Flow builders, zero-to-hero — flow {}, flowOf, channelFlow, plus quick rules on when to use each.

Cold vs. hot streams decoded — practical snapshots of StateFlow, SharedFlow, and flowOn context shifts.

Must-know operators at a glance — mapLatest, flatMapConcat, combine, debounce, buffer, and more.

Back-pressure & performance hacks — conflation, buffering, and threading tips that keep UIs smooth.

Collecting, cancelling, retrying — one-liners for collect, launchIn, stateIn, shareIn, catch, retryWhen.

Real-world patterns — UI state, pagination, and network-DB sync examples distilled into copy-paste snippets.