{
  description = "RISC-V 32-bits CPU Emulator";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    rust-overlay.url = "github:oxalica/rust-overlay";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = {self, nixpkgs, rust-overlay, flake-utils, ...}:
    flake-utils.lib.eachDefaultSystem (system:
      let 
        overlays = [ (import rust-overlay) ];
        pkgs = import nixpkgs {
          inherit system overlays;
        };
      in
      with pkgs;
      {
        devShells.default = mkShell {
          buildInputs = [
            (
              rust-bin.stable.latest.default.override {
                extensions = [ "rust-src" ]; 
              }
            )
          ];

          packages = with pkgs; [
            rust-analyzer
            rustfmt
            gdb
          ];
        };  
      }
    );
}