In this episode, I discuss how I revived my Raspberry Pi 1 Model B using piCore, a specialized version of Tiny Core Linux for the Raspberry Pi, on a 128 MB SD card that I had laying around. I also mention nanoBSD and Alpine Linux as possible alternatives to try out.
Tiny Core Linux
http://tinycorelinux.net/
piCore Releases
http://www.tinycorelinux.net/9.x/armv6/
nanoBSD
https://www.freebsd.org/doc/en_US.ISO8859-1/articles/nanobsd/index.html
https://www.freebsd.org/doc/en_US.ISO8859-1/articles/nanobsd/howto.html
Alpine Linux
https://alpinelinux.org/
https://wiki.alpinelinux.org/wiki/Raspberry_Pi