I just discovered RVM, a tool for managing multiple versions of ruby on the same system. This is really useful on my MacBook Pro, since the built-in Ruby “has problems”. Such as having gems in weird locations which makes updating them difficult. Plus the fact that the OS X updater may clobber your changes without warning.
Setting it up is pretty easy and the versions of ruby installed are all yours, installed into your environment.


Smoking craters are good
Every wondered how to make bulletproof software? What tricks do the guys who build bank machines use to be sure their software doesn’t ever crash?
Look no further!
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