Oh my. I'm the maker of the only-cross platform Yiddish keyboard (well, macOS, Windows, Linux). I've made variants of QWERTY and the Israeli keyboard and they've been well received but life got in the way, they've suffered from bitrot, I had to take my site down,[0] people have asked me to put it back up and its been nagging me on my to do list for ages.

This post has given me resolve to sort it out today!

Also, I'd never heard of this Jonas and I'm going to add his variant too.

[0] https://web.archive.org/web/20141218093006/http://shretl.org...