Playground section - Solidity snippet for /start page

[andrealbiac]

I think I'm missing some solidity knowledge to have a few ideas about this, but it reminded me of the former Example UI in scaffold-eth.

As an idea for some interactive content

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and it could look something like this: (I took the code from another thing)

With a code window like a codepen, and some buttons on the side.

[carletex]

Let's also hold on this until we have more #242 done