I&#x27;m in the iOS community mainly, though my work touches quite a lot of ruby. This talk starts out pretty funny, but focused on a testing library, then moves out to a larger discussion on the merits of working in a mature ecosystem - even when it&#x27;s not so new and sparkly anymore. That really starts to hit home arrow d 25m, so if you&#x27;re not a rubyist but are interested, it might be worth starting there.<p>The discussion around making it interesting to work with mature toolsets makes this a fascinating talk, I still write Objective-C quite often - and would still use ruby to build my next website. The trade-offs are tough there, as you&#x27;re aiming for stability in the face of a million FOMO blog posts about the newest functional protocol oriented widget.