feat: init

flake.nix

@@ -0,0 +1,32 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    fenix.url = "github:nix-community/fenix";
+    fenix.inputs.nixpkgs.follows = "nixpkgs";
+  };
+  outputs = { nixpkgs, fenix, ... }:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs { inherit system; };
+    in
+    {
+      formatter.${system} = pkgs.nixpkgs-fmt;
+      devShells.${system}.default = pkgs.mkShell {
+        packages = with pkgs; [
+          zsh
+          (fenix.packages.${system}.complete.withComponents [
+            "cargo"
+            "clippy"
+            "rust-src"
+            "rustc"
+            "rustfmt"
+            "rust-analyzer"
+          ])
+        ];
+        shellHook = ''
+          zsh & disown
+          exit
+        '';
+      };
+    };
+}