the frost2x extension repo (forked from nos2x) includes everything you need to setup a demo and dev environment it includes the extension, a second test node, and an ephemeral test relay as well just updated the README to be actually useful for setting up a demo, let me know what you think:

GitHub

GitHub - FROSTR-ORG/frost2x: Nostr signer extension, with the power of FROST.

Nostr signer extension, with the power of FROST. Contribute to FROSTR-ORG/frost2x development by creating an account on GitHub.