upgrade system and add wayland shimejis

hosts/default/apps/wl-shimeji.nix

@@ -0,0 +1,28 @@
+{ lib, stdenv, fetchFromGitHub, pkg-config, wayland, waylandProtocols, wlrProtocols, libspng }:
+
+stdenv.mkDerivation rec {
+  pname = "wl_shimeji";
+  version = "1.0.0"; # Change to the appropriate version
+
+  src = fetchFromGitHub {
+    owner = "CluelessCatBurger";
+    repo = "wl_shimeji";
+    rev = "392a83d5658f283ace77b0c839d5a201cebc8784"; # Change to the appropriate commit
+    sha256 = "sha256-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX="; # Put the correct sha256 hash
+  };
+
+  nativeBuildInputs = [ pkg-config wayland waylandProtocols wlrProtocols libspng ];
+
+  buildInputs = [ ];
+
+  installPhase = ''
+    make install PREFIX=$out
+  '';
+
+  meta = with lib; {
+    description = "Shimeji reimplementation for Wayland in C";
+    homepage = "https://github.com/CluelessCatBurger/wl_shimeji";
+    license = licenses.gpl2;
+    maintainers = with maintainers; [ ];
+  };
+}