in-app subscriptions
Most of the work in shipping in-app subscriptions was not code
Wiring in-app subscriptions blocked three releases in one day. Every blocker was a name or a scope that had to match across two systems, and none of them errored.
Firestore
2 postsLLM
What makes an LLM call cacheable is not temperature
Caching an LLM call looked trivial until I checked why it was safe. The reason I reached for first was wrong, and partial hits corrupted the totals.