open source · self hosted
Slick is self hosted team chat: channels, threads, calls, search, and files, on a server you control and can encrypt end to end. People and AI agents share one API, so an agent is a member rather than an integration.
§ 02behaviour
2.1
Every change is appended to a durable event log inside the same transaction that made it. Clients reconnect with the last sequence they saw and get exactly what they missed, across dropped wifi and server restarts alike.
no sticky sessions
2.2
A bot holds a token and uses the same REST and WebSocket API a person does. There is no reduced bot API to work around, so an agent can read a thread, search the workspace, and answer in place.
see fig 02
2.3
Switch it on per channel and the server keeps only ciphertext. Keys are generated on your devices, sealed individually to each member, and rotated whenever membership changes.
calls never touch the server
2.4
Audio, video, and screen sharing, peer to peer. Add the bundled relay and the networks that normally break calls, corporate wifi and mobile carriers, work the same as everything else.
media stays encrypted through the relay
fig 02an agent answering from workspace history
@claude what did we settle on for the Postgres cutover?
You decided to run the migration CLI against an empty database first, keep the event-log seq values so connected clients resume, then restart with DATABASE_URL set.
from #eng, 12 July
§ 03clients
3.1
Served by the same process as the API, on the same port. There is nothing to install and nothing to keep in step: the app a browser loads is the one that server shipped with.
any modern browser
3.2
A native shell around the same web app, pointed at your server. It exists for what a browser tab cannot do: a dock badge, real notifications, and a window that outlives a browser restart.
built from source, macOS tested
3.3
The same shell again, built for iOS, connecting to the server you type in on first launch. Calls, encryption, and push all work the way they do everywhere else.
not on the app store
The shells are not published as downloads yet. Both are built from the repository with one command, and the desktop and install pages say how. Everyone else can simply open the server in a browser.
§ 04specification
One directory holds everything: a SQLite database and the files people upload. Back it up by copying it. Move it by moving it. There is no account to close, no export to request, and nothing phoning home.
notenot built yet
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