ZkSync is a ZK rollup, a trustless protocol that uses cryptographic validity proofs to provide scalable and low-cost transactions on Ethereum. ZkSync Era is currently only available on testnet for the general public.
Steps on how to participate in Zksync Era testnet:
Remember to be showing your test networks in your wallet.
Change the network to Goerli test network.
If you don't have goerli eth go to https://goerlifaucet.com, create an account, paste your address and click send.
Enter to https://goerli.portal.zksync.io/bridge and connect your wallet.
Write 0.05 and click Deposit. Approve the transaction.
You could also use https://goerli.portal.zksync.io/faucet to add some other zksync testnet tokens such as stablecoins.
Go to https://chainlist.org/chain/280 and click Add to Metamask.
Change your network to Zksync Era testnet.
First Dapp to try: @spacefi_io
Let's do at least 10 swaps.
Second Dapp: @NexonFi
Go to https://testnet.nexon.finance and connect your wallet.
Click ETH and select 25%. Then click use as collateral and approve.
Finally click Supply and approve.
If you want you could also try borrowing or withdrawing.
Third Dapp: @Orbiter_Finance
Go to https://rinkeby.orbiter.finance/?source=zkSync Era(G)&dest=Görli and connect your wallet.
Write 0.01 and click SEND. Then CONFIRM AND SEND. Approve.