How to use zkSync to donate to Gitcoin grant
First, make sure you have some ETH (on ethereum mainnet) in your wallet.
Then go and add the grants that you want to donate to the cart.

Key in the amount in ETH that you are happy to donate.

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Select Checkout with zkSync.

Connect your wallet and follow the instructions.
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What if it doesn't work? What if there is a bug?
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You can go to the zkSync application directly.
Go to this website below and sign the message to login.
Go back to the gitcoin checkout page and look for the wallet addresses.

Directly key in the amount to transfer and the wallet address. Hit transfer.

Check your transaction status here.
The zkSync chain is a little unstable. It can take hours to finalise the transaction.
After the transaction finalise, go fill up this form.