SixyBot can render your webcam directly inside the overlay browser source so you can drag and resize it in /editor like any other widget. This requires OBS to allow camera access in browser sources, which isn't on by default.
Click OK, fully exit OBS (right-click tray icon -> Exit), then relaunch via the shortcut.
Reload this page in the OBS browser source. The probe should turn green.
Why: CEF (the browser engine OBS uses) can't show a permission dialog inside a windowless browser source, so without --use-fake-ui-for-media-stream camera/mic requests get auto-denied. This is documented in obs-browser#146.
Fix: camera locked by another app
Most webcams allow only one process to read them at a time on Windows. If OBS already has your cam as a Video Capture Device source, the browser source's camera widget will fail.
In OBS, find the Video Capture Device source for your webcam in any scene.
Right-click it -> Remove (or Hide by toggling the eye icon if you want to keep it as a fallback).
Reload this page. The probe should turn green and the camera will appear in the browser-source overlay instead.
Why this matters: the browser-source camera is dragable/resizable per scene/layout in /editor. The native OBS Video Capture source is positioned per-scene in OBS itself. You only want one consumer of the cam - which one is up to you.
Fix: no camera detected
No video input devices found on this system. Plug in a webcam (or enable a virtual camera like NVIDIA Broadcast / OBS Virtual Camera) and reload this page.