Having tests across your API endpoints is essential in order to avoid regression issues down the track
Some of the neat things I have found with Drupal 8 and some of my lessons learned
Integrating PHPunit into your custom modules is now even easier.
Sometimes truncation is best
A collection of resources from Drupal development shops
A graphical way to see how your Drupal site content is growing over time
Your options, the pros and the cons
Simple code to maximise your varnish hitrate
Kick start your automated testing
A quick intro into using Snap.svg
Finding the offenders breaking your caching strategy
Simple steps to tune your application
Some of the sessions I found entertaining and insightful
You should do this yesterday
How to get this done in Drupal
Simple git commands to save you
Also introducing a new module preview sync
Get meaningful stats/data from your apache log files easily
Simple Solr server setup for use while developing
Icons on all the things