this post was submitted on 27 Feb 2026
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PieFed does this.
How does this work anyway, and does it match with Lemmy's approach?
I noticed crust was saying my dev instance was not federating anymore, which was neat. It was because I don't leave my dev instance online all the time ๐
It looks like this - https://piefed.social/c/adultswim@lemm.ee
Thanks, I mean, how does this work in the backend?
Oh :)
Once per day a request is made all instances to retrieve the list of their admins. If that request fails then they're flagged as 'dormant'. If dormant for 5 days, flagged as 'gone forever' and then PieFed doesn't try to federate with them again and all their communities have that warning on them.
If any Activity arrives from a dormant / gone instance then it's restored to full operation.