I'm the creator and primary developer of Mezzano Mezzano is an operating system developed from scratch and inspired by the historic Lisp machines.It is written in Common Lisp (including low-level code) and designed to support modern hardware.There is a major focus on live development - functions, classes and other components at every level of the system can be added or modified at runtime.Like the Lisp machines it uses a single address space, no separate protection domains, and no isolation between programs, relying on the safety of the language to prevent and limit damage from bugs.It is currently developed as a hobby, but I would like to create a system that I - and maybe others - could eventually use as my main operating system.If you find this appealing, please consider supporting my project.