{ config, pkgs, ... }:

let
  unstable = import <unstable> {};
  emacsWithImagemagick = (unstable.emacs.override {
    srcRepo = true;
    imagemagick = unstable.imagemagickBig;
  });
  nixpkgs-tars = "https://github.com/NixOS/nixpkgs/archive/";
in {
  nixpkgs.config = {
    allowUnfree = true;
    packageOverrides = pkgs: {
      pr64977 = import (pkgs.fetchzip {
          url = "${nixpkgs-tars}7da8de19b1f394c92f27b8d953b85cfce1770427.zip";
          sha256 = "1bc6lg8p8r8sw49vzprzkyvwvm9j8qndbdlj792djkqkvkrpzzka";
        }) {
        config = config.nixpkgs.config;
      };
    };
  };

  programs.zsh.enable = true;
  programs.browserpass.enable = true;
  programs.adb.enable = true;

  programs.java = {
    enable = true;
    package = unstable.pkgs.jdk11;
  };

  services.ntp.enable = true;
  services.tlp.enable = true;
  services.vnstat.enable = true;

  virtualisation.docker.enable = true;

  virtualisation.libvirtd = {
    enable = true;
    qemuVerbatimConfig = ''
      namespaces = []
      user = "user"
      group = "users"
    '';
  };

  services.tor.enable = true;
  services.tor.client.enable = true;

  environment.systemPackages = with pkgs; [
    # nix
    patchelfUnstable nix-index
    appimage-run

    # utils
    wget tmux zsh vim htop acpi bc p7zip mpv
    git pass unzip zip w3m whois dnsutils feh
    parted iotop nmap tldr sshfs pinentry_ncurses
    oathToolkit neomutt pciutils easyrsa openvpn
    lsof tcpdump ddcutil pmount woeusb tigervnc
    file mkpasswd irssi heroku hdparm debootstrap
    proot fakeroot fakechroot lm_sensors powertop
    exfat traceroute graphicsmagick-imagemagick-compat
    pdftk vnstat dunst ghostscript graphicsmagick
    browsh texlive.combined.scheme-full rubber pandoc
    jq socat ffmpeg-full

    # gpg-related
    gnupg unstable.yubikey-manager unstable.yubikey-personalization

    # virtualization
    nixops
    kvm
    virtmanager
    virtviewer
    spice
    spice-gtk

    # temporary
    pr64977.telega-server

    (python3.withPackages(ps: with ps; [
      ipython
      pillow opencv3 torchvision
      # elpy
      autopep8 jedi yapf black flake8 rope
    ]))

    ((unstable.emacsPackagesNgGen emacsWithImagemagick).emacsWithPackages(epkgs:
      # MELPA (Milkypostman’s Emacs Lisp Package Archive)
      (with epkgs.melpaPackages; [
        # Programming languages modes
        haskell-mode rust-mode scala-mode csharp-mode d-mode
        solidity-mode php-mode go-mode elpy
        # Development
        helm-gtags slime xcscope go-autocomplete
        # Configuration languages modes
        nix-mode markdown-mode dockerfile-mode yaml-mode ssh-config-mode
        toml-mode pcap-mode
        # Version control
        magit git-gutter
        # Generic
        smex w3m exec-path-from-shell org-kanban
        # Appearance
        zenburn-theme solarized-theme
      ])
      ++
      # GNU Elpa
      (with epkgs.elpaPackages; [
        # Programming languages modes
        cobol-mode
      ])
      ++
      # Custom packaged
      [
        ((unstable.emacsPackagesNgFor emacsWithImagemagick).melpaBuild {
          pname = "telega";
          ename = "telega";
          recipe = fetchurl {
            url = "https://raw.githubusercontent.com/melpa/melpa/master/recipes/telega";
            sha256 = "0n1n1fciwh7jbakdjkx36aq6k0is0c694j3n5dicwvfp7spca7p8";
            name = "recipe";
          };
          version = "0.4.0";
          src = fetchFromGitHub {
            owner  = "zevlg";
            repo   = "telega.el";
            rev    = "0.4.0";
            sha256 = "1a5fxix2zvs461vn6zn36qgpg65bl38gfb3ivr24wmxq1avja5s1";
          };
        })
      ]
      ))

    # dev
    go gnumake gcc clang clang-analyzer global
    maven binutils-unwrapped openssl bison flex fop libxslt
    cmake manpages unstable.gradle cargo rustc guile hydra
    gitRepo rustfmt bazel ghc zlib gperf ccache opencv gotools

    # re
    radare2 radare2-cutter

    # x render
    vdpauinfo

    cm_unicode

    # base x
    rofi xlibs.xmodmap ubuntu_font_family i3lock unstable.kitty
    libnotify gtk_engines x2x
    pulsemixer arc-theme xorg.xhost xclip
    gnome3.dconf gnome3.dconf-editor gsettings-desktop-schemas gsettings-qt
    xorg.xcursorthemes capitaine-cursors gnome3.cheese

    # x apps
    unstable.chromium escrotum unstable.wire-desktop ssvnc tightvnc
    quaternion veracrypt evince krita gimp gnome3.gnome-maps
    android-file-transfer darktable xournal gnome3.eog audacious audacity
    matrique unstable.libreoffice electrum adobe-reader unstable.wireshark lmms
    unstable.firefox unstable.stellarium

    (writeShellScriptBin "torbrowser" "${unstable.tor-browser-unwrapped}/bin/firefox")

    (writeShellScriptBin "git-get" "${git}/bin/git clone https://$1 $GOPATH/src/$1")
  ];
}