I know I am late to the party but I just came across this nifty boot loader that compiles Linux kernel from the source and boots from it. TCCBOOT uses TinyCC as it’s compiler of choice. I can’t think of any way how this could be useful but this is one of those things you could do if you wanted to, with Linux. Probably has the same level of nerdiness as you would get from logstalgia.
Edit: On second thought, maybe the whole purpose is to see what can be done with TinyCC compiler.