I am playing TTRPG remotely. For this, I was using far.app, a js app, which permit to link Game Master and Players in order to share Character sheets, dice roles, some index cards (set up as a “scene”).
Would you know an open-source software that I could self-host to basically have a board with multiple users at once.
Foundry has so many game systems, even systems like custom system builder, which let you make your own.
If all you want is spreadsheets, why not use shared Google docs or something?