This works with qt6-base in version 5.1.8. Just need to update the pkgver, depends, remove 'i686' from arch, and change:

source_x86_64=("https://cdn2.obdautodoctor.com/release/${pkgname}_${pkgver}_amd64.tar.gz")

Then run updpkgsums for the updated package.

https://www.obdautodoctor.com/release-notes/linux/ Unfortunately, I wanted to use an old USB ElmScan5 (FTDI serial) adapter for this, but apparently USB devices only work in Windows and Mac. :-/

https://www.obdautodoctor.com/obd-adapters/

Please add the -bin suffix when package use binary files and is not compiled from sources.

You should probably change the license from LGPL3 to "Proprietary"; the EULA in license.txt is pretty clear. I think lgpl-3.0.txt is included because they're using qt & bluez.