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How to run team chat on a small server
What a small cloud server can host, and what to watch.
The short answer
A small cloud server, around two CPU cores and 4 GB of memory, is a reasonable starting point for a team of a few dozen people. This is an estimate, not a benchmark.
Set up
Pick a server
Use the server sizer for a starting point.
Install Dock
Node plus one SQLite file.
Add HTTPS
Put a reverse proxy or tunnel in front.
Turn on backups and 2-step login
Then invite your team.
What to watch
Disk space as files grow, and memory during large meetings if you do not use a media server.
Questions
Do I need a GPU?
No.
How do I back up?
Use the daily backups and copy them off the server.