currentEpochMillis
iOS/macOS: uses POSIX clock_gettime(CLOCK_REALTIME) to get epoch milliseconds. Avoids NSDate.timeIntervalSince1970 which has Kotlin/Native 2.x binding quirks.
iOS/macOS: uses POSIX clock_gettime(CLOCK_REALTIME) to get epoch milliseconds. Avoids NSDate.timeIntervalSince1970 which has Kotlin/Native 2.x binding quirks.