Orbiter Finance is a decentralized cross-rollup Layer 2 bridge with a contract only on the destination side. It already supports transfer between zkSync and Arbitrum, the cost is low, and the process is instant.
 

In Orbiter Finance there are two roles, Sender and Maker. When the Sender initiates a transfer, the Maker provides liquidity for it. The smart contract ensures the security of this process. If the Maker does something bad and the transfer fails, the Sender can initiate an arbitration request to the contract with Maker’s margin and then get the excess compensation.
 

Orbiter Alpha has been launched, supporting cross-rollup transfers between ETH mainnet, zkSync, and Arbitrum. Even zkSync doesn’t support EVM yet, and Orbiter has implemented transfers across zkSync.

Read more about the project in this article.

Fundraising:

• The only information in the public domain is about the funds that invested in the project. TigerGlobal and Martixport led the round. At the moment, the amount of fees and the price at which these rounds of investment were valued is unknown;
• In January 2024, the project completed a Series A funding round led by OKX Venture. Also joining this round were venture companies such as Redpoint China, Hash Global, Skyland Ventures, Mask Network, Bas1s Ventures, Zonff Partners and others. The size of the investment is unknown.
   

Thoughts:
Bridges often give out airdrop tokens to early users. The team of this project went further and decided to launch an event in which, depending on the number of transactions, you will be given roles in their Discord, more about the process below: