https://github.com/getAlby/sandbox

We built an open-source developer sandbox for experimenting with Bitcoin Lightning payments.

It gives you an instant preloaded test wallet and lets you try different payment scenarios right away — no signup, no configuration.

You can: - trigger common payment flows - copy/paste example prompts for coding agents - drop ready-to-use code snippets into your own app

Once you’re ready to go live, you can switch to a real wallet without changing any code.

I’m around and would love feedback on what’s useful, confusing, or missing.