{ pkgs, lib, config, ... }:
with pkgs;
with lib;
{

  config = mkMerge [

    (mkIf config.gui.enable {

      home.packages = [

        # general
        unstable.jetbrains.idea-ultimate
        #vscode

        jetbrains.mps

        unstable.jetbrains.datagrip

        # Rust
        # ----
        unstable.jetbrains.clion
        gcc
        rustup

        # Python
        # ------
        unstable.jetbrains.pycharm-professional

        # planing
        ((ganttproject-bin.override {
          jre = pkgs.openjdk11;
        }).overrideAttrs (old: {
          version = "3.1.3100";
          src = pkgs.fetchzip {
            url = "https://dl.ganttproject.biz/ganttproject-3.1.3100/ganttproject-3.1.3100.zip";
            sha256 = "sha256-hw2paak0P670/kemiuqYHIaN0uUtkVKy+AX2X7OdnJ4=";
          };
        }))

        mermaid-cli

      ];
    })
    {


      home.packages =
        let
          pandocScript = { inputFormat, outputFormat }:
            pkgs.writers.writeDashBin "pandoc-from-${inputFormat}-to-${outputFormat}" ''
              ${pkgs.pandoc}/bin/pandoc \
                --from ${inputFormat} \
                --to ${outputFormat} \
                --standalone \
                "$@"
            '';
        in
        [

          lnav

          tmux

          nethogs
          netsniff-ng
          iftop

          # terminal recorder
          asciinema
          asciinema-agg
          asciinema-scenario
          termtosvg

          # shell
          gum
          yq-go
          gojq
          jq
          ijq

          # nomad
          unstable.nomad
          wander

          # terraform
          unstable.terragrunt
          unstable.terraform
          terraform-docs
          awscli2

          # python
          python3Full
          pipenv

          unstable.mdbook

          nodePackages.prettier
          shfmt
          black
          pre-commit
          nixpkgs-fmt
          treefmt


          (pkgs.writers.writeBashBin "ssl-check-cert-of-domain" ''
            DOMAIN=$1
            echo | \
            ${pkgs.openssl}/bin/openssl s_client -servername ''${DOMAIN} -connect ''${DOMAIN}:443 2>/dev/null | \
            ${pkgs.openssl}/bin/openssl x509 -text | \
            ${pkgs.less}/bin/less
          '')


        ] ++ (map pandocScript (lib.cartesianProductOfSets {
          inputFormat = [ "man" "markdown" "mediawiki" "asciidoc" ];
          outputFormat = [ "mediawiki" "docbook5" "html5" "man" "jira" "markdown" ];
        }));

    }
  ];
}