The owncloud/apps will be archived.
Most of the apps there are old and unmaintained.
The only apps still in use are:
- user_external: shipped with core tarball. Code was moved to https://github.com/owncloud/user_external
- external aka “external sites”: shipped with core tarball. Code was moved to https://github.com/owncloud/external
- user_cas: obsoleted by https://marketplace.owncloud.com/apps/user_cas