{
  description = "Build deps";

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

  outputs = { nixpkgs, flake-utils, ... }:
    flake-utils.lib.eachDefaultSystem (system:
    let
      pkgs = nixpkgs.legacyPackages.${system};
    in
      with pkgs;
      {
        devShells.default = mkShell {
          buildInputs = [
            libevdev
            openssl
            pkg-config
          ];
        };
      }
    );
}