yeah, i think it was a huge mistake when OSX, er MacOS, completely dropped all built in TWAIN support, same time they added code signing. means suddenly 80-90% of scanners don’t work on OSX without new signed drivers. funny thing is they all work fine out of the box with windoze. hurray apple.
I have a really nice scanner that i have to keep a windows laptop to run. a USB TWAIN scanner is a perfectly usable piece of hardware that is now rendered mostly useless for Mac users. Cannon ported a few of their scanner drivers to the new OS, but most are now dead.