Dev Log: Idempotent Syncs, Traceable Mail, and Drain-Not-Delete

A developer's log covers three key takeaways: sync operations must be idempotent to avoid conflicts on re-run; outgoing mail can be tracked using Laravel's built-in events without third-party services; and soft-delete with trash recovery is preferable to irreversible deletion. The post also discusses pagination, ITIL incident modeling, and avoiding package boundary violations.