#architecture

The big rewrite is the most seductive and most dangerous decision in software. Here is how we decide between refactor, strangler-fig migration, and full rebuild — and why the answer is usually 'incremental.'

Billing is where SaaS products quietly lose money — double charges, missed upgrades, silent failed renewals. Here are the architecture mistakes we see most, and how to build billing that doesn't leak.

Most MVPs ship in two phases: the demo, and the rebuild. The first wins the seed round; the second consumes the next twelve months. There's a better way — and it doesn't take longer.

Every few months a new database promises 10x performance and infinite scale. Most teams should ignore them. Postgres, in 2026, is still the right default for 90% of products.