Run the server (agent port, then observatory WebSocket port):

cargo run -- serve 1234 5678

qbt keeps an in-memory journal of everything observable on the host: it records every computer action it executes (with a full-screen screenshot for screen-capturing actions), and the agent publishes transcript and status events into the same journal via the publish_event action. Observatory clients connect to the WebSocket port and receive the journal — a snapshot, then live events, in one order — and fetch screenshots by id. One agent connection is served at a time; a newly connecting agent replaces the previous one, so a restarted CLI can always reconnect.

Run the observatory:

cd observatory
bun run dev

Then add a host by its WebSocket address (e.g. localhost:5678). The grid shows each host at a glance (latest activity and screenshot); open a host to flip between the driver transcript, the computer user transcript, and the raw computer actions, with the screen as it was at any selected moment.

Get https://github.com/cline/cline branch dpc/computer-use, and:

bun install
bun build:sdk
cd apps/cli
$Env:CLINE_COMPUTER_USE_PORT=1234
$Env:CLINE_HUB_PORT=5555
$Env:CLINE_COMPUTER_USER_MODEL = "claude-sonnet-5"
bun run dev

Then, you must use the Anthropic provider (not merely Anthropic models through the Cline provider, because those lack the computer-use beta header.)

• Computer use: mouse jumping for clicks but animation for moves, drags
• MCP wrapper