If you read Japanese, you might have seen the book “Design and Implementation of Microkernels” by [Seiya Nuda]. An appendix covers how to write your own operating system for RISC-V in about 1,000 ...
Ubuntu Cinnamon combines familiarity and strong hardware support, making it the perfect secondary OS for your PC.
Nothing says that it will build its own operating system for phones and beyond, while also launching new "AI-native devices" ...