OP Stack

I'm looking for a simple example of using `L1CrossDomainMessenger` to move tokens/NFTs for a @safe on L1 to the aliased address on the /op-stack. @bountybot 

0.125 ETH or equivalent on L2

Success criteria:
1. Safe on L1 with aliased address on L2
2. NFT and/or ERC20 tokens in the aliased address on L2
3. Execute a tx cross-chain via Safe to move the NFT/token to any other address

Demo can be on Sepolia and Base/OP Sepolia with a Safe you control. Specifically looking to understand the message required to execute this transfer on the L2 address.

Base contracts
https://docs.base.org/docs/base-contracts

Possibly relevant docs
https://docs.optimism.io/connect/resources/glossary#address-aliasing
https://docs.optimism.io/builders/app-developers/tutorials/cross-dom-solidity

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Been a minute since I read those docs, but I think you might need to use the portal contract directly instead of xDM. 

I assume you want these to happen in separate transactions for clarity?

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Ok I bridged an ERC721 to base, then tried transferring it out of the canonical bridged 721 implementation. Sending a message to it via xDM didn't have permissions to move the token from the aliased address, but transacting directly through the portal did. I'll make a thread with some tx links here.

Interesting! Yeah, likely multiple txs for the whole flow. With one tx to execute transferring out of the L2 aliased address.