1️⃣ Authentication (AuthN) has always been a challenge. When I started building apps as a teenager, it was already tricky. Now, with PassKeys, MFA, magic links, and SMS-based MFA, it’s a whole new level. Here's what I've learned 🧵

#authn #backend #nodejs

Now, --main-color behaves like a real CSS property with type safety! 🎨

Example of usage: