Your stream deck is whatever button you say it is.

A stream deck is a grid of buttons that sends commands. You already own buttons. Rebind turns any key or mouse button into a broadcast control, and scripts can talk to OBS two ways: send its own hotkeys, or speak the obs-websocket protocol directly for scene switches, source toggles, and replay saves.

Push-to-talk with a release tail

The classic: a mouse side button as push-to-talk, with a short delay on release so your last word never gets clipped.

-- rebind: min_sdk=3.0.0
-- rebind: name=PTT Release Tail

function OnDown(key)
    if key == "Mouse4" then
        HID.Down("F13")
        return false
    end
    return true
end

function OnUp(key)
    if key == "Mouse4" then
        Timer.After(250, function()
            HID.Up("F13")
        end)
        return false
    end
    return true
end

Bind F13 to mic activation in your voice app and the tail does the rest.

What else fits here

• Scene cycling on mouse side buttons, with an audio cue confirming the switch.
• A BRB panic key: mute the mic and swap scenes in one press.
• Replay buffer save on a key you can hit mid-game.
• A numpad as a soundboard, each key playing its own sample through Audio.Play.
• A recording reminder that beeps softly every ten minutes while you are live.

Generate any of these in RebindGPT: describe the behavior, review the script, run it.