tagstudio/qt/ts_qt.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 # SIGTERM handling based on the implementation by Virgil Dupras for dupeGuru:
 # https://github.com/arsenetar/dupeguru/blob/master/run.py#L71
@@ -21,7 +21,7 @@ from collections import OrderedDict
 from pathlib import Path
 from queue import Queue
 from shutil import which
-from typing import Generic, TypeVar
+from typing import TypeVar
 from warnings import catch_warnings
 
 import structlog
@@ -148,7 +148,7 @@ T = TypeVar("T")
 #                 | A   [B]<- C |
 #                 |[A]<- B    C |  Previous routes still exist
 #                 | A ->[D]     |  Stack is cut from [:A] on new route
-class History(Generic[T]):
+class History[T]:
     __history: list[T]
     __index: int = 0
 
diff --git a/src/tagstudio/qt/utils/custom_runnable.py b/src/tagstudio/qt/utils/custom_runnable.py
index 6520c16f..6c10dd06 100644
--- a/src/tagstudio/qt/utils/custom_runnable.py
+++ b/src/tagstudio/qt/utils/custom_runnable.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from PySide6.QtCore import QObject, QRunnable, Signal
diff --git a/src/tagstudio/qt/utils/file_deleter.py b/src/tagstudio/qt/utils/file_deleter.py
index 1e264b07..d12d4a9d 100644
--- a/src/tagstudio/qt/utils/file_deleter.py
+++ b/src/tagstudio/qt/utils/file_deleter.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import os
diff --git a/src/tagstudio/qt/utils/file_opener.py b/src/tagstudio/qt/utils/file_opener.py
index e1b27c27..a009dcff 100644
--- a/src/tagstudio/qt/utils/file_opener.py
+++ b/src/tagstudio/qt/utils/file_opener.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import shutil
 import subprocess
diff --git a/src/tagstudio/qt/utils/function_iterator.py b/src/tagstudio/qt/utils/function_iterator.py
index 9f213790..ef88d31e 100644
--- a/src/tagstudio/qt/utils/function_iterator.py
+++ b/src/tagstudio/qt/utils/function_iterator.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from collections.abc import Callable
diff --git a/src/tagstudio/qt/views/clickable_label.py b/src/tagstudio/qt/views/clickable_label.py
index c7478b9f..f382d14e 100644
--- a/src/tagstudio/qt/views/clickable_label.py
+++ b/src/tagstudio/qt/views/clickable_label.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import override
diff --git a/src/tagstudio/qt/views/clickable_slider.py b/src/tagstudio/qt/views/clickable_slider.py
index a683a74a..d1ac82a1 100644
--- a/src/tagstudio/qt/views/clickable_slider.py
+++ b/src/tagstudio/qt/views/clickable_slider.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from typing import override
 
diff --git a/src/tagstudio/qt/views/edit_text_box_modal.py b/src/tagstudio/qt/views/edit_text_box_modal.py
index 3c3bce32..fd60ba21 100644
--- a/src/tagstudio/qt/views/edit_text_box_modal.py
+++ b/src/tagstudio/qt/views/edit_text_box_modal.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from PySide6.QtWidgets import QPlainTextEdit, QVBoxLayout
diff --git a/src/tagstudio/qt/views/edit_text_line_modal.py b/src/tagstudio/qt/views/edit_text_line_modal.py
index 5ee933cc..d7ce6d0d 100644
--- a/src/tagstudio/qt/views/edit_text_line_modal.py
+++ b/src/tagstudio/qt/views/edit_text_line_modal.py
@@ -1,5 +1,6 @@
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from collections.abc import Callable
 
