jart Cosmopolitan. It combines a polyglot format (the αcτµαlly pδrταblε εxεcµταblε is simultaneously a Windows Portable Executable and a Thompson Shell script)

jart Cosmopolitan. It combines a polyglot format (the αcτµαlly pδrταblε εxεcµταblε is simultaneously a Windows Portable Executable and a Thompson Shell script) and a polymorphic libc that works in all major OSes under both amd64 and arm64. It's a single binary.