smith - Command line utility from Oracle designed to build containers with only a single process & its dependencies, reading and writing from standard locations.
Syntax. - New podcast from Wes Bos and Scott Tolinski, kicking off with an episode about React tools.
Exclude Some Stylesheets in Rails 4 - Rails helpfully provides different stylesheets for different controllers - and then insists on concatenating them all together. Here are some thoughts on a more modular setup.
Ship - Native macOS client for GitHub, focused on code review and issue tracking.
Ruby on Rails Code Audits: 8 Steps to Review Your App - Quick ways to judge the quality of a codebase that you just stepped in. I'd add that you should look at routes.rb early on; if the routing is craptacular the rest of the app won't be any better.