There's no OBS plugin — here's what actually happens
Challenger Bot doesn't integrate with OBS through a plugin or browser source.
Its overlay commands (!Gray, !Black, !Tunel)
open a real, borderless desktop window built with wxPython when they fire. If
you're already capturing your full display in OBS, you'll see them appear
automatically with zero setup. If you're using a Game Capture source scoped to
a specific window, the overlay window sits outside that capture and won't show
up unless you add a source for it.
Capturing the overlay window
In OBS: Sources → + → Window Capture, then set the window to Challenger Bot's overlay once it's open (the window only exists while an overlay command is active, so trigger one from chat first, or test it from the dashboard, to make it selectable). Position that source above your game capture in the scene so it isn't hidden behind it.
If you'd rather not manage a separate source, a Display Capture source covering your full monitor will always show the overlay the instant it appears, at the cost of capturing everything else on that display too (taskbar, other windows, notifications).
What doesn't need any OBS setup
Challenger Bot's key-mapping commands
and the display-rotate command affect the actual game or your OS directly — your
existing Game Capture or Display Capture source already shows those with no
changes needed. The voice command (!Word) plays through your
system's audio output, so it's picked up by whatever audio source you already
have configured for desktop audio.