Rabbit-vm is essentially a Joy programming language implementation.
Joy is a functional programming language which is not based on the application of functions to arguments but on the composition of functions. Function composition is done by concatenation. This is called concatenative, tacit or point-free programming or if you prefer say straight away: pointless programming!
Mezzano is an operating system written in Common Lisp, published by Henry Harrington (c).
Freeputer's homepage says: Freeputer is a tiny virtual machine easily ported to most modern architectures, including bare metal, and requiring neither file system nor operating system. This offers extreme portability and the freedom to use software forever without designed obsolescence.Freeputer-1.0 was used as platform for the predecessor of the current Rabbit-vm. Freeputer turned out to be a small but very reliable, rock solid, well understood system.
Freeputer is published by Robert Gollagher (c).
Html handwritten and first published at 2018-12-20 by sts-q