ASDF-VM Updated:
I have been using chruby for about 2 years. But when I started in the team I choose chruby because people on my team were using it. I did consider changing every time I hit a rough edge like Emacs integration, or some other thing. The other viable option seemed to be rbenv, which was widely used but I had only ever seen it installed on systems. I did always think that it's model of using shims was a bit better than chruby that updates the PATH.
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