For clang just see freebsd lists. I will not say more, since those posts speak for themself. Anyway, it is the future, for sure. Regarding st, I use suckless browser named surf from time to time, but I found both luakit and conkeror better suiting me. That post to mean that people like different things and it is not easy to find just one app everybody fancies. I tried st and let it go. My point is: default is small enough to enable user to install what he/she wants. It is pure luck fvwm is my favorite manager. But I put vi before mg and... Best regards
Zoran