{
  pkgs,
  lib,
  config,
  ...
}: {
  home.packages = [
    # preview markdown
    pkgs.python3Packages.grip

    # For nix contribution
    pkgs.gh
    pkgs.nixfmt-rfc-style
    pkgs.nix-doc
    pkgs.nixpkgs-review
    pkgs.shellcheck

    pkgs.lua-language-server
    pkgs.stylua                  # lua
    pkgs.nil                     # nix
    pkgs.fish-lsp                # fish
    pkgs.pyright                 # python
    pkgs.taplo                   # toml
    pkgs.vscode-langservers-extracted # JSON etc
    pkgs.yaml-language-server    # yaml
  ];

  programs.git = {
    enable = true;
    signing.signByDefault = true;
    maintenance = {
      enable = true;
      repositories =
        lib.map (path: config.home.homeDirectory + "/${path}")
        [
          "r/nixos/nixpkgs"
        ];
    };
  };

  programs.gpg.enable = true;

  # programs.vscode = {
  #   enable = true;
  #   profiles.default.extensions = [
  #     pkgs.vscode-extensions.redhat.java
  #     pkgs.vscode-extensions.vscjava.vscode-java-pack
  #   ];
  # };

  # ghc.nix cache
  nix = {
    settings = {
      extra-substituters = ["https://ghc-nix.cachix.org"];
      extra-trusted-public-keys = ["ghc-nix.cachix.org-1:ziC/I4BPqeA4VbtOFpFpu6D1t6ymFvRWke/lc2+qjcg="];
    };
  };
}