Only install system packages which are useful for many people

[mathbunnyru]

Fix: #1588

[consideRatio]

I appreciate having comments for everything we have included, so that there is clarity for long term maintenance about the purpose/value of all packages.

I cant say if these will be reasonable to remove or not in practice. I'm okay doing it but would appreciate additional reviewers!

[mathbunnyru]

I suppose, if some package is really needed for some crucial feature, we should:

• docs, why this package is needed, and what feature won't work (inline docs like these help a lot)
• test, which tests the feature (not just the package)
• if we delete the package, the users will come with - "hey, this feature doesn't work after the update" and we will add the package back with something from above
• super-useful package, like wget or vim is also ok

So, in general, I'm not afraid of changes like that :)

[consideRatio]

Thanks for your thorough work!! ♥️🎉

[mathbunnyru]

Let's merge this, I don't think this will cause us many problems.