Seeking an alternative matter bridge

When I was running Home Assistant on CasaOS, I tried the Matter bridge in the Big Bear repository, but it did not work well stably with my Alexa system, with devices switching between available and unavailable.

I then installed another Matter bridge, which worked very well. It had a very simple, but sufficient, UI which just showed the list of exposed devices. Unfortunately, I did not keep a record of where it is located.

Now I have switched to ZimaOS, and I can only find the Matter bridge in the Big Bear repository. I installed it, and although my Alexa system picks up the devices I expose, it always reports them as unresponsive.

I cannot find the Matter bridge that did work well. Does anyone know where I can find it or any other alternative?

Python Matter Server and Matter Server are servers. They handle Matter devices.

I am looking for a Matter bridge. A Matter bridge makes selected devices, helpers and automations in Home Assistant appear to be Matter devices, exposing them to Alexa.

That is what MatterBridge does but, for whatever reason, it is unstable in my environment – not clear why.