S3 Presigned URL Expiration: Why URLs Die Early (and Fix)
S3 presigned URL expiration is capped by your signing credentials, not the expiry you set. Learn why ExpiredToken hits and the PHP fix that works.
Tag AWS Lambda
Ant JS Runtime Tested: 5ms Cold Starts vs Node, Bun, Deno
Ant is a new 9MB JavaScript runtime with 5.4ms cold starts, beating Node, Bun, and Deno. Real benchmark data, install steps, and an AWS Lambda verdict.
AWS Lambda PHP Cold Starts in 2026: SnapStart Won’t Fix
PHP on Lambda cold starts average 250ms and hit under 0.3% of requests. Here's why SnapStart can't help PHP, and what actually cuts cold start time.