Engineering
Engineering deep dives, product news, and practical guides from the team building the platform.
Engineering2 min read
How we cut cold starts in half
A look at the snapshot cache, lazy module loading, and the routing change that brought the median cold start of a Node service from 410 ms to 190 ms.
Engineering2 min read
Zero-downtime database migrations in five steps
Renaming a column while the app is serving traffic is safe if you split the change into small, backward-compatible deploys. Here is the pattern we use.