The bitbuf is a portable 8-bit minimalistic live looping machine. Designed as a tool for chip music improvisation and live performances, it aims to provide a set of simple yet versatile features. It's a work in progress, but I've made a prototype which is already quite functional and enjoyable to work with.
The word bit in this context refers to a small fragment (a loop) of a piece of 8-bit music. Buf is computer programming jargon for a piece of memory where you store something for later retrieval. The basic job of this machine is to memorise a loop, and then recall it over and over again.
This is the same guy who did the demo on a microcontroller