Things to do after setting up a Bitcoin/Lightning node

Hi There,

After lurking here for years, here is what I did:

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1. Setup a Bitcoin node
2. Setup Lightning node
3. Established a Lightning channel with another buddy of mine.
4. practised some Bitcoin commands

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What comes next, I am into Application layer i.e. javascript/React and want to build on top of this. Like building an e-commerce store/any web app that allows to deposit sats into my node, how do I do that?

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Thank you!