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nix-configuration/modules/ui/desktops/gnome.nix

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# Enables the Gnome desktop environment.
{
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inputs,
pkgs,
config,
lib,
...
}:
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let
cfg = config.aux.system.ui.desktops.gnome;
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in
{
options = {
aux.system.ui.desktops.gnome = {
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enable = lib.mkEnableOption "Enables the Gnome Desktop Environment.";
experimental = {
fractionalScaling.enable = lib.mkEnableOption "Enables fractional scaling.";
tripleBuffering.enable = lib.mkEnableOption "Enables dynamic triple buffering for xwayland applications.";
vrr.enable = lib.mkEnableOption "Enables variable refresh rate (VRR).";
};
};
};
config = lib.mkIf cfg.enable {
aux.system.ui.desktops.enable = true;
# Enable Gnome
services = {
xserver = {
# Remove default packages that came with the install
excludePackages = [ pkgs.xterm ];
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# Enable Gnome
desktopManager.gnome = {
enable = true;
# Enable experimental features
extraGSettingsOverrides = ''
[org.gnome.mutter]
experimental-features = ${
lib.strings.concatStrings [
"[ "
(lib.mkIf cfg.experimental.fractionalScaling.enable "'scale-monitor-framebuffer', ").content
(lib.mkIf cfg.experimental.vrr.enable "'variable-refresh-rate'").content
" ]"
]
}
'';
extraGSettingsOverridePackages = lib.mkIf (
cfg.experimental.fractionalScaling.enable || cfg.experimental.vrr.enable
) [ pkgs.gnome.mutter ];
};
displayManager.gdm.enable = true;
};
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# Install Flatpaks
flatpak.packages = [
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"com.github.finefindus.eyedropper"
"com.mattjakeman.ExtensionManager"
"org.bluesabre.MenuLibre"
"org.gnome.baobab"
"org.gnome.Calculator"
"org.gnome.Characters"
"org.gnome.Calendar"
"org.gnome.Evince"
"org.gnome.Evolution"
"org.gnome.FileRoller"
"org.gnome.Firmware"
"org.gnome.gitg"
"org.gnome.Loupe" # Gnome's fancy new image viewer
"org.gnome.Music"
"org.gnome.seahorse.Application"
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"org.gnome.Shotwell"
"org.gnome.TextEditor"
"org.gtk.Gtk3theme.Adwaita-dark"
];
};
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environment = {
# Remove default Gnome packages that came with the install, then install the ones I actually use
gnome.excludePackages =
(with pkgs; [
gnome-photos
gnome-tour
gnomeExtensions.extension-list
gedit # text editor
])
++ (with pkgs.gnome; [
gnome-music
gnome-calendar
epiphany # web browser
geary # email reader
evince # document viewer
gnome-characters
gnome-software
totem # video player
tali # poker game
iagno # go game
hitori # sudoku game
atomix # puzzle game
]);
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# Install additional packages
systemPackages = with pkgs; [
# Gnome tweak tools
gnome.gnome-tweaks
# Gnome extensions
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gnomeExtensions.alphabetical-app-grid
gnomeExtensions.appindicator
gnomeExtensions.dash-to-panel
# Themeing
gnome.gnome-themes-extra
papirus-icon-theme
qogir-icon-theme
];
};
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# Gnome UI integration for KDE apps
qt = {
enable = true;
platformTheme = "gnome";
style = "adwaita-dark";
};
nixpkgs.overlays = lib.mkIf cfg.experimental.tripleBuffering.enable [
(final: prev: {
gnome = prev.gnome.overrideScope (
gnomeFinal: gnomePrev: {
mutter = gnomePrev.mutter.overrideAttrs (old: {
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src = inputs.gnome-triplebuffering;
});
}
);
})
];
};
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}