Nodemailer App - An email debugging tool: "App includes local SMTP and POP3 servers, a sendmail replacement, catchall email domain service, and it imports emails from EML files, EMLX files, large MBOX files from Gmail takeout, Maildir folders and Postfix queue files for inspection and preview."
The One Weird Trick SecureROM Hates - Even if you're not interested in jailbreaking an iPhone, the amount of wizardry that goes into this stuff is amazing.
Grumpy Website - Ranting about UX annoyances can be fun to read.
Go Micro - A microservices framework written in Go, of course.