{
  config,
  lib,
  pkgs,
  ...
}:
let
  inherit (lib.meta) getExe;

  toml = pkgs.formats.toml { };
  jj-config = toml.generate "config.toml" {
    user = {
      name = "Bloxx12";
      email = "charlie@charlieroot.dev";
    };

    ui = {
      pager = [
        "${getExe pkgs.bat}"
        "--plain"
      ];
      default-command = "log";
      movement.edit = true;

      diff.tool = [
        "${getExe pkgs.difftastic}"
        "--color"
        "always"
        "$left"
        "$right"
      ];
    };
    # FIXME: do this with agenix
    # "--scope" = [
    #   {
    #     "--when.repositories" = ["~/repos/projects/uni"];
    #     user = {
    #       # TODO
    #       name = "";
    #       email = "";
    #     };
    #   }
    #   {
    #     "--when.repositories" = ["~/repos/projects/uni/"];
    #     user = {
    #       # TODO
    #       name = "";
    #       email = "";
    #     };
    #   }
    # ];
    git.push-new-bookmarks = true;

    signing = {
      behaviour = "own";
      backend = "ssh";
      key = [
        "ecdsa-sha2-nistp521 AAAAE2VjZHNhLXNoYTItbmlzdHA1MjEAAAAIbmlzdHA1MjEAAACFBAAWEDj/Yib6Mqs016jx7rtecWpytwfVl28eoHtPYCM9TVLq81VIHJSN37lbkc/JjiXCdIJy2Ta3A3CVV5k3Z37NbgAu23oKA2OcHQNaRTLtqWlcBf9fk9suOkP1A3NzAqzivFpBnZm3ytaXwU8LBJqxOtNqZcFVruO6fZxJtg2uE34mAw=="
      ];
    };

    aliases = {
      c = [ "commit" ];
      ci = [
        "commit"
        "--interactive"
      ];

      e = [ "edit" ];

      # "new bookmark"
      nb = [
        "bookmark"
        "create"
        "-r @-"
      ];

      pull = [
        "git"
        "fetch"
      ];
      push = [
        "git"
        "push"
        "--allow-new"
      ];

      r = [ "rebase" ];
      s = [ "squash" ];
      si = [
        "squash"
        "--interactive"
      ];

      tug = [
        "bookmark"
        "move"
        "--from"
        "closest_bookmark(@-)"
        "--to"
        "@-"
      ];
    };
    revset-aliases = {
      "closest_bookmark(to)" = "heads(::to & bookmarks())";
    };

    templates = {
      draft_commit_description = ''
        concat(
          coalesce(description, "\n"),
          surround(
            "\nJJ: This commit contains the following changes:\n", "",
            indent("JJ:     ", diff.stat(72)),
          ),
          "\nJJ: ignore-rest\n",
          diff.git(),
        )
      '';
    };
    template-aliases = {
      "format_short_id(id)" = "id.shortest()";
    };
  };

  jj-wrapped = pkgs.symlinkJoin {
    name = "jj-wrapped";
    paths = [ pkgs.jj ];
    nativeBuildInputs = [ pkgs.makeWrapper ];
    postBuild = ''
      wrapProgram $out/bin/mako --add-flags "\
      --config ${jj-config}

    '';
  };
in
{
  # environment.systemPackages = [jj-wrapped];
}