according to the compatibility list I'll need a Archer C20 v1 or v4 to run OpenWRT.
What abaout other versions, especially the newer v5?
Is it "just" a matter of compiling a suitable binary or is the hardware too different to run OpenWRT?
I ordered a device without knowing which hardware revision it will be. But I suppose I'll get rather a new one.
So I asked just in case.
And I will share my experience, of course.
Well, it's running OpenWRT now.
I just have to figure out how to configure it correctly. I'd like to use the router as a wireless client for several devices attached to its LAN ports.
That's fine for me.
I found some older instructions for configuring a Wifi Bridge, managed to figure out what had to be changed and got my new bridge happily running now.