🔗 Fan‑in: merge goroutine channels into a single, predictable stream

✅ Fewer moving parts — one consumer channel
✅ No race conditions on shared data
✅ Perfect for sensors, chat bots, scrapers & more
✅ Clear examples with tests included

📖 Full guide + copy‑pasteable Go code → Read on Medium
https://medium.com/code-your-own-path/fan-in-2025-gather-goroutine-data-without-the-headache-b5879be2c393