diff --git a/src/tagstudio/qt/views/fix_ignored_modal_view.py b/src/tagstudio/qt/views/fix_ignored_modal_view.py
index b198a2b4..fdad55e6 100644
--- a/src/tagstudio/qt/views/fix_ignored_modal_view.py
+++ b/src/tagstudio/qt/views/fix_ignored_modal_view.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from typing import TYPE_CHECKING, override
diff --git a/src/tagstudio/qt/views/ignore_modal_view.py b/src/tagstudio/qt/views/ignore_modal_view.py
index 7e7de161..277f5eea 100644
--- a/src/tagstudio/qt/views/ignore_modal_view.py
+++ b/src/tagstudio/qt/views/ignore_modal_view.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import structlog
diff --git a/src/tagstudio/qt/views/layouts/flow_layout.py b/src/tagstudio/qt/views/layouts/flow_layout.py
index 14fb411d..af14a7b2 100644
--- a/src/tagstudio/qt/views/layouts/flow_layout.py
+++ b/src/tagstudio/qt/views/layouts/flow_layout.py
@@ -1,6 +1,7 @@
-# Copyright (C) 2013 Riverbank Computing Limited.
-# Copyright (C) 2022 The Qt Company Ltd.
-# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+# SPDX-FileCopyrightText: (C) 2013 Riverbank Computing Limited.
+# SPDX-FileCopyrightText: (C) 2022 The Qt Company Ltd.
+# SPDX-FileCopyrightText: (C) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 """PySide6 port of the widgets/layouts/flowlayout example from Qt v6.x."""
diff --git a/src/tagstudio/qt/views/library_info_window_view.py b/src/tagstudio/qt/views/library_info_window_view.py
index 694d9259..bfd06c0a 100644
--- a/src/tagstudio/qt/views/library_info_window_view.py
+++ b/src/tagstudio/qt/views/library_info_window_view.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import math
diff --git a/src/tagstudio/qt/views/main_window.py b/src/tagstudio/qt/views/main_window.py
index a4c0485a..374df646 100644
--- a/src/tagstudio/qt/views/main_window.py
+++ b/src/tagstudio/qt/views/main_window.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import typing
diff --git a/src/tagstudio/qt/views/paged_body_wrapper.py b/src/tagstudio/qt/views/paged_body_wrapper.py
index cb713b3e..a6380d54 100644
--- a/src/tagstudio/qt/views/paged_body_wrapper.py
+++ b/src/tagstudio/qt/views/paged_body_wrapper.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from PySide6.QtCore import Qt
diff --git a/src/tagstudio/qt/views/panel_modal.py b/src/tagstudio/qt/views/panel_modal.py
old mode 100755
new mode 100644
index 241e57f7..b754c118
--- a/src/tagstudio/qt/views/panel_modal.py
+++ b/src/tagstudio/qt/views/panel_modal.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from collections.abc import Callable
diff --git a/src/tagstudio/qt/views/preview_panel_view.py b/src/tagstudio/qt/views/preview_panel_view.py
index 5ae7004c..f83045cd 100644
--- a/src/tagstudio/qt/views/preview_panel_view.py
+++ b/src/tagstudio/qt/views/preview_panel_view.py
@@ -1,5 +1,6 @@
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import traceback
 import typing
diff --git a/src/tagstudio/qt/views/preview_thumb_view.py b/src/tagstudio/qt/views/preview_thumb_view.py
index e50509ad..d6c032f7 100644
--- a/src/tagstudio/qt/views/preview_thumb_view.py
+++ b/src/tagstudio/qt/views/preview_thumb_view.py
@@ -1,5 +1,6 @@
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 import math
 import time
diff --git a/src/tagstudio/qt/views/qbutton_wrapper.py b/src/tagstudio/qt/views/qbutton_wrapper.py
index e26703d5..c6f90e32 100644
--- a/src/tagstudio/qt/views/qbutton_wrapper.py
+++ b/src/tagstudio/qt/views/qbutton_wrapper.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from PySide6.QtWidgets import QPushButton
diff --git a/src/tagstudio/qt/views/splash.py b/src/tagstudio/qt/views/splash.py
index fe139d17..220c4c5c 100644
--- a/src/tagstudio/qt/views/splash.py
+++ b/src/tagstudio/qt/views/splash.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import math
diff --git a/src/tagstudio/qt/views/styles/rounded_pixmap_style.py b/src/tagstudio/qt/views/styles/rounded_pixmap_style.py
index df83c5a0..33395a5a 100644
--- a/src/tagstudio/qt/views/styles/rounded_pixmap_style.py
+++ b/src/tagstudio/qt/views/styles/rounded_pixmap_style.py
@@ -1,8 +1,6 @@
-# Based on the implementation by eyllanesc:
-# https://stackoverflow.com/questions/54230005/qmovie-with-border-radius
-# Licensed under the Creative Commons CC BY-SA 4.0 License:
-# https://creativecommons.org/licenses/by-sa/4.0/
-# Modified for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) 2019 Edwin Yllanes
+# SPDX-License-Identifier: CC-BY-SA-4.0
+# See: https://stackoverflow.com/questions/54230005/qmovie-with-border-radius/54231484#54231484
 
