

The infix syntax is not great, but you can at least write frac(n (n + 1), 2) and it renders the way you would expect.
Edit:
This is not even an option in typst, which uses the space as an escape character.
Technically LaTeX does this too with omitted curly braces:
\sum_{n=1}^9 % works
\sum_{n=1}^10 % doesn't work
Everyone just quickly learns to not do that.




Chimera Linux patches musl to use mimalloc and that allegedly mostly closes the performance gap. With notable glibc stronghold systemd supporting musl in recent versions I wouldn’t be too surprised if it catches on eventually, like clang arguably already has.