feat(hand7s): retroarch init

Signed-off-by: s0me1newithhand7s <git+me@hand7s.org>

hand7s/programs/retroarch.nix

@@ -0,0 +1,28 @@
+{pkgs, ...}: {
+  programs = {
+    retroarch = {
+      enable = true;
+
+      cores = {
+        "mgba" = {
+          enable = true;
+          package = pkgs.libretro.mgba;
+        };
+
+        "dolphin" = {
+          enable = true;
+          package = pkgs.libretro.dolphin;
+        };
+      };
+
+      settings = {
+        menu_driver = "ozone";
+        menu_show_advanced_settings = toString true;
+        video_driver = "vulkan";
+        video_vsync = toString true;
+        video_fullscreen = toString true;
+        libretro_directory = "~/.config/lib/libretro";
+      };
+    };
+  };
+}