Well, uCrux is not for me.
The main problem is what lead me to it in the first place, uClibc.
Sadly, I cannot recommend it except for embedded devices. It has some problems building or linking specific software, but that's not it. The problem is there is no upgrade route.
Since it promises to break binary compatibility every version, you have to rebuild the world to, for example, see if a bug is fixed in latest snapshot.
So, back to glibc, at least for a while.
And, since I decided to switch to glibc, why not look at Crux's child, Arch? It's downloading now.