Back in April I reverse-engineered the Ulanzi Stream Controller D200 and wrote a Bitfocus Companion surface plugin for it. It started as a developer module you had to clone and side-load. It’s now an official Companion surface: submitted to the Bitfocus module store and pending review, which means once approved it installs straight from inside Companion — no cloning, no build step.

What changed # what-changed

• It’s in the store. Submitted as ulanzi-stream-controller v1.0.0 via the Bitfocus developer portal. After a volunteer review it’ll be a one-click install for anyone on Companion 4.0+.
• The repo moved to the Bitfocus org: github.com/bitfocus/companion-surface-ulanzi-stream-controller. That’s now the home for development, issues, and releases.
• D200X support. The plugin now also drives the D200X (14 buttons — the small-window slot becomes a regular button), alongside the original D200, plus a screensaver mode and a pile of small-window rendering fixes.

How official surface modules work # how-official-surface-modules-work

Companion’s surface plugin system (4.3.0+) follows the same model as connection modules: you keep your own repo, tag a release, and submit the tag through developer.bitfocus.io. The store references your tagged build — Bitfocus never forks your code. Releasing is just: bump the version, yarn package to verify the build, tag vX.Y.Z, push, and submit.

Get it # get-it

Once it clears review it’ll show up under Surfaces in Companion. Until then you can build from the repo — see SETUP.md for the Linux notes (the USB-2 hub requirement still applies).