Our Josh Bensadon received a mention on Hackaday for his 14-byte
bootloader for the Altair 8800:
https://just8bits.blogspot.co.uk/2017/03/doing-it-in-less-than-bill-gates.html
Mike Loewen mloewen at cpumagic.scol.pa.us
Old Technology http://q7.neurotica.com/Oldtech/