Another month, another new package. I've extracted the canonical URL resolution logic into a standalone library which I called Feedcanon.

The same feed is often accessible through different URLs — mixed schemes, trailing slashes, query params. The logic for collapsing those duplicates has been growing inside Feedstand for a while.

The more I worked on it, the more it looked like a problem worth solving in isolation, the same approach as Feedsmith and Feedscout earlier.

Feedcanon now resolves a candidate URL down to its canonical form before subscription, so duplicates collapse into a single feed instead of slipping through as separate ones.

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On the internal tooling side, the project migrated fully from npm to Bun, took a shot at upgrading Drizzle to 1.0 beta, and removed a pile of unused packages.