|FLATPAK BUILD-SIGN(1)||flatpak build-sign||FLATPAK BUILD-SIGN(1)|
flatpak-build-sign - Sign an application or runtime
flatpak build-sign [OPTION...] LOCATION ID [BRANCH]
Signs the commit for a specified application or runtime in a local repository. LOCATION is the location of the repository. ID is the name of the application, or runtime if --runtime is specified. If BRANCH is not specified, it is assumed to be "master".
Applications can also be signed during build-export, but it is sometimes useful to add additional signatures later.
The following options are understood:
$ flatpak build-sign --gpg-sign=D8BA6573DDD2418027736F1BC33B315E53C1E9D6 /some/repo org.my.App