anchor.diff:      zotero # reference management (GUI)
   
       # General:
  +    audacity
       byzanz scrot # screen capture
       gparted # disk partitioner (GUI)
       imagemagick # bitmap image editor
       man-pages # linux man-pages
       mediainfo # multimedia info
       mkvtoolnix # matroska tools (GUI)
  -    nextcloud-client # cloud storage client (GUI)
       pandoc # markup converter
       rxvt_unicode-with-plugins # terminal emulator
       sshfs # remote filesystem mounter
  
positive.code:     dos2unix  # line break converter
      file      # file info
      inetutils # network utilities
      p7zip # 7-Zip archive tools
      psmisc lsof # process utilities
      qrencode # QR code encoder
      trash-cli # trash can
      tree # depth-indented directory listing
      unrar # rar archive tools
      usbutils # USB device tools
      curl wget youtube-dl # downloaders
      xorg.xev # X event monitor
      xorg.xwininfo # X window info
      zip unzip # zip archive tools
  
      # Development
      adoptopenjdk-hotspot-bin-11
      jetbrains.idea-ultimate # IDE (GUI) (UNFREE)
      python3 # programming language (TODO development dependency)
      universal-ctags # source code indexer (TODO Vim tagbar dependency)
      # rustc cargo # TODO nixify Rust projects
      # gnumake # TODO nixify projects
      # nixops # TODO nixify NixOps projects
      # jdk8 # TODO nixify Java projects
  
      # Security
      coq # proof assistant (GUI) # TODO nixify projects
      gnupg # openpgp
      pass # password manager
      tomb # storage file encryption
  
      # Textual applications
      dict # dictionary client
      diction # english linter
      libqalculate # calculator
      ranger # file manager
  
      # Graphical applications
      anki  # flashcards (GUI)
      calibre # e-book manager (GUI)
      hexchat # IRC client (GUI)
      insomnia # REST API client (GUI)
      qalculate-gtk # calculator (GUI)
      qbittorrent # bittorrent client (GUI)
      signal-desktop # messaging client (GUI)
      skype # VoIP client (UNFREE) (GUI)
      slack # chat client (GUI) (UNFREE)
  
negative.code:     xclip xsel # X clipboard console support
      xdg-user-dirs
      xdg_utils
      xxd # create or reverse hexdumps
    ];
  }
  