Across is the fastest, cheapest and safest bridge between L1 and L2
This interaction cost 70u, minimum cross-chain amount 0.1ETH
Official Twitter：(17) Across (@AcrossProtocol) / Twitter
Official discord：Across Protocol (discord.com)
Open the website and connect your wallet
L1 to L2 cross-chain
'From' select ETH, fill in the cross-chain amount, 'To' select Arbiturm or Optimism, here select Arbitrum.
It is recommended that the cross-chain amount is larger, 0.1ETH to start with, because according to my interactive findings, step 3 L2 to L1 cross, the minimum required amount is 0.1ETH, because the fee is the same.
Click Send to send
The cross-chain is successful, and the funds will arrive in about 10 minutes
L2 to L1 cross-chain
’From‘ select Arbitrum, enter the cross-chain amount, ’to‘ select ETH
Click Send
Successful recharge, estimated arrival time 2 minutes
Adding Pool
Click the 'Poll' button at the top to go to the pool page
Click 'ADD', enter the number of ETH to be added to the pool, and click 'Add Liquidity'
This interaction is complete