The high level idea reminds me of Pharo: https://pharo.org/ https://pharo.org/ The idea to put the program and runtime together in one unit was core to Smallt

The high level idea reminds me of Pharo: https://pharo.org/ https://pharo.org/ The idea to put the program and runtime together in one unit was core to Smalltalk of course but with Pharo you can get also the "IDE part" bundled. Once in a time there were even whole computers build on this concept: LISP-machines! Everything running on a LISP-machine is reachable and modifiable by the user (at runtime!) and you would have a build in IDE-like editing facility. https://en.wikipedia.org/wiki/Genera_(operating_system) https://en.wikipedia.org/wiki/Genera_(operating_system) > There is little protection against changing the operating system. The whole system is fully accessible and changeable. DevTools in Browsers are today the closest thing to something like that I guess. But you can only edit a webpage. It's not going down to the level of the OS of course.