this post was submitted on 13 Feb 2026
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Unless I am blind or my search-fu is hugely failing me, I cannot for the life of me find any information on the recommended/minimum specs to self-host the matrix backend services. I'm trying to spin up a VM just to play around with it and see if I like it. Specifically, I'm looking at Synapse or Continuwuity. Any advice?

Looking for vCPUs, memory, storage.

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[–] ptz@dubvee.org 7 points 6 months ago* (last edited 6 months ago)

Most of the requirements are going to be for the database, and that depends on:

  1. How many active users you expect
  2. How many large rooms you or your users join

I left many of the large Matrix spaces I was in, and mine is now mostly just 1:1 chats or a group chat with a handful of friends. Given that low-usage case, I can run my server on a Pi 3 with 4 GB of RAM quite comfortably. I don't do that in practice, but I do have that setup as a backup server - it periodically syncs the database from my main server - and works fine. The bottleneck there, really, is the SD card storage since I didn't want an external SSD hanging off of it.

Even when I was active in several large Matrix spaces/rooms, a USFF Optiplex with a quad core i5, 8 GB of RAM, and a 500GB SSD was more than enough to run it comfortably alongside some other services like LibreTranslate.