What's the most underrated tool in your tech stack?

For me, it's N8N. I used it to replace my entire backend orchestration logic for a Video SaaS I built. It handles communication between Docker containers better than my custom code did.

Anyone else using no-code tools for heavy backend lifting?

(Context: I actually turned that project into a starter kit recently: https://www.producthunt.com/products/youclip-starter-kit?launch=youclip-starter-kit)