My PostgreSQL query went from 57ms to 1.4ms on a 1 million + row table. I didn't change the query. Here's what I did.

Built a free JSON formatter & validator and would love some feedback from fellow developers.

Built a shared-memory Worker Pool runtime to learn Web Workers, SharedArrayBuffer, and runtime architecture

Storing data from two domains in a single IndexedDB data store

How much do you hate this pattern?

built an experimental browser runtime to learn WebAssembly, Workers, SharedArrayBuffer, Atomics, and runtime architecture

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I iterated on the same prompt 12 times before it worked. Here's what I kept getting wrongs

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Multiple Runtimes, Reducing Your Claude Code Bill, and Your Doctors Database