Well right now I have 4gb of ram on the vps. I’ll keep an eye on the resource usage and I’ll be ready to upgrade it as needed. I may be going to a dedicated machine later anyway once I finish a few other projects that I’d like to launch.
UPDATE: I just checked monitoring and discourse running for several hours, only 10 or so users was using about 13% of available RAM, which isn’t bad. I’m sure that a significant load of say 100 or so users would shoot that up a lot though. So basically Discourse install with dependencies + Ubuntu are only using half a gig or so with a low user load. I’ll keep an eye on it for sure though.