Development
A tracklist section, and why it took 30 minutes
One protocol method, a reused state enum, a routing convention that held, and a lint budget that forced a split worth making anyway.
Dev log
Deep Cut Atlas
Development
The 8-second scan hiding in every refresh
Measuring on device found a whole-library scan running on every Discover batch - and a 16x measurement trap where the HTTP cache flattered the wrong path.
Development
try? turned an outage into "all caught up"
A try? ?? [] made network failure indistinguishable from "no releases", which let an outage cache an empty feed over good data for 24 hours.
Development
The setting that worked perfectly and felt completely broken
A filter setting only applied after relaunch, since a TabView keeps view models alive and seeded state stays frozen. The fix deleted a concept, not a bug.
Development
One knowledge base for all your AI agents
CLAUDE.md is great for stable conventions, but bad at holding gotchas and hard-won lessons. That needs one shared vault, not a copy per repo.
Development
Shipping Deep Cut Atlas: what broke during my first App Store submission
A consumable that should have been non-consumable, a product ID you can never reuse, an archive that quietly didn't rebuild, and a rename with a two-week fuse.
Development
Pro-gated iCloud sync for the "Not Interested" list
A KVS blob with tombstones instead of CloudKit-everything, a decorator that keeps free users off iCloud entirely, and proving sync works with only one device.
Development
A UX decision I got wrong on the first try
The add-to-playlist action matched its sibling gesture on the same card - and fought the rest of the app. Picking the wrong reference point for "consistent."
Development
The Discover tab that got permanently stuck digging
A failed artist fetch never counted as checked, so one bad artist re-selected itself forever - and the fix tripped a second guard only a multi-round test could catch.
Development
A docs sweep that found two more stale claims than expected
Six known drift items on the list, two more found by actually running the documented commands, and a rename fix that project memory made narrower than find-replace.
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