MKEYB 0.48 works on PC and XT machines
MKEYB by Tom Ehlert is a very small keyboard driver. However, MKEYB used to require an 80286 or better machine. Davide Bresolin has updated MKEYB to run on PC's and XT's. The updated MKEYB is now a 700 byte keyboard driver, saving 2.3 KB compared to XKEYB and 5 KB compared to MS-DOS KEYB. Read Davide's announcement for details, or download the new version from MKEYB's GitHub. We've also mirred this new version at the FreeDOS Files Archive at Ibiblio, under /files/dos/keyb/mkeyb