Notes from lu.sagebl.eu

Keeping Too Much Logic in SQL Queries Does Not Scale

Do Grayscale JPEG Images Take Less Space?

Zstd is Impressive: A Real-World Example

What I like about Go

TIL: Go’s CompareAndSwap is not always Compare-and-swap

Selecting a Random Object in S3 (and in SQL, and others)

Implementing a Lock-Free Snowflake ID Generator

Using the Ninja build system to generate this site

Maybe We Don’t Need UUIDv7 After All

Secure DNS (DoT & DoH) is not enough

DNS Leak: How it Works and How to Implement It