{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs = { self, nixpkgs }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs {
        inherit system;
        config.allowUnfree = true;
      };
    in
    {
      devShells.${system}.default = pkgs.mkShell {
        buildInputs = with pkgs; [
          rust-analyzer
          openssl
          pkg-config
        ];
        PKG_CONFIG_PATH = "${pkgs.openssl.dev}/lib/pkgconfig";
      };
    };
}