{'description': {'en': 'Personal overlay with more or less random ebuilds'},
 'homepage': 'https://github.com/Jannis234/jm-overlay',
 'name': 'jm-overlay',
 'owner': [{'email': 'jannis@ctrl-c.xyz',
            'name': 'Jannis234',
            'type': 'person'}],
 'quality': 'experimental',
 'source': [{'type': 'git',
             'uri': 'https://github.com/Jannis234/jm-overlay.git'}],
 'status': 'unofficial'}
pkgcore 0.12.8

$ pmaint --config /var/lib/repo-mirror-ci/data-sync/etc/portage sync jm-overlay
WARNING:pkgcore:HomeAssistantRepository repo at '/var/lib/repo-mirror-ci/sync/HomeAssistantRepository', doesn't specify masters in metadata/layout.conf. Please explicitly set masters (use "masters =" if the repo is standalone).
WARNING:pkgcore:dm9pZCAq repo at '/var/lib/repo-mirror-ci/sync/dm9pZCAq', doesn't specify masters in metadata/layout.conf. Please explicitly set masters (use "masters =" if the repo is standalone).
*** syncing jm-overlay
Already up to date.
*** synced jm-overlay
 * Sync succeeded
$ git log --format=%ci -1
$ git show -q --pretty=format:%G? HEAD
$ pmaint --config /var/lib/repo-mirror-ci/data/etc/portage regen --use-local-desc --pkg-desc-index -t 32 jm-overlay
 * Cache regenerated successfully