"info at smallinnovations.nl" <info@???> writes:

[...]

>>> >I have no experience in setting up a distro, toolchain and
>>> >the like but always prepared to learn something new. It would be
>>> >usefull for myself too because my next webradio will be a Pi Zero in
>>> >a lunchbox.
>>>
> This remains: compiling a kernel already takes hours on a Pi A+ or B+
> with leaves the question how much is needed for a complete distro.

The usual way to do this would be to use a cross-compiler (compiler
creating code for a different CPU than the one it runs on) on a more
powerful machine.