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`

🫧 socialcoding.. @smallcircles@social.coop

2/16/2026, 7:53:47 AM

Public

@i47iR. P. Scott

There is some terminology used by @HolosSocial that may lead to confusion and needs clarification.

The term "full #ActivityPub server" seems to refer to a full server-to-server (S2S) implementation and then hosted client-side, which communicates with the Holos relay server through websockets in order to be able to federate. You might call it a "full server on the client" implementation.

But that is different than what the spec calls a "ActivityPub conformant Federated Server" which also implements the client-to-server (C2S) Social API. I don't see C2S mentioned, and perhaps @appsFedilab Apps can improve the docs here to avoid confusions.

https://www.w3.org/TR/activitypub/#specification-profiles

ActivityPub

The ActivityPub protocol is a decentralized social networking protocol based upon the [ActivityStreams] 2.0 data format. It provides a client to server API for creating, updating and deleting content, as well as a federated server to server API for delivering notifications and content.

www.w3.org

🫧 socialcoding.. @smallcircles@social.coop

2/16/2026, 7:55:49 AM

Public

@i47iR. P. Scott @HolosSocial @appsFedilab Apps

PS. I track a list of #ActivityPub #C2S implementations and didn't add #Holos till now. If I should add it, pleas let me know, or comment directly to the issue.

https://codeberg.org/fediverse/delightful-fediverse-apps/issues/130

Which ActivityPub applications support Client-to-Server (C2S)?

In preparation of updating and reorganising of this list I would like to collect current FOSS projects that offer an implementation of ActivityPub C2S. In this [current fedi discussion](https://ausglam.space/@hugh/1144176911799110820) a bunch of projects were already named: - [ActivityPods](http...

codeberg.org · Codeberg.org

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