Is there a different input mapper that would work with Steam Deck?

[randomname42]

I was going to make a request for a flatpak version, as there doesn't seem to be a way to use this on Steam Deck (SteamOS is based off of Arch, but "yay -S input-remapper-git" gives an error "bash: yay: command not found". If there is a way to disable SteamOS's readonly state and set up a bunch of other stuff to get that working it would be well beyond my skill and knowledge level to do. Plus I think any changes like that would get erased every time SteamOS is updated, due to the immutable file system. That would be very impractical.)

But I see input-mapper isn't being developed anymore, so it sounds like a request for a flatpak would never happen.

Is there a different input mapper for Linux that would work with a Steam Deck?

I've tried AntiMicroX but it doesn't let you remap input from one analog axis to a different analog stick, which is something I specifically need to do.