wip: kvantum theme

packages/kvlibadwaita/default.nix

@@ -0,0 +1,51 @@
+{
+  lib,
+  stdenvNoCC,
+  kvlibadwaita-git,
+  colorScheme ? null,
+}:
+
+stdenvNoCC.mkDerivation {
+  pname = "kvlibadwaita";
+  version = "git";
+
+  # Pulls from the flake-provided git variable
+  src = kvlibadwaita-git;
+
+  # We take the colors as an input but do nothing with them yet per your instructions.
+  # They are passed into the derivation environment just in case, but unused for now.
+  passthru = {
+    inherit colorScheme;
+  };
+
+  # Standard phases are skipped for pure file-copying derivations to save time
+  dontConfigure = true;
+  dontBuild = true;
+
+  installPhase = ''
+    runHook preInstall
+
+    # Recreate the exact requested directory structure in the output
+    mkdir -p $out/src/Colors
+    mkdir -p $out/src/KvLibadwaita
+
+    # Export Colors
+    cp "src/Colors/Libadwaita Dark.colors" "$out/src/Colors/"
+    cp "src/Colors/Libadwaita Light.colors" "$out/src/Colors/"
+
+    # Export KvLibadwaita files
+    cp "src/KvLibadwaita/KvLibadwaita.kvconfig" "$out/src/KvLibadwaita/"
+    cp "src/KvLibadwaita/KvLibadwaita.svg" "$out/src/KvLibadwaita/"
+    cp "src/KvLibadwaita/KvLibadwaitaDark.kvconfig" "$out/src/KvLibadwaita/"
+    cp "src/KvLibadwaita/KvLibadwaitaDark.svg" "$out/src/KvLibadwaita/"
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "Libadwaita theme for Kvantum";
+    homepage = "https://github.com/GabePoel/kvlibadwaita"; # Update if pointing to a specific fork
+    license = licenses.gpl3Only;
+    platforms = platforms.linux;
+  };
+}