feat: add build workflow

.forgejo/workflows/build.yml

@@ -15,12 +15,19 @@ jobs:
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@v14
 
+      - name: Setup Cachix
+        uses: cachix/cachix-action@v15
+        with:
+          name: uku3lig
+          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
+
       - name: Build
         run: |
           nix run \
             github:Mic92/nix-fast-build -- \
             --no-nom \
             --skip-cached \
+            --systems 'x86_64-linux'
             --option accept-flake-config true \
             --option allow-import-from-derivation false \
             --flake '.#packages'

pkgs/koi.nix

@@ -1,4 +1,5 @@
 {
+  lib,
   stdenv,
   fetchFromGitHub,
   cmake,
@@ -25,4 +26,9 @@ stdenv.mkDerivation (finalAttrs: {
 
   nativeBuildInputs = [cmake ninja wrapQtAppsHook];
   buildInputs = [qtbase qtwayland kcoreaddons kwidgetsaddons kconfig];
+
+  meta = {
+    mainProgram = "koi";
+    platforms = lib.platforms.linux;
+  };
 })