An instance distributes installable Android apps independently of the services it runs. Add <dataRoot>/catalog/apps.json (owner-authored, atomic, 0600) with hosted-or-linked artifacts, SHA-256 and optional icon; expose the owner-gated add/edit/delete/replace API plus session-free artifact and icon downloads, and add the apps section to the public profile. The catalog is deliberately independent of services and the registry, and registry listings gain the declared service identity and a validated source href so cards can be paired correctly.
Admin
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