Open source product analytics with feature tracking and funnels.

PostHog

A nice article by Stephen Hartfield about the gotchas in interview questions about JavaScript.

JavaScript Interview Questions: Common Gotchas

A list of books for the self-taught front-end developer.

An article by Carol Sankar about the things you can do to make your website accessible.

A tool to search across git repos with the ability to use regex.

A big tool depository for things all around design.

Google Lighthouse just published its plugin for the Firefox browser.

A documentary by Honeypot about the story of Vue.js.

The article by Microsoft about the new release of TypeScript 3.8.