My reason for wanting to be able to use a FLIRC receiver with my streamer is temporary and thus why I wanted to avoid purchasing the official Lumin remote.
I normally don’t use the volume control in Lumin, preferring it to be max and I use a preamp. But I want to send the preamp away for modifications and will be without for 6 weeks or so.
While the variable output works very well with Roon/Lumin, I intensely dislike a “screen-based” volume control. With a physical remote I can vary volume instantly with my eyes closed.
The FLIRC may well not be doable. It’s not the end of the world and will only be for a few weeks.
However, @Elmar_Heimes I may be interested in your Surface Dial / RPi solution for this IF it can be adapted to another idea I have after I’ve gotten my preamp back in the system. This is unrelated to Lumin, so I’ll create a new thread about it elsewhere. Or perhaps just inject into the thread you already have about your extension.