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: [תמונה] 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: [תמונה] 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: [תמונה]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.

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

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

נושא		תגובות	צפיות
ARM64 Production Level Reliability Self-hosting arm	1	909	28 ביוני,‏ 2023
Seems to work great on Graviton3 Praise arm	2	267	22 באוגוסט,‏ 2025
Support for ARM servers Feature arm	9	4678	7 בדצמבר,‏ 2021
Install Discourse on Arm-Based Compute Product Support arm	3	2115	7 בדצמבר,‏ 2021
Require ARM64 Support Product Support arm	3	1402	7 בדצמבר,‏ 2021

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