nix: initial tooling

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I5201e2b745fec2d5d6806693b5243d4e6a6a6964

nix/package.nix

@@ -0,0 +1,29 @@
+{
+  lib,
+  rustPlatform,
+}:
+rustPlatform.buildRustPackage (finalAttrs: {
+  pname = "beer";
+  version = "0.0.0";
+
+  src = let
+    fs = lib.fileset;
+    s = ../.;
+  in
+    fs.toSource {
+      root = s;
+      fileset = fs.unions [
+        (fs.fileFilter (file: builtins.any file.hasExt ["rs"]) (s + /src))
+        (s + /Cargo.lock)
+        (s + /Cargo.toml)
+      ];
+    };
+
+  cargoLock.lockFile = "${finalAttrs.src}/Cargo.lock";
+  enableParallelBuilding = true;
+
+  meta = {
+    maintainers = with lib.maintainers; [NotAShelf];
+    mainProgram = "beer";
+  };
+})

nix/shell.nix

@@ -0,0 +1,52 @@
+{
+  mkShell,
+  rustc,
+  cargo,
+  rust-analyzer,
+  rustfmt,
+  clippy,
+  taplo,
+  cargo-deny,
+  pkg-config,
+  wayland,
+  wayland-protocols,
+  wayland-scanner,
+  libxkbcommon,
+  freetype,
+  fontconfig,
+  harfbuzz,
+}:
+mkShell {
+  name = "rust";
+
+  strictDeps = true;
+  nativeBuildInputs = [
+    cargo
+    rustc
+    clippy
+    rustfmt
+    rustc
+    cargo
+
+    # Tools
+    rustfmt
+    clippy
+    cargo
+    taplo
+
+    # LSP
+    rust-analyzer
+    cargo-deny
+    pkg-config
+  ];
+
+  buildInputs = [
+    wayland
+    wayland-protocols
+    wayland-scanner
+    libxkbcommon
+    freetype
+    fontconfig
+    harfbuzz
+  ];
+}