This app brings the Matterbridge binary from 42wim to your server to connect Nextcloud Talk with other chat services. It allows easy installation and updates of the binary in the known ways.
If I install the Matterbridge app from the app market, ii should see the settings for the bridge integration in the Talk settings (settings>talk). Is that correct?
That might not be coded on the Nextcloud Talk end yet. I do see it mentioned on the matterbridge project site though. Best to file a report on their linked github above. https://github.com/nextcloud/talk_matterbridge
edit: Answered my own question. We must create a bot user for Talk.
:warning: <strong>Create a dedicated user (a new account specifically for the bot) first.
It will not relay messages from yourself if you use your account</strong>
[nctalk.cloud] # The location of your Nextcloud instance with Talk installed Server="https://example.com" Login="YourBotUsernameHere" Password="YourBotPasswordHere" RemoteNickFormat="[{PROTOCOL}] <{NICK}> "