Proxy bluetooth receiver on another device?

Hey folks - my HA setup is running in an LXC container on Proxmox. Everything is great. EXCEPT, I’ve just discovered a need to use bluetooth but there’s a kernel limitation in passing bluetooth from the proxmox host to a container.

Can I set up a pi or something similar as a proxy or gateway for bluetooth and pass that ‘signal’ back to HA in some way.

Is that something MQTT can do?

Not quite an answer, but what do you need bluetooth for? The answer may depend on the use case.

I get it - there could be a better/different way.

I have an original Numio Senic controller that I’d love to make use of…it’s been magnetically attached to my fridge for years with no good use (because it had to be tied to an iOS app via bluetooth and never worked well). If I can use it with HA, it’d be great!

I’m using esphome as a kinda BLE<->Wifi bridge for my xiaomi mijia sensors.

Is your controller Bluetooth protocol public?
If so, it might be possible to write some code to support it using existing xiaomi mijia code as an example

That was my thought.