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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

2️⃣ SaaS solutions are everywhere, but what if you don’t want to pay to remove branding or need something self-hosted? That’s the real challenge—finding a solid, flexible, and non-SaaS option.

3️⃣ One tool I’ve been tracking is OpenAuth: a self-hosted OAuth2 solution that works on Cloudflare Workers, AWS Lambda, Node.js, and more. It includes server/client libraries and a customizable UI. Check it out: https://buff.ly/4gbIQdQ

4️⃣ Another interesting contender is ButterAuth: a modern, flexible self-hosted authentication solution. You can learn more about it here: https://buff.ly/4gTmjlO