This space seems to be crowded lately. There's also the newish rbfu[1], which also aims to be a lighter tool.<p>It's not directly relevant to Ry, which doesn't use such files, but there's now even a proposal to standardize around a .ruby-version file for these env managers[2].<p>Also tangential, but Mislav Marohnić probably wins the prize for <i>simplest</i> Ruby version manager[3].<p>[1] <a href="https://github.com/hmans/rbfu" rel="nofollow">https://github.com/hmans/rbfu</a><p>[2] <a href="https://gist.github.com/1912050" rel="nofollow">https://gist.github.com/1912050</a><p>[3] <a href="https://github.com/mislav/dotfiles/blob/93c0cd3/bash_aliases#L58-69" rel="nofollow">https://github.com/mislav/dotfiles/blob/93c0cd3/bash_aliases...</a>