That was already a thing back in 2004: https://bellard.org/tcc/tccboot.html https://bellard.org/tcc/tccboot.html 15 seconds to compile and run a Linux kernel o

That was already a thing back in 2004: https://bellard.org/tcc/tccboot.html https://bellard.org/tcc/tccboot.html 15 seconds to compile and run a Linux kernel of the time (64MB RAM required!).