# Zemo - Your Web3 Inbox

**URL:** <https://forum.zcashcommunity.com/t/zemo-your-web3-inbox/41063>\
**Category:** Community Grants\
**Created:** [February 23, 2022, 8:54pm UTC](https://forum.zcashcommunity.com/t/zemo-your-web3-inbox/41063 "2022-02-23T20:54:44Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![Ziga](https://sea2.discourse-cdn.com/zcash/user_avatar/forum.zcashcommunity.com/ziga/32/17909_2.png) [@Ziga](https://forum.zcashcommunity.com/u/Ziga)\
**Post date:** [February 23, 2022, 8:54pm UTC](https://forum.zcashcommunity.com/t/zemo-your-web3-inbox/41063/1 "2022-02-23T20:54:44Z")

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Hey all!

We’re back at it again. Today, I’m very excited to announce that [we re-opened our proposal to build Zemo](https://grants.zfnd.org