Nextcloud Talk fulll setup

I have nextcloud installed on my ubutu 20.04 computer, also the app nextcloud talk is installed, but I want to have the max from it and have it fully working then I need the following services in this job: 1. Set up a fully working turn and stun own server on linux computer. 2. Install and make those Stun/Turn servers fully work with my nexcloud installation with no errors. 3. Setup a fully working signaling own server to allow at least 50 simultaneous video atendees without issues 4. Install and make that Signaling server fully work with my nextcloud installation with no errors. The most of this is right out of the box when installing nextcloud talk, that means we actually need to create a stun/turn server and a signal server that fully works with our nextcloud installation.