I had just installed RStudio server on my Raspberry Pi 4 model b recently and it has been working great! I have been using this guide here: https://andresrcs.rbind.io/2021/01/13/raspberry_pi_server/
Big thanks to Andrés Castro Socolich for all of this!!
The server is set up through my Pi and I use its ethernet IP address to access the server. So it's http://192.168.1.203:8787. However, I would like to have other users access this since it is for a project and they need access to it to. I've read about port forwarding but I have no idea how to do it. I tried doing it through my modem but nothing is connecting. I obviously do not know what I'm doing and am going off on a whim with it. If there's any way to do this, please let me know!! Thank you all in advance!