Well not sure but I do believe there are many, Vic is constantly updating and upgrading it.
This is the npub of it nostr:nprofile1qqsv83ejztakekydrtxp3a5yn3nqc34re9et7knkd3vn35rynlwuklqpz9mhxue69uhkummnw3ezuamfdejj7n2qy64 

 Its a fork of Jam, not Nostr Nests.

It is the first and longest running open source audio chat with nip07 login, zap support, custom room colors and background image, custom reaction emoji customizations. 

Users can be anonymous or identify/login with a nostr pubkey, including room owners, moderators, and speakers making for easy core usage with or without a nostr extension.

With nostr extension, It also supports exportable/importable slide sets and link sets for presentations. 

Room chat can optionally be published as nostr live chat events. Private message support is encrypted with ephemeral session keys.

Zap goals for each room and the server for fund raising.  

 Thanks for the response 🤙

To clarify, do you mean Jam is the first and longest running open source audio chat? 

 Jam is an open source audio chat like Clubhouse. It does not natively support nostr or lightning. https://jam.systems/

The original Nostr Nests (1.0) forked Jam and never released the code changes in violation of the AGPL. As such it was a closed source project. The current Nostr Nests 2.0 however is open source thanks in large part by efforts of Companion to coordinate that amongst the people who were writing the initial code for it.

Corny Chat came into existence as a whole separate fork of Jam, starting efforts over when attempts to get Nostr Nests  to release the code for 1.0 failed. It's source code has always been open source and available consistent with the AGPL.

Other prior efforts include vida dot live, which supported login and payments but was also closed source and now appears defunct. 

 I remember that the code was here then when they made the change to kieran it deleted, or closed https://git.semisol.dev/nostrnests/nests
I found also the stacker news https://stacker.news/items/200330 

 Yes i remember that too and it was..
1) not the original code
2) that was the start of nostr nests 2
3) and even then was not an open source license