Ruby gems in user land ($HOME)

[Pjotr Prins]

In the document I describe how you can install cleanly separated Ruby
gems in $HOME using the Ruby gem command that comes with GNU Guix:

  https://github.com/pjotrp/guix-notes/blob/master/RUBY#L152
 
It requires some manipulation of environment vars. A wrapper script
may automate this.

For Ruby developers this is the perfect setup, allowing clean and easy
switching between different rubies and gems.

System-level gem support will come later which will support gems
that live in the store (each gem under its own store path). That will
be incredible useful for deployment.

Pj.