a) upon each rebooting I have to become sudo and issue the command

# rfkill unblock all

in order for the wicd to work. It there any other, automated, way to have a working connexion?

It seems it depends on hardware and drivers.

The problem is in the fact that Devuan ASCII has no proper decorator for Compiz in repository (it's also Debian problem). However, in Devuan Ceres (and may be also in Devuan Beowulf) you can use Emerald decorator - it works at least for me. Compiz was almost dead but some enthiusiasts decided to make it working with recent libraries and distribution. The result of their work came to repo not long ago. You can still try to configure Compiz for MATE with compiz configurator by setting corresponding decorator manually.

I just installed a Devuan ASCII and I am facing with two problems:

a) upon each rebooting I have to become sudo and issue the command

# rfkill unblock all

in order for the wicd to work. It there any other, automated, way to have a working connexion?

b) Compiz seems to have problems (e.g. window borders disappear) in MATE. Does anyone know any workaround?