Diversify installation procedure

[Clownshift]

This is a rather generic issue on purpose.

Dependency declaration and non-conda installations may potentially be improved...

[jokr91]

So this makes #41 obsolete right?

[Clownshift]

Ah yes, you are right, sorry. #41 is definitely included here.

[jokr91]

labeled won't fix, as the dependency installation is more difficult on non-conda installs.
However, we could state the dependencies more clearly and solve the issue in that way