Some key takeaways from my years of Lightning node running.

1. Backup your channels, because if they crash you can't recover your funds without them.

2. Open large channels because opening / closing channels during high fee periods will wipe out all income / profits from small channels.

3. Open small channels when starting because f***ing up 100K Sats is much less painful than 10M Sats

4. Yes points 2 and 3 directly contradict each other

5. The ROI on liquidity is less than 3%, if you want to make money, stick to the fiat world.

6. It's fun to learn about Lightning by playing with it, but don't under estimate how centralised and competitive the market is. There are individual node runners with 20+ BTC of liquidity failing to compete with large corporate operators.