Posts

A phone with no network cannot log anyone in. It can unlock cached data: device-bound key wrappers, crypto-bound biometrics, expiry that counts sleep.

~/.claude and ~/.codex mix config with logins and plaintext transcripts. Back up what you wrote, exclude credential files, and log in again on restore.

A broad withKnownIssue wrapper treated missing snapshots as expected failures. Narrow the matcher, then prove a wrong rendered state fails.

Replacing a shared timer left an older Swift task running. Give each operation its own cancellation deadline, and test the waiter with a stalled fetch.

A global opaque UINavigationBar appearance covered a SwiftUI large title while accessibility checks passed. Remove the screen-level global write.

Check the processed Info.plist in an Xcode build phase so manual Archive fails on a wrong bundle ID or display name.

Selecting the latest row per account discards other devices. Label that metric precisely, and aggregate per device before asking about fleet exposure.

A serialized Swift Testing suite lost files to another suite's initializer. Inject startup cleanup so ordinary test construction leaves shared files alone.

Regex extraction can assign a CVE to the wrong advisory without changing the distinct-ID total. Parse declaration blocks and test exact relationships.

A device-clock rollback can make an expired cache look fresh. Reject future timestamps, retain a clock high-water mark, and recheck at unlock.