Vidrio - Holographic screencasting app for Mac. Free for COVID-19
Ruby Weekly - A free, once–weekly e-mail round-up of Ruby news and articles.
SketchCasts - A weekly screencast, all about how to use Sketch
Laravel - A PHP Framework For Web Artisans
Scrimba - Interactive coding screencasts created in an instant
Codewars - Achieve code mastery through challenge.