Is this different from good old `zip`?

Apparently, it's zip, except with an UB if sizes don't match.

Hilarious. I was evaluating Zig, I took a look at Bun, probably the most well known Zig project. Multiple issues related to seg faults.

Take a look at TigerBeetle which is also written in Zig, if you find segfaults there they even give you money :^)

https://github.com/tigerbeetledb/tigerbeetle