 
 from typing import override
diff --git a/src/tagstudio/qt/views/tag_box_view.py b/src/tagstudio/qt/views/tag_box_view.py
index bf24a88c..e5c96462 100644
--- a/src/tagstudio/qt/views/tag_box_view.py
+++ b/src/tagstudio/qt/views/tag_box_view.py
@@ -1,5 +1,5 @@
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from collections.abc import Iterable
diff --git a/src/tagstudio/qt/views/thumb_button.py b/src/tagstudio/qt/views/thumb_button.py
index 88f5f906..d08f597d 100644
--- a/src/tagstudio/qt/views/thumb_button.py
+++ b/src/tagstudio/qt/views/thumb_button.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2024 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import sys
diff --git a/src/tagstudio/resources/qt/fonts/Oxanium-Bold.ttf.license b/src/tagstudio/resources/qt/fonts/Oxanium-Bold.ttf.license
new file mode 100644
index 00000000..d56fe894
--- /dev/null
+++ b/src/tagstudio/resources/qt/fonts/Oxanium-Bold.ttf.license
@@ -0,0 +1,2 @@
+SPDX-FileCopyrightText: 2019 The Oxanium Project Authors (https://github.com/sevmeyer/oxanium)
+SPDX-License-Identifier: OFL-1.1
diff --git a/tagstudio.spec b/tagstudio.spec
index e64bdecf..fbed8ea6 100644
--- a/tagstudio.spec
+++ b/tagstudio.spec
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 import platform
 from argparse import ArgumentParser
 
diff --git a/tests/conftest.py b/tests/conftest.py
index b9f4c0c5..28b1d577 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import sys
diff --git a/tests/macros/test_dupe_files.py b/tests/macros/test_dupe_files.py
index 05053555..cd296e16 100644
--- a/tests/macros/test_dupe_files.py
+++ b/tests/macros/test_dupe_files.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from pathlib import Path
 
diff --git a/tests/macros/test_folders_tags.py b/tests/macros/test_folders_tags.py
index 7beae3d8..c3fd32be 100644
--- a/tests/macros/test_folders_tags.py
+++ b/tests/macros/test_folders_tags.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from tagstudio.core.library.alchemy.library import Library
 from tagstudio.qt.mixed.folders_to_tags import folders_to_tags
diff --git a/tests/macros/test_missing_files.py b/tests/macros/test_missing_files.py
index 61bacce0..3ea463a6 100644
--- a/tests/macros/test_missing_files.py
+++ b/tests/macros/test_missing_files.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from pathlib import Path
 from tempfile import TemporaryDirectory
diff --git a/tests/macros/test_refresh_dir.py b/tests/macros/test_refresh_dir.py
index ca6ce697..01578aad 100644
--- a/tests/macros/test_refresh_dir.py
+++ b/tests/macros/test_refresh_dir.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from pathlib import Path
 from tempfile import TemporaryDirectory
diff --git a/tests/qt/test_about_modal.py b/tests/qt/test_about_modal.py
index 523eb6a6..7ee64735 100644
--- a/tests/qt/test_about_modal.py
+++ b/tests/qt/test_about_modal.py
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 from pytestqt.qtbot import QtBot
 
