Cross Chain DAO Tutorial

[jboetticher]

Description

Added a tutorial on the smart contracts & design of a cross-chain DAO.

I tried slimming it down a little from its draft version, but it might have ended up longer due to the extra images. This is what I tried to focus on:

• Architecture
• Focus on problems & options
• How a DAO works
• Special parts that are changed in the conversion from single chain to cross chain DAO

This is what I tried to omit:

• Using hardhat
• Testing / deploying

The tutorial is likely still hard to follow, and some things might only make sense to me because I wrote the smart contracts, so feel free to leave critiques on structure and explanations.

Draft Description:

The tutorial is currently massive and hard to follow, so I'm looking into ways to slim it down and add additional visuals to help explain the architecture and potential alternate architectures better. It's also very rough as I could feel my mind melting near the end.

Feel free to ignore this draft PR if you don't want to provide feedback on it yet, but if you have a lot of time to quickly gloss over it to simply tell me what parts were most confusing, it would be helpful. But don't do it too fast... I need a break from this 😧

Checklist

• If this requires translations for the moonbeam-docs-cn repo, I have created a ticket for the translations in Jira
• If images have been added, I have run the compress-images.py script to compress the images.
• If this page requires a disclaimer, I have added one

After Translation Requirements

• Will need to create PR in moonbeam-docs repo to remove images
• Will need to create PR in moonbeam-docs repo to remove variables
• Will need to create PR in moonbeam-mkdocs repo to add redirects for Chinese site
• No additional PRs are required after the translations are done

Items to be Updated

Please list any of the items that will need to be added or deleted after the translations are done here.

[jboetticher]

Here's a neat trick to improve the function selectors, so that you don't have to double wrap with abi.encode

https://github.com/LayerZero-Labs/solidity-examples/blob/6d463b7d5f2da6ff0872d443341f468f3a56fc55/contracts/token/oft/OFTCore.sol#L40

[jboetticher]

I tried slimming it down a little from its draft version, but it might have ended up longer due to the extra images. This is what I tried to focus on:

• Architecture
• Focus on problems & options
• How a DAO works
• Special parts that are changed in the conversion from single chain to cross chain DAO

This is what I tried to omit:

• Using hardhat
• Testing / deploying

The tutorial is likely still hard to follow, and some things might only make sense to me because I wrote the smart contracts, so feel free to leave critiques on structure and explanations.

[eshaben]

wouldn't the snapshot be taken before it is sent to the spoke chain?

[eshaben]

@albertov19 this is ready for you to review now if you wanna take a look 👀

[eshaben]

LGTM

[albertov19]

LGTM!

@eshaben do you feel we should organize the left hand side navigation to be alphabetical? If so, connected contracts should be above XCM

[albertov19]

Also I did do a commit, please review :)

[albertov19]

LGTM! Great job