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2 posts

macOSDeep Dive October 3, 2026 8 min read

EventKit on macOS: Event Store Access, Recurrence, and Change Recovery

Build resilient EventKit features with least-privilege access, stable calendar queries, recurrence-aware edits, stale-object recovery, and safe batch commits.

#macos#eventkit#calendar

macOSDeep Dive October 3, 2026 8 min read

Calendar and Time Zones on macOS: Civil Time, Recurrence, and DST

Model macOS dates correctly by separating instants from wall-clock intent, handling DST gaps and repeats, and persisting time-zone policy.

#macos#foundation#calendar