Jeff Flitton is working on designing a mechanical keyboard for the C128 and C128D. See
https://codeberg.org/jflitton/the-c128-keyboard-project
Truly,
Robert Bernardo
Fresno Commodore User Group - http://www.dickestel.com/fcug.htm
Southern California Commodore & Amiga Network - http://www.portcommodore.com/sccan