Registries

The specifications keep several vocabularies open on purpose: a bundle can name a system, an app or an extension key the spec has never heard of, and decoders round-trip it unchanged. These pages list the known values, so producers reuse existing names instead of inventing overlapping ones.

Every registry here is non-normative: the meaning of a value belongs to the spec or the producer that minted it, not to the list. Registration is first-come and non-blocking; to add an entry, open a PR against the page.

Registry	Contents
System Slugs	The canonical slug for every known gaming system.
Emulator Cores	Known emulator cores and the systems they run.
Save Roles	The socket a save came out of, per system.
Vendor Names	Assigned x.* names for producers with no domain.

More lists land here as the specs need them; producers that are not cores (cartridge readers, services) are next in line.