self: super: {
  # pkgs assumed to be present on a non nixos host
  core-system-pkgs = {
    inherit
      (self)
      gitFull
      gnumake
      mkpasswd
      file
      wget
      curl
      wireguard-tools
      gnupg
      mutt
      bind
      liboping
      psmisc
      unzip
      rename
      whois
      lsof
      parted
      python3
      binutils
      ntfsprogs
      neovim
      ventoy-bin
      ;
  };

  extra-system-pkgs = {
    inherit (self.python3Packages) qrcode;
    inherit
      (self)
      htop
      helix
      btop
      tree
      pwgen
      borgbackup
      inotifyTools
      direnv
      socat
      nmap
      ncdu
      tcpdump
      tmux
      tig
      exa
      fzf
      fd
      bat
      ripgrep
      ranger
      pass
      sshuttle
      vnstat
      entr
      libargon2
      mblaze
      niv
      compsize
      mediainfo
      asciinema
      gomuks
      nix-output-monitor
      fdroidserver
      jq
      cachix
      nixFlakes
      ;
  };

  my-home-pkgs = {
    print215 = super.writeShellScriptBin "print215" ''
      scp "$@" ag-forward:
      ssh ag-forward lpr -Zduplex -r "$@"
    '';
    print215single = super.writeShellScriptBin "print215single" ''
      scp "$@" ag-forward:
      ssh ag-forward lpr -r "$@"
    '';
    mytmux = super.writeShellScriptBin "mytmux" ''
      session=$(${self.tmux}/bin/tmux ls | grep -v attached | head -1 | cut -f1 -d:)
      if [[ -n $session ]]; then
         exec ${self.tmux}/bin/tmux attach -t $session;
      else
         exec ${self.tmux}/bin/tmux;
      fi
    '';
  };
  desktop-pkgs = {
    inherit
      (self)
      esphome
      # To flash devices
      esptool
      # provides esptool.py
      dconf
      lm_sensors
      xwayland
      xdg_utils
      libnotify
      kassandra
      shotcut
      mlt
      audacity
      paprefs
      wl-clipboard
      dconf2nix
      chrysalis
      ;
    executor = self.gnomeExtensions.executor.overrideAttrs (old: {
      postInstall =
        (old.postInstall or "")
        + ''
          substituteInPlace $out/share/gnome-shell/extensions/executor@raujonas.github.io/extension.js --replace "'/bin/bash'" "'bash'"
        '';
    });
    inherit
      (self.gnome)
      dconf-editor
      gnome-tweaks
      adwaita-icon-theme
      gnome-session
      ;
  };
  home-pkgs = {
    inherit
      (self)
      go
      gdb
      mpc_cli
      ncmpcpp
      shfmt
      astyle
      nodejs
      tasksh
      magic-wormhole
      alejandra
      rustup
      nix-top
      ghcWithPackages
      ghcid
      matrix-commander
      upterm
      lazygit
      gh
      ;
    pass-fzf = self.writeShellScriptBin "pass-fzf" (builtins.readFile ./pass-fzf.sh);
  };
  accounting-pkgs = {
    inherit (self.haskellPackages) hledger hledger-ui hledger-web;
    inherit (self) ledger aqbanking;
  };
  system-pkgs =
    self.core-system-pkgs
    // self.extra-system-pkgs
    // {
      home-manager =
        self.callPackage "${self.sources."${self.home-manager-channel}"}/home-manager" {};
    };
  foreign-home-pkgs = self.extra-system-pkgs;
}