I thought this was a build-tool swap. It was actually a routing problem wearing a build-tool costume — part 1 of 2.

The bug wasn't that Google couldn't find my pages. It's that almost nothing that reads a page without running its JS could — part 2 of 2.

Why the write-ups behind these case studies live as MDX files next to the code, not in a database.

How separating live market data from UI state kept a trading interface fast under sub-300ms latency targets.

A look at the bugs that show up when local UI state and remote data get tangled together in the same store.

Moving a single-chain DeFi product to multi-chain support without a full screen-by-screen rebuild.

When to show a result before it's confirmed on-chain, and how to make the eventual reconciliation impossible to miss.