{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
    rust-overlay = {
      url = "github:oxalica/rust-overlay";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    flake-parts.url = "github:hercules-ci/flake-parts";
  };

  outputs =
    {
      nixpkgs,
      rust-overlay,
      flake-parts,
      ...
    }@inputs:
    flake-parts.lib.mkFlake { inherit inputs; } {
      systems = [ "x86_64-linux" ];

      perSystem =
        { system, ... }:
        let
          overlays = [ (import rust-overlay) ];
          pkgs = import nixpkgs { inherit system overlays; };
        in
        {
          packages.default = pkgs.rust-bin.stable.latest.cargo;

          devShells.default =
            with pkgs;
            mkShell {
              buildInputs = [
                rust-bin.stable.latest.default

                cargo-expand
                cargo-nextest
                just
              ];
            };
        };
    };
}