Comment # 13 on bug 1069441 from Duncan Mac-Vicar

I can't speak for all ruby developers, but I have done enough Rails to have my
own opinion.

I can't imagine the situation where I would use a distro packaged Rails.

I only need:

- ruby
- rubygem-bundler

With that, I can create my app and pull everything else from rubygems.org and
vendor it inside the tree, in a declarative way.

I agree with Ludwig, the steps on -devel packages are confusing, but OSX users
have it worse, and the majority of Rails developers probably use Macs.

So, I would focus on making these steps easier, more than making a packaged
Rails works.

For example, as Ludwig described, the pattern could install the devel packages
of the most important gems, but additionally, it could install something in the
environment that sets NOKOGIRI_USE_SYSTEM_LIBRARIES=1.