Cignal is an open source production grade signalling server built with simplicity and ease of integration as it’s primary goal. It is the community version of Cp2p, a production grade feature rich video calling solution for one to one video calling. It has an exhaustive documentation which has a step by step guide to integrate cignal with other applications as well as deploy it to your own cloud server.
The link to the github repo: GitHub - sauravkp/cignal: Cignal, a minimalistic yet scalable WebRTC signaling server written in Nodejs.
Feel free to ask all the questions related to cignal here in this forum.