|FLATPAK PIN(1)||flatpak pin||FLATPAK PIN(1)|
flatpak-pin - Pin runtimes to prevent automatic removal
flatpak pin [OPTION...] PATTERN...
Flatpak maintains a list of patterns that define which refs are pinned. A pinned ref will never be automatically uninstalled (as are unused runtimes periodically). This can be useful if for example you are using a runtime for development purposes.
Runtimes that are explicitly installed, rather than installed as a dependency of something else, are automatically pinned.
The patterns are just a partial ref, with the * character matching anything within that part of the ref. Only runtimes can be pinned, not apps. Here are some example patterns:
org.some.Runtime org.some.Runtime//unstable runtime/org.domain.* org.some.Runtime/arm
To list the current set of pins, run this command without any patterns.
The following options are understood:
$ flatpak pin
$ flatpak pin org.freedesktop.Platform//19.08
$ flatpak pin --remove org.freedesktop.Platform//19.08