This also reminds me of TapXR, which I would totally buy if did morse, instead of inventing their own encoding. I get it, theirs is probably way faster but fluency is morse is more general purpose.
Just how general purpose is it these days? I learned it for amateur radio (a couple years ago), which is probably the only “common” place to use Morse. And even there it’s all but dead
Clubs like Long Island CW have thousands of members and run classes all day to teach people Morse and help with their operating skills. Just this morning I joined the weekly CWOps mini contest which is so popular they have it in 4 x 1 hour sessions. And that's on top of the 3 medium speed sessions on Mondays, and 2 slow speed ones.
There might not be as much ragchew activity but between contests, DXers, and POTA, there's CW activity all over the bands.
Go here and see a live map of CW contacts picked up by the Reverse Beacon Network in the past 10 minutes (only the most recent 100, which is the most I could get it to show at once): https://www.reversebeacon.net/main.php?zoom=44.44,6.37,2.40&...
Also, knowing Morse has been my escape room superpower. Escape room designers love Morse.