These are the GNOME core apps but there are some other programs installed when GNOME is enabled.
Some services enabled by core-os-services can be disabled:
hardware.bluetooth.enable = mkDefault true;
hardware.pulseaudio.enable = mkDefault true;
programs.dconf.enable = true;
security.polkit.enable = true;
services.accounts-daemon.enable = true;
services.dleyna-renderer.enable = mkDefault true;
services.dleyna-server.enable = mkDefault true;
services.power-profiles-daemon.enable = mkDefault true;
services.gnome.at-spi2-core.enable = true;
services.gnome.evolution-data-server.enable = true;
services.gnome.gnome-keyring.enable = true;
services.gnome.gnome-online-accounts.enable = mkDefault true;
services.gnome.gnome-online-miners.enable = true;
services.gnome.tracker-miners.enable = mkDefault true;
services.gnome.tracker.enable = mkDefault true;
services.hardware.bolt.enable = mkDefault true;
services.udisks2.enable = true;
services.upower.enable = config.powerManagement.enable;
services.xserver.libinput.enable = mkDefault true; # for controlling touchpad settings via gnome control center
networking.networkmanager.enable = mkDefault true;
services.colord.enable = mkDefault true;
services.gnome.glib-networking.enable = true;
services.gnome.gnome-browser-connector.enable = mkDefault true;
services.gnome.gnome-initial-setup.enable = mkDefault true;
services.gnome.gnome-remote-desktop.enable = mkDefault true;
services.gnome.gnome-settings-daemon.enable = true;
services.gnome.gnome-user-share.enable = mkDefault true;
services.gnome.rygel.enable = mkDefault true;
services.gvfs.enable = true;
services.system-config-printer.enable = (mkIf config.services.printing.enable (mkDefault true));
services.avahi.enable = mkDefault true;
services.geoclue2.enable = mkDefault true;
Some other apps can be excluded:
with pkgs.gnome; [
adwaita-icon-theme
# nixos-background-info This can't be excluded since it's defined locally. So even if we removed all GNOME backgrounds it seems we have to keep the NixOS one.
gnome-backgrounds
gnome-bluetooth
gnome-color-manager
gnome-control-center
gnome-shell-extensions
gnome-themes-extra
pkgs.gnome-tour # GNOME Shell detects the .desktop file on first log-in.
pkgs.gnome-user-docs
pkgs.orca
pkgs.glib # for gsettings program
pkgs.gnome-menus
pkgs.gtk3.out # for gtk-launch program
pkgs.xdg-user-dirs # Update user dirs as described in https://freedesktop.org/wiki/Software/xdg-user-dirs/
baobab
epiphany
pkgs.gnome-text-editor
gnome-calculator
gnome-calendar
gnome-characters
gnome-clocks
pkgs.gnome-console
gnome-contacts
gnome-font-viewer
gnome-logs
gnome-maps
gnome-music
gnome-system-monitor
gnome-weather
pkgs.loupe
nautilus
pkgs.gnome-connections
simple-scan
pkgs.snapshot
totem
yelp
];
By the way, I don’t know why pkgs.gnome.gnome-shell-extensions is added twice in https://github.com/NixOS/nixpkgs/blob/a8f393e6c1c80dc979e9209eea9eb4b75833df70/nixos/modules/services/x11/desktop-managers/gnome.nix.
After disabling many unused apps looks like GNOME still works well, except that the control center has some issues. After disabling gnome-online-accounts, the corresponding panel has no icons anymore. And the sharing panel freezes the program. It seems I can disable the panel by removing the corresponding desktop files but I don’t know how to do that without patching and rebuild the control center.