Cost Optimization

Real case study: Go monolith migration to Rust Axum

Xiao Li Rewrote Go Monolith to Rust Axum, Company Saved $800K+ Yearly, His Salary Hit $2M

This isn’t a story about flexing how fast Rust is. It’s about how tech choices translate to real money, and why most rewrite projects can’t replicate this result.

January 18, 2026 · 8 min · 1554 words · Monster Code

Real experience migrating from Node.js to Rust

I Fired My Entire Node.js Stack — Rust Rebuilt It in 3 Weeks (The Ugly Truth)

API latency dropped from 850ms to 8ms, monthly costs from $12,000 to $900. Sounds great? The price was three months of hell and a team on the verge of collapse. This is a real backend migration story.

January 11, 2025 · 7 min · 1307 words · Rex Programming