# EIF Week 4 - This week I explored the metamask snaps repo - Read about the restricted and un-restricted rpc methods - Learned about `endowments` a.k.a permissions - How Snaps are isolated from actual metamask operations etc... - I learned how to create snaps and build UI using Snaps-UI - One of the blockers here is that there is no rpc methods for providing signature insights. - I have been using Alchemy SDK as of now to speed up the development process - Using AlchemySDK has its own pros and cons - Limitation on the number of requests (ERC721 are not working because of this) - Trust on Alchemy's service for simulation etc... - My plan is to later allow anyone to spin up their own simulator and gets logs, or another way I could think of was providing everyone with `executionId` which could be used to look up logs of the execution like we can for build logs. - Prepare for EIF mid-check-in