1

What is the hardware setup you use for your LN node? Is a Raspberry Pi 3 enough for testing and playing with small amount of funds?

2

Lightning itself is a pretty lightweight protocol and can easily be run on a raspi 3. However without neutrino a lightning node needs to have access to a Bitcoin full node. Most people seem to run the Bitcoin node on the same machine as the lightning node. While a raspi3 can run both the processor is a little week to verify the entire blockchain. So expect a long time (couple of weeks) for initial blockchain sync or run a remote Bitcoin node.

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