Maximum simultaneous one to one session?

maximum simultaneous one to one session? please state required/recommended cpu, ram, etc if one has to implement only one to one sessions to develop a SaaS application

or i’d be better off using good old webrtc for peer to peer?

Hi, if your use case is just one to one meetings, you could use P2P, without a Media Server (it will be available in Openvidu soon).

Meanwhile, you can use openvidu-loadtest project for performing your load test and get the useful information about your stack like the limit of sessions.