# EPF - Update #2

**Published by:** [plusminushalf.(eth/lens) 🦇🔊](https://paragraph.com/@plusminushalf/)
**Published on:** 2022-11-28
**URL:** https://paragraph.com/@plusminushalf/epf-update-2

## Content

Since my last update, I have worked on a few things & have explored a few paths for implementing the extension.I started setting up the Extension Repo, I will be using Preact for the extension due to its size and performance over React in restricted environments like chrome-extension. https://github.com/plusminushalf/epf-wallet While setting the repo with crxjs.dev/vite-plugin I came across an issue in the library, I did raise a PR with the fix and it will be available in the next release. Untill the version is released we will be working with a beta release of the npm package. You can read more about the fix below https://github.com/crxjs/chrome-extension-tools/pulls?q=is:pr+is:closedI explored the challenges that we will face if we will be building the 4337 wallet over Metamask Snaps. I have documented them in the link below. https://hackmd.io/AdDOFvf8QsKAfTfmX23jLw?viewI explored the Tally ho chrome extension, and how it stores private keys in a secure manner. I have documented my research at https://mirror.xyz/plusminushalf.eth/vtRuTou-XjWjQvkigtRrTjKeQ3ZKx5ujyUFZ-W_2s74I along with Jayesh, finalised the user flow of the extension and the role of guardians in the default-specific wallet implementation. You can find both attached below.User FlowRole of Guardians in various actions.The Figma file for the same can be found below https://www.figma.com/file/GASw8N72JnozdT2FxIlLgA/4337---Wallet-design-flow?node-id=61:142&t=nkQt8xtJFkgzBv4V-0

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