re: Now, I'm thinking is there anything that can't be done by JS? VIEW POST

re: yeah, like most OSes do, the rest of the os interaction (user facing stuff) is made with node/javascript Core development is being done in layers...

The statement was can't build an os, not a kernel while an os needs a kernel, not everything in the os has to be a kernel to work, just as in user space we use python, C++, C, java, and a ton of languages that underlying end up using 0's and 1's, node os builds it's os user space consuming side with javascript, just as that.
If you don't want to buy the idea it's fine, the project will still exist there and that OS wouldn't be usable without javascript so it fits the statement for me

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