Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Achim Domma @achim@social.saarland

1/11/2026, 5:53:53 PM

Public

#activitypub follow-up question: Thanks to @silverpill I made progress with my "Follow" request sent to Mastodon. After fixing a few more issues my current error message from Mastodon is:

"Could not refresh public key https://pub.saar.social/user/achim/key"

This URL returns my full profile having type "Person", which also contains the public key. The type "Person" is also used in the AP book by @evanEvan Prodromou which I use as a reference.

[...]

If you have a fediverse account, you can quote this note from your own instance. Search https://social.saarland/users/achim/statuses/115877742740249246 on your instance and quote it. (Note that quoting is not supported in Mastodon.)