Get Merb

Install the gem

$ sudo gem install merb

If you're using a version of rubygems prior to 1.2, update:

$ sudo gem update --system

We are aware of some issues installing Merb 1.0 RC1 on Windows. RC2, to be released later this week, will be fully compatible with Windows

Or install from source

If you feel like living on the edge, or you want to contribute with some code or documentation.

You can find the updated documentation for working with edge at http://wiki.merbivore.com/howto/installation/edge