I wrote PKGBUILD script for QK4 (Elecraft K4 remote software) and submitted that to the AUR repository. Arch Linux users can install QK4 with yay as follows:

$ yay -S qk4-git

It will create the proper menu / icon entries & decrease pipewire latency so that CW can be used. To update to the latest version use:

$ yay --devel -Suyy