chore: add MIT LICENSE and bundle M PLUS 1p OFL license with releases

.github/workflows/linux.yml

@@ -69,6 +69,8 @@ jobs:
         run: |
           mkdir package
           cp zig-out/bin/UsaProject package/
+          # Ship the bundled font's OFL license (M PLUS 1p is embedded in the binary).
+          cp assets/fonts/OFL.txt package/MPLUS1p-OFL.txt
           zip -r UsaProject-linux.zip package/
 
       - name: Upload artifact

.github/workflows/windows.yml

@@ -56,6 +56,8 @@ jobs:
         run: |
           mkdir package
           copy zig-out\bin\UsaProject.exe package\
+          # Ship the bundled font's OFL license (M PLUS 1p is embedded in the binary).
+          copy assets\fonts\OFL.txt package\MPLUS1p-OFL.txt
           Compress-Archive -Path package\* -DestinationPath UsaProject-windows.zip
 
       - name: Upload artifact

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 bubio
+
+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 NONINFRINGEMENT. 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.

README.md

@@ -39,12 +39,15 @@ This project aims to provide a lightweight, modern, and cross-platform PC-98 exp
 
 ## License
 
-This project incorporates several open-source components:
+UsaProject is released under the [MIT License](LICENSE).
+
+It also incorporates several open-source components:
 
 *   **NP2kai**: MIT License (AZO)
 *   **Zig**: MIT License
 *   **sokol**: zlib/libpng License
 *   **nativefiledialog-extended**: Zlib License
+*   **M PLUS 1p**: SIL Open Font License 1.1 — Copyright 2016 The M+ Project Authors ([OFL.txt](assets/fonts/OFL.txt))
 
 ## Build
 

build.zig

@@ -273,12 +273,21 @@ pub fn build(b: *std.Build) void {
         cp_icon.step.dependOn(&mkdir.step);
         bundle_step.dependOn(&cp_icon.step);
 
-        // 5. Touch the bundle to refresh Finder cache
+        // 5. Copy the bundled font's OFL license text. M PLUS 1p is embedded in
+        // the binary, so the SIL Open Font License 1.1 + copyright notice must
+        // travel with the distributed .app per the OFL's redistribution terms.
+        const cp_ofl = b.addSystemCommand(&.{ "cp", "assets/fonts/OFL.txt" });
+        cp_ofl.addArg(b.getInstallPath(.prefix, b.fmt("{s}/MPLUS1p-OFL.txt", .{resources_dir})));
+        cp_ofl.step.dependOn(&mkdir.step);
+        bundle_step.dependOn(&cp_ofl.step);
+
+        // 6. Touch the bundle to refresh Finder cache
         const touch = b.addSystemCommand(&.{ "touch" });
         touch.addArg(b.getInstallPath(.prefix, app_name));
         touch.step.dependOn(&cp_exe.step);
         touch.step.dependOn(&cp_plist.step);
         touch.step.dependOn(&cp_icon.step);
+        touch.step.dependOn(&cp_ofl.step);
         bundle_step.dependOn(&touch.step);
     }
 

packaging/nfpm.yaml

@@ -25,6 +25,11 @@ contents:
     dst: /usr/share/applications/usaproject.desktop
   - src: ./assets/AppIcon.png
     dst: /usr/share/pixmaps/usaproject.png
+  # Bundled font's OFL license (M PLUS 1p is embedded in the binary).
+  - src: ./assets/fonts/OFL.txt
+    dst: /usr/share/doc/usaproject/MPLUS1p-OFL.txt
+    file_info:
+      mode: 0644
 
 overrides:
   deb: