[beders]

Honestly, if you spend that much code on a single `printf`, I will reject your PR and we will have a conversation about code maintenance and cost.

Please don't adopt this.

[jitl]

printf is about 700 lines in musl libc https://git.musl-libc.org/cgit/musl/tree/src/stdio/vfprintf....

and there's no language-level type safety, although plenty of tools lint printf now