anchor.diff:    tahoelafs = throw "'tahoelafs' has been renamed to/replaced by 'tahoe-lafs'"; # Converted to throw 2022-02-22
     tangogps = foxtrotgps; # Added 2020-01-26
     tdm = throw "tdm has been removed because nobody can figure out how to fix OpenAL integration. Use precompiled binary and `steam-run` instead";
  +  teleconsole = throw "teleconsole is archived by upstream"; # Added 2022-04-05
     telepathy-qt = throw "telepathy-qt no longer supports Qt 4. Please use libsForQt5.telepathy instead"; # Added 2020-07-02
     telepathy_farstream = throw "'telepathy_farstream' has been renamed to/replaced by 'telepathy-farstream'"; # Converted to throw 2022-02-22
     telepathy_gabble = throw "'telepathy_gabble' has been renamed to/replaced by 'telepathy-gabble'"; # Converted to throw 2022-02-22
  
positive.code:   proglodyte-wasm = throw "proglodyte-wasm has been removed from nixpkgs, because it is unmaintained since 5 years with zero github stars"; # Added 2021-06-30
    proj_5 = throw "Proj-5 has been removed from nixpkgs, use proj instead"; # Added 2021-04-12
    prometheus-cups-exporter = throw "outdated and broken by design; removed by developer"; # Added 2021-03-16
    proxytunnel = throw "proxytunnel has been removed from nixpkgs, because it has not been update upstream since it was added to nixpkgs in 2008 and has therefore bitrotted."; # added 2021-12-15
    pulseaudioLight = throw "'pulseaudioLight' has been renamed to/replaced by 'pulseaudio'"; # Converted to throw 2022-02-22
    pulseeffects = throw "Use pulseeffects-legacy if you use PulseAudio and easyeffects if you use PipeWire"; # Added 2021-02-13
  
negative.code:   compton-git = throw "'compton-git' has been renamed to/replaced by 'compton'"; # Converted to throw 2022-02-22
    concurrencykit = libck; # Added 2021-03
    conntrack_tools = throw "'conntrack_tools' has been renamed to/replaced by 'conntrack-tools'"; # Converted to throw 2022-02-22
    container-linux-config-transpiler = throw "container-linux-config-transpiler is deprecated and archived by upstream"; # Added 2022-04-05
    cool-old-term = throw "'cool-old-term' has been renamed to/replaced by 'cool-retro-term'"; # Converted to throw 2022-02-22
    corsmisc = throw "corsmisc has been removed (upstream is gone)"; # Added 2022-01-24
    couchdb = throw "couchdb was removed from nixpkgs, use couchdb3 instead"; # Added 2021-03-03
  