 from tagstudio.qt.mixed.about_modal import AboutModal
diff --git a/tests/qt/test_build_tag_panel.py b/tests/qt/test_build_tag_panel.py
index 9ae15726..b624356e 100644
--- a/tests/qt/test_build_tag_panel.py
+++ b/tests/qt/test_build_tag_panel.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from collections.abc import Callable
diff --git a/tests/qt/test_field_containers.py b/tests/qt/test_field_containers.py
index 2b992114..0d19e4e0 100644
--- a/tests/qt/test_field_containers.py
+++ b/tests/qt/test_field_containers.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from tagstudio.core.library.alchemy.library import Library
diff --git a/tests/qt/test_file_path_options.py b/tests/qt/test_file_path_options.py
index 412cd56f..1d28f33d 100644
--- a/tests/qt/test_file_path_options.py
+++ b/tests/qt/test_file_path_options.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import os
diff --git a/tests/qt/test_flow_widget.py b/tests/qt/test_flow_widget.py
index 115ded7a..97393416 100644
--- a/tests/qt/test_flow_widget.py
+++ b/tests/qt/test_flow_widget.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from PySide6.QtCore import QRect
diff --git a/tests/qt/test_folders_to_tags.py b/tests/qt/test_folders_to_tags.py
index eebee999..7e48fc59 100644
--- a/tests/qt/test_folders_to_tags.py
+++ b/tests/qt/test_folders_to_tags.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from tagstudio.core.library.alchemy.library import Library
diff --git a/tests/qt/test_global_settings.py b/tests/qt/test_global_settings.py
index 95d6b5f6..63eb5195 100644
--- a/tests/qt/test_global_settings.py
+++ b/tests/qt/test_global_settings.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from pathlib import Path
diff --git a/tests/qt/test_item_thumb.py b/tests/qt/test_item_thumb.py
index f022f976..d5c1e904 100644
--- a/tests/qt/test_item_thumb.py
+++ b/tests/qt/test_item_thumb.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import pytest
diff --git a/tests/qt/test_preview_panel.py b/tests/qt/test_preview_panel.py
index 12282c9b..b2e3ef5a 100644
--- a/tests/qt/test_preview_panel.py
+++ b/tests/qt/test_preview_panel.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from tagstudio.core.library.alchemy.library import Library
diff --git a/tests/qt/test_qt_driver.py b/tests/qt/test_qt_driver.py
index 3cf042aa..37bd3832 100644
--- a/tests/qt/test_qt_driver.py
+++ b/tests/qt/test_qt_driver.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 from tagstudio.core.library.alchemy.enums import BrowsingState
 from tagstudio.core.utils.types import unwrap
diff --git a/tests/qt/test_resource_manager.py b/tests/qt/test_resource_manager.py
index bb9ae72f..5a6d72df 100644
--- a/tests/qt/test_resource_manager.py
+++ b/tests/qt/test_resource_manager.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import structlog
diff --git a/tests/qt/test_tag_panel.py b/tests/qt/test_tag_panel.py
index 0d813da6..d5c70564 100644
--- a/tests/qt/test_tag_panel.py
+++ b/tests/qt/test_tag_panel.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from pytestqt.qtbot import QtBot
diff --git a/tests/qt/test_tag_search_panel.py b/tests/qt/test_tag_search_panel.py
index bc455685..04a176cc 100644
--- a/tests/qt/test_tag_search_panel.py
+++ b/tests/qt/test_tag_search_panel.py
@@ -1,6 +1,7 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
+
 from PySide6.QtCore import SIGNAL
 from pytestqt.qtbot import QtBot
 
diff --git a/tests/qt/test_theme_system.py b/tests/qt/test_theme_system.py
index 94a0bdac..ab2eecf3 100644
--- a/tests/qt/test_theme_system.py
+++ b/tests/qt/test_theme_system.py
@@ -1,6 +1,6 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
+
 
 """Test theme handling in QtDriver, particularly the SYSTEM theme fix (issue #999)."""
 
diff --git a/tests/test_db_migrations.py b/tests/test_db_migrations.py
index 6052a44a..7dee6b6c 100644
--- a/tests/test_db_migrations.py
+++ b/tests/test_db_migrations.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import shutil
diff --git a/tests/test_driver.py b/tests/test_driver.py
index 903cf1aa..5ca04b04 100644
--- a/tests/test_driver.py
+++ b/tests/test_driver.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from pathlib import Path
diff --git a/tests/test_json_migration.py b/tests/test_json_migration.py
index e44a08d3..3c3c15db 100644
--- a/tests/test_json_migration.py
+++ b/tests/test_json_migration.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025 Travis Abendshien (CyanVoxel).
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from pathlib import Path
diff --git a/tests/test_library.py b/tests/test_library.py
index 64d3f961..17f0d990 100644
--- a/tests/test_library.py
+++ b/tests/test_library.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 from collections.abc import Callable
diff --git a/tests/test_search.py b/tests/test_search.py
index 79812dfa..ee36af1e 100644
--- a/tests/test_search.py
+++ b/tests/test_search.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import pytest
diff --git a/tests/test_translations.py b/tests/test_translations.py
index f01be2c6..8d0533f3 100644
--- a/tests/test_translations.py
+++ b/tests/test_translations.py
@@ -1,6 +1,5 @@
-# Copyright (C) 2025
-# Licensed under the GPL-3.0 License.
-# Created for TagStudio: https://github.com/CyanVoxel/TagStudio
+# SPDX-FileCopyrightText: (c) TagStudio Contributors
+# SPDX-License-Identifier: GPL-3.0-only
 
 
 import string