I show you how to set up Metamask to use the Xdai chain.
I highlight very quickly some dapps you can use on the Xdai chain.
Here is the article that have all the information you need to add details into Metamask
https://blog.realt.co/what-is-xdaichain-ae72fd48e511
And if the realt platform caught your interest, i will cover it soon in a tutorial.
https://realt.co/cryptosetups/ref/jojota1/
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