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

  outputs = inputs:
    with inputs;
    utils.lib.eachDefaultSystem (system:
      let
        overlays = [ (import rust-overlay) ];
        pkgs = import nixpkgs {
          inherit system overlays;
        };
        naersk-lib = pkgs.callPackage naersk { };
        nbi = with pkgs; [

          (rust-bin.selectLatestNightlyWith (toolchain: toolchain.default.override {
            extensions = [ "rust-src" "rust-analyzer" "clippy" ];
          }))
          cargo-nextest
          cargo-criterion
          pkg-config
          sccache
        ];

        bi = with pkgs; [
          just
          cargo-watch
          samply
        ];
      in
      {
        defaultPackage = naersk-lib.buildPackage ./.;
        devShell = with pkgs; mkShell {
          nativeBuildInputs = nbi;
          buildInputs = bi;

          RUST_SRC_PATH = rustPlatform.rustLibSrc;
        };
      }
    );
}