When Self-Hosting Wins: Building a URL Shortener in Rust

When TinyURL's free tier proved limiting, this team opted to build their own URL shortener rather than upgrade to paid SaaS—revealing the hidden economics of self-hosting. Using Rust and smart architecture (in-memory caching with batched async writes), they created a service that handles redirects instantly while consuming just 32MB of memory. The project illustrates a growing trend: custom infrastructure often beats SaaS when existing resources are available and performance efficiency is engineered in.