I’ve coded a small adapter that lets you use Home Assistant lights with Hyperion. You can use both rgb (for full color) and non-rgb lights (just for dimming). This way I can control lights both through HA as well as from Hyperion
I’ve tried using ha-bridge before, but it was just awfully inconvenient to configure.
Not sure about a supervised HASS.OS install, didn’t try it exactly because of how limiting it is.
But I see you have Hyperion installed, I assume it’s not installed within HASS.OS, just on some other machine? You can run my bridge on that other machine and it will connect to Home Assistant over the network. The bridge requires no changes or config on Home Assistant side, it just uses the API that is already there