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Flatpak is a linux application sandboxing and distribution framework


Using this configuration, flatpak will be installed and ready for use globally for all users:

services.flatpak.enable = true;

If you'd rather make flatpak available on a specific user rather than globally, add flatpak to that user's packages. To be able to install flatpaks graphically, add the gnome.gnome-software package. The result will look something like this:

  users.users.myflatpakuser = {
    packages = with pkgs; [

After adding the desired solution to your configuration file, flatpak will be installed, however it is not always added to your path directly, e.g. when you are using sway it will be not.

To manually add it to path while using a greetd login manager and Sway create a .profile file with an override for your XDG_DATA_DIRS path, e.g.:

export XDG_DATA_DIRS=$XDG_DATA_DIRS:/usr/share:/var/lib/flatpak/exports/share:$HOME/.local/share/flatpak/exports/share

This is also required when installing flatpak on a per-user basis.

To start using flatpaks, particularly for flatpak development:

flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
flatpak update
flatpak search bustle
flatpak install flathub org.freedesktop.Bustle
flatpak run org.freedesktop.Bustle


Build Flatpak project

The following example builds a demo project of the libhandy repository using flatpak-builder, installs it locally in the user space and run it. First install flatpak and flatpak-builder on your system

services.flatpak.enable = true;
environment.systemPackages = [ pkgs.flatpak-builder ];

Clone, build and run the example project. As for now a patch for libhandy might be required to fix a bug in the build process.

flatpak remote-add --if-not-exists gnome-nightly https://nightly.gnome.org/gnome-nightly.flatpakrepo
flatpak install org.gnome.Sdk/x86_64/master org.gnome.Platform/x86_64/master
git clone https://gitlab.gnome.org/GNOME/libhandy.git
cd libhandy
flatpak-builder --user --install _flatpak examples/sm.puri.Handy.Demo.json
flatpak run sm.puri.Handy.Demo

Note that the gnome-nightly repository and its dependencies are especially required for this specific project and might be different for other Flatpak projects.


Missing themes and cursors

If you have issues with cursors or themes in general, take a look at Fonts