Snapcraft extensions enable snap developers to easily incorporate a set of common requirements into a snap. For more information on how to use extensions, see Snapcraft extensions.
The following extensions are available in the latest version of Snapcraft.
| Extension name | Description | Supported base |
|---|---|---|
| env-injector | Experimental support for passing user-defined environment variables to snaps | core24 |
| flutter-stable | Create snaps that track the stable channel of the Flutter UI toolkit | core18 |
| flutter-beta | Create snaps that track the beta channel of the Flutter UI toolkit | core18 |
| flutter-dev | Create snaps that track the dev channel of the Flutter UI toolkit | core18 |
| flutter-master | Create snaps that track the master channel of the Flutter UI toolkit | core18 |
| gnome | Create snaps that integrate with GNOME and GTK. Also useful for general desktop applications. | core24 core22 |
| gnome-3-38 | This older version of the gnome extension supports GTK 3.38 and core20 |
core20 |
| gnome-3-34 | This older version of the gnome extension supports GTK 3.34 and core18 |
core18 |
| gnome-3-28 | This older version of the gnome extension supports GTK 3.28 and core18 |
core18 |
| kde-neon | Create snaps of desktop applications that use Qt5 and/or KDE Frameworks | core22 |
| kde-neon-6 | Create snaps of desktop applications that use Qt6 and/or KDE Neon 6 Frameworks | core22 |
| ros1-noetic | This extension helps you snap ROS 1 applications for the Noetic Ninjemys distribution | core20 |
| ros1-noetic-* | These extensions help you snap ROS 1 applications for the Noetic Ninjemys distribution using content-sharing | core20 |
| ros2-foxy | This extension helps you snap ROS 2 applications for the Foxy Fitzroy distribution | core20 |
| ros2-foxy-* | These extensions help you snap ROS 2 applications for the Foxy Fitzroy distribution using content-sharing | core20 |
| ros2-humble | This extension helps you snap ROS 2 applications for the Humble Hawksbill distribution | core22 |
| ros2-humble-* | These extensions help you snap ROS 2 applications for the Humble Hawksbill distribution using content-sharing | core22 |
| ros2-jazzy | This extension helps you snap ROS 2 applications for the Jazzy Jalisco distribution | core24 |
| ros2-jazzy-* | These extensions help you snap ROS 2 applications for the Jazzy Jalisco distribution using content-sharing | core24 |
The snapcraft extensions command lists which extensions are supported by the installed version of snapcraft.
Experimental extensions
To enable the use of experimental extensions in Snapcraft, set the environment variable SNAPCRAFT_ENABLE_EXPERIMENTAL_EXTENSIONS to 1.