anchor.diff:  
     i3cat = throw "i3cat has been dropped due to the lack of maintanence from upstream since 2016"; # Added 2022-06-02
     iana_etc = throw "'iana_etc' has been renamed to/replaced by 'iana-etc'"; # Converted to throw 2022-02-22
  +  iasl = throw "iasl has been removed, use acpica-tools instead"; # Added 2021-08-08
     ical2org = throw "ical2org has been dropped due to the lack of maintanence from upstream since 2018"; # Added 2022-06-02
     icecat-bin = throw "icecat-bin has been removed, the binary builds are not maintained upstream"; # Added 2022-02-15
  -  icedtea8_web = throw "'icedtea8_web' has been renamed to/replaced by 'adoptopenjdk-icedtea-web'"; # Converted to throw 2022-09-24
  -  icedtea_web = throw "'icedtea_web' has been renamed to/replaced by 'adoptopenjdk-icedtea-web'"; # Converted to throw 2022-09-24
  +  icedtea8_web = adoptopenjdk-icedtea-web; # Added 2019-08-21
  +  icedtea_web = adoptopenjdk-icedtea-web; # Added 2019-08-21
     icu59 = throw "icu59 has been removed, use a more recent version instead"; # Added 2022-05-14
     icu65 = throw "icu65 has been removed, use a more recent version instead"; # Added 2022-05-14
     idea = throw "'idea' has been renamed to/replaced by 'jetbrains'"; # Converted to throw 2022-02-22
     imapproxy = throw "imapproxy has been removed because it did not support a supported openssl version"; # added 2021-12-15
  -  imagemagick7Big = throw "'imagemagick7Big' has been renamed to/replaced by 'imagemagickBig'"; # Converted to throw 2022-09-24
  -  imagemagick7 = throw "'imagemagick7' has been renamed to/replaced by 'imagemagick'"; # Converted to throw 2022-09-24
  -  imagemagick7_light = throw "'imagemagick7_light' has been renamed to/replaced by 'imagemagick_light'"; # Converted to throw 2022-09-24
  +  imagemagick7Big = imagemagickBig; # Added 2021-02-22
  +  imagemagick7 = imagemagick; # Added 2021-02-22
  +  imagemagick7_light = imagemagick_light; # Added 2021-02-22
     impressive = throw "impressive has been removed due to lack of released python 2 support and maintainership in nixpkgs"; # Added 2022-01-27
  +  i-score = throw "i-score has been removed: abandoned upstream"; # Added 2020-11-21
     inboxer = throw "inboxer has been removed as it is no longer maintained and no longer works as Google shut down the inbox service this package wrapped";
     index-fm = libsForQt5.mauiPackages.index; # added 2022-05-17
  -  infiniband-diags = throw "'infiniband-diags' has been renamed to/replaced by 'rdma-core'"; # Converted to throw 2022-09-24
  +  infiniband-diags = rdma-core; # Added 2019-08-09
     ino = throw "ino has been removed from nixpkgs, the project is stuck on python2 and upstream has archived the project"; # Added 2022-01-12
  -  inotifyTools = throw "'inotifyTools' has been renamed to/replaced by 'inotify-tools'"; # Converted to throw 2022-09-24
  +  inotifyTools = inotify-tools;
     intecture-agent = throw "intecture-agent has been removed, because it was no longer maintained upstream"; # added 2021-12-15
     intecture-auth = throw "intecture-auth has been removed, because it was no longer maintained upstream"; # added 2021-12-15
     intecture-cli = throw "intecture-cli has been removed, because it was no longer maintained upstream"; # added 2021-12-15
     interfacer = throw "interfacer is deprecated and archived by upstream"; # Added 2022-04-05
  -  inter-ui = throw "'inter-ui' has been renamed to/replaced by 'inter'"; # Converted to throw 2022-09-24
  +  inter-ui = inter; # Added 2021-03-27
     iops = throw "iops was removed: upstream is gone"; # Added 2022-02-06
     ipfs = kubo; # Added 2022-09-27
     ipfs-migrator-all-fs-repo-migrations = kubo-migrator-all-fs-repo-migrations; # Added 2022-09-27
     ipfs-migrator-unwrapped = kubo-migrator-unwrapped; # Added 2022-09-27
     ipfs-migrator = kubo-migrator; # Added 2022-09-27
  -  iproute = throw "'iproute' has been renamed to/replaced by 'iproute2'"; # Converted to throw 2022-09-24
  +  iproute = iproute2; # moved from top-level 2021-03-14
     iproute_mptcp = throw "'iproute_mptcp' has been moved to https://github.com/teto/mptcp-flake"; # Converted to throw 2022-10-04
     ipsecTools = throw "ipsecTools has benn removed, because it was no longer maintained upstream"; # Added 2021-12-15
     itch-setup = throw "itch-setup has benn removed, use itch instead"; # Added 2022-06-02
  
