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

  outputs = { self, nixpkgs, utils, naersk }:
    utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs { inherit system; };
        naersk-lib = pkgs.callPackage naersk { };
      in
      {
        defaultPackage = naersk-lib.buildPackage {
          name = "lepton";
          src = ./.;
          buildInputs = with pkgs; [ asciidoctor ];
          overrideMain = x: x // { 
          postBuild = ''
            for file in doc/*.adoc; do
              asciidoctor -b manpage $file
            done
          '';
          postInstall = ''
            install -Dm644 doc/nucleus.1 $out/share/man/1/nucleus.1
            install -Dm644 doc/intro.1 $out/share/man/5/nucleus.5
          '';
        };
        };

        devShell = with pkgs; mkShell {
          buildInputs = [ cargo rustc rustfmt pre-commit rustPackages.clippy ];
          RUST_SRC_PATH = rustPlatform.rustLibSrc;
        };
      });
}