As far as software, it looks like custom made, operated by FKeys. I didn't have time to fully explore it.
My 1500 Mhz AMD CPU can't handle Adobe Flash so I did not watch the video for clues.
We used to sell an F-key character generator waaaay back ... I think it was called JDK Character Generator? I can't remember exactly... its been soooo long... I am forgetting everything.... Anyway it was an
awesome piece of software on OCS with a 7.15909Mhz 68000 CPU with 0 bytes L1 Cache. It would be Amazing on AGA. It came with a bunch of really nice fonts. Having a hard drive would help out a lot.
I always loved Amiga Character Generators. They were soooooooo beautiful and professional and awesome.
Anyway Good Score! Saving a lost piece of Amiga Technology is wonderful.