add a shell.nix

shell.nix

@@ -0,0 +1,25 @@
+with (import <nixpkgs> {
+  overlays = [
+    (import (fetchTarball "https://github.com/oxalica/rust-overlay/archive/master.tar.gz"))
+  ];
+}); mkShell {
+  buildInputs = [
+    alsa-lib
+    openssl
+    pkg-config
+    (rust-bin.selectLatestNightlyWith (toolchain: toolchain.default.override {
+      extensions = [
+        "rust-analyzer"
+        "rust-src" # for rust-analyzer
+      ];
+      targets = ["wasm32-unknown-unknown"];
+    }))
+    udev
+  ];
+
+  LD_LIBRARY_PATH = "${with pkgs; lib.makeLibraryPath [
+      wayland
+      libxkbcommon
+      vulkan-loader
+  ]}";
+}