{
  description = "borderpoi-rs - GPX administrative border crossing detector";

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

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
        };
      in
      {
        devShells.default = pkgs.mkShell {
          packages = with pkgs; [
            rustc
            cargo
            rustfmt
            clippy
          ];

          shellHook = ''
            echo "borderpoi-rs development environment"
            echo "Rust: $(rustc --version)"
          '';
        };

        packages.default =
          pkgs.rustPlatform.buildRustPackage {
            pname = "borderpoi-rs";
            version = "0.1.0";

            src = ./.;

            cargoLock = {
              lockFile = ./Cargo.lock;
            };

            meta = {
              description =
                "Find administrative border crossings along a GPX track";

              mainProgram =
                "borderpoi-rs";
            };
          };
      }
    );
}