Afternoon. I don’t see any recent discussions on this, so, asking for a “2025” answer. Is Discourse supported on an ARM based CPU?

Ahh! Thank you. To confirm, not just PI, but any box running an ARM processor?

Shall defer to a member of the team here: [image] ARM64 Production Level Reliability Self-hosting While we use ARM for PostgreSQL and Redis production hosting, and we have made the Ruby app ARM64 compatible since Discourse on a Raspberry Pi | Blog, we don’t host production traffic from our hosting in ARM yet. That said, as long as you can safely store database backups off-site and monitor the website for error/response times reliably, it should be safe to give ARM in production traffic.

I’ve had a few instances on ARM servers (at Hetzner) for years and everything works as expected. But be aware of this: [image] Mail-receiver lacks an official ARM-compatible image Feature Continuing the discussion from Does the mail-receiver work with arm?: It has been mentioned a couple of times on meta, but I guess it’s better if it has its own #feature request topic. Discourse works great on ARM servers. I never came across any issue. Unfortunately, running it on this architecture prevents you from using the official mail-receiver image. From a technical perspective, I know absolutely nothing and I (confidently) rely on what Matt said in the linked topic:

There’s also a difference, I think, in how ARM is pulled from the repo. I don’t fully understand: [image]Launcher pulls an update on ‘enter app’ … on Intel the script checks to see if a new image is available, but on ARM it will always pull. The reason given is that ARM always uses a fixed tag. For example, today, we see in the launcher script two possibilities: image="discourse/base:2.0.20240825-0027" or image="discourse/base:aarch64" and as you see, one of those is maintained carefully as new images are approved, and the other is left to the position of the tag.

ARM Support

Product Support Self-hosting

merefield (Robert) February 23, 2025, 5:43pm 2

See raspberry-pi, and arm yes it is supported.

Topic		Replies	Views
ARM64 Production Level Reliability Self-hosting arm	1	905	June 28, 2023
Seems to work great on Graviton3 Praise arm	2	266	August 22, 2025
Support for ARM servers Feature arm	9	4672	December 7, 2021
Install Discourse on Arm-Based Compute Product Support arm	3	2115	December 7, 2021
Require ARM64 Support Product Support arm	3	1401	December 7, 2021

ARM Support

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