positive.code:   ping = throw "'ping' does not build with recent valac and has been removed. If you are just looking for the 'ping' command use either 'iputils' or 'inetutils'"; # Added 2022-04-18
    piwik = throw "'piwik' has been renamed to/replaced by 'matomo'"; # Converted to throw 2022-02-22
    pixie = throw "pixie has been removed: abandoned by upstream"; # Added 2022-04-21
    pkgconfig = throw "'pkgconfig' has been renamed to/replaced by 'pkg-config'"; # Converted to throw 2022-09-24
    pkgconfigUpstream = throw "'pkgconfigUpstream' has been renamed to/replaced by 'pkg-configUpstream'"; # Converted to throw 2022-02-22
    pleroma-otp = throw "'pleroma-otp' has been renamed to/replaced by 'pleroma'"; # Converted to throw 2022-09-24
    plexpy = throw "'plexpy' has been renamed to/replaced by 'tautulli'"; # Converted to throw 2022-02-22
    pltScheme = racket; # Added 20218-01-01
    pmtools = throw "'pmtools' has been renamed to/replaced by 'acpica-tools'"; # Converted to throw 2022-02-22
    pocketsphinx = throw "pocketsphinx has been removed: unmaintained"; # Added 2022-04-24
    polarssl = throw "'polarssl' has been renamed to/replaced by 'mbedtls'"; # Converted to throw 2022-02-22
  
negative.code:   networkmanager_openconnect = throw "'networkmanager_openconnect' has been renamed to/replaced by 'networkmanager-openconnect'"; # Converted to throw 2022-02-22
    networkmanager_openvpn = throw "'networkmanager_openvpn' has been renamed to/replaced by 'networkmanager-openvpn'"; # Converted to throw 2022-02-22
    networkmanager_vpnc = throw "'networkmanager_vpnc' has been renamed to/replaced by 'networkmanager-vpnc'"; # Converted to throw 2022-02-22
    neutral-style = throw "neural-style has been removed, as the upstream project has been abandoned"; # Added 2020-03-28
    nfsUtils = throw "'nfsUtils' has been renamed to/replaced by 'nfs-utils'"; # Converted to throw 2022-02-22
    nginxUnstable = throw "'nginxUnstable' has been renamed to/replaced by 'nginxMainline'"; # Converted to throw 2022-02-22
    nilfs_utils = throw "'nilfs_utils' has been renamed to/replaced by 'nilfs-utils'"; # Converted to throw 2022-02-22
    nix-direnv-flakes = nix-direnv;
    nix-review = nixpkgs-review; # Added 2019-12-22
    nixFlakes = nixVersions.stable; # Added 2021-05-21
    nixStable = nixVersions.stable; # Added 2022-01-24
    nixUnstable = nixVersions.unstable; # Added 2022-01-26
    nix_2_3 = nixVersions.nix_2_3;
    nix_2_4 = nixVersions.nix_2_4;
    nix_2_5 = nixVersions.nix_2_5;
    nix_2_6 = nixVersions.nix_2_6;
    nixopsUnstable = nixops_unstable; # Added 2022-03-03
    nixosTest = testers.nixosTest; # Added 2022-05-05
    nixui = throw "nixui has been removed from nixpkgs, due to the project being unmaintained"; # Added 2022-05-23
    nmap-unfree = nmap; # Added 2021-04-06
    nmap-graphical = throw "nmap graphical support has been removed due to its python2 dependency"; # Added 2022-04-26
    nmap_graphical = throw "nmap graphical support has been removed due to its python2 dependency"; # Modified 2022-04-26
    nodejs-10_x = throw "nodejs-10_x has been removed. Use a newer version instead."; # Added 2022-05-31
    nodejs-12_x = throw "nodejs-12_x has been removed. Use a newer version instead."; # Added 2022-07-04
    nologin = throw "'nologin' has been renamed to/replaced by 'shadow'"; # Converted to throw 2022-02-22
    nomad_1_1 = throw "nomad_1_1 has been removed because it's outdated. Use a a newer version instead"; # Added 2022-05-22
    nordic-polar = throw "nordic-polar was removed on 2021-05-27, now integrated in nordic"; # Added 2021-05-27
    noto-fonts-cjk = noto-fonts-cjk-sans; # Added 2021-12-16
    nottetris2 = throw "nottetris2 was removed because it is unmaintained by upstream and broken"; # Added 2022-01-15
    now-cli = throw "now-cli has been replaced with nodePackages.vercel"; # Added 2021-08-05
    ntdb = throw "ntdb has been removed: abandoned by upstream"; # Added 2022-04-21
    nxproxy = throw "'nxproxy' has been renamed to/replaced by 'nx-libs'"; # Converted to throw 2022-02-22
  
  