Spike for fiat checkout

[thelostone-mc]

Problem

There is a usecase where are looking at being able to onboard users to allocate to rounds via fiat sources.
The flow we are imagining right now :

• Ability to create a wallet (maybe magic.link / something along those lines)
• using onramp to top up wallet
• And then have the user sign the transaction
• And we need to be able to have a unique identifier for each user

Questions :
When we create a wallet for the user, when it comes to funding the wallet

• If we were use something like onramp which doesn't support fiat -> contract interaction. Is it possible to support users allocating in ERC20 tokens (new users won't have fees)
• If we use something like transak which takes this into account and allows fiat -> direct contract, Allo.allocate would be invoked by the transak contract. In that sceanrio how would we differentiate between users