lol

hosts/nishimiya.nix

@@ -128,6 +128,14 @@
   environment.systemPackages = with pkgs; [
     ansible
     gnumake
+
+      (pkgs.callPackage ./wrapper.nix {
+        inherit (pkgs) retroarch;
+        cores = with pkgs.libretro; [
+          mgba mupen64plus melonds desmume dolphin
+        ];
+      })
+
   ];
   
   programs = {

hosts/wrapper.nix

@@ -0,0 +1,37 @@
+{ stdenv, lib, makeWrapper, retroarch, cores ? [ ] }:
+
+stdenv.mkDerivation {
+  pname = "retroarch";
+  version = lib.getVersion retroarch;
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  buildCommand = ''
+    mkdir -p $out/lib
+    for coreDir in $cores
+    do
+      ln -s $coreDir/* $out/lib/.
+    done
+
+    ln -s -t $out ${retroarch}/share
+
+    if [ -d ${retroarch}/Applications ]; then
+      ln -s -t $out ${retroarch}/Applications
+    fi
+
+    makeWrapper ${retroarch}/bin/retroarch $out/bin/retroarch \
+      --suffix-each LD_LIBRARY_PATH ':' "$cores" \
+      --add-flags "-L $out/lib/" \
+  '';
+
+  cores = map (x: x + x.libretroCore) cores;
+  preferLocalBuild = true;
+
+  meta = with retroarch.meta; {
+    inherit changelog description homepage license maintainers platforms;
+    longDescription =
+      "RetroArch is the reference frontend for the libretro API. The following cores are included: "
+      + lib.concatStringsSep ", " (map (x: "${x.name}") cores)
+      + ".";
+  };
+}