Add nix shell

README.md

@@ -108,12 +108,9 @@ sudo apt install qemu-system-aarch64 wget jq e2fsprogs just
 brew install qemu wget jq e2fsprogs just
 ```
 
-#### NixOS
-
-Run the following command:
-
+#### Nix/NixOS
 ```bash
-nix shell nixpkgs#pkgsCross.aarch64-embedded.stdenv.cc nixpkgs#pkgsCross.aarch64-embedded.stdenv.cc.bintools
+nix develop
 ```
 
 ### Running via QEMU

flake.nix

@@ -0,0 +1,37 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    fenix.url = "github:nix-community/fenix";
+    fenix.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = { self, nixpkgs, fenix, flake-utils }:
+    flake-utils.lib.eachDefaultSystem(system:
+      let
+        pkgs = import nixpkgs { inherit system; };
+        toolchain = fenix.packages.${system}.fromToolchainFile {
+          file = ./rust-toolchain.toml;
+          sha256 = "sha256-ggvRZZFjlAlrZVjqul/f/UpU5CEhDbdKZU0OCR8Uzbc=";
+        };
+        shell = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            dosfstools
+            e2fsprogs
+            just
+            jq
+            pkg-config
+            python3
+            pkgsCross.aarch64-embedded.stdenv.cc
+            pkgsCross.aarch64-embedded.stdenv.cc.bintools
+            qemu
+            toolchain
+            minicom
+            wget
+          ];
+        };
+      in
+      {
+        devShells.default = shell;
+      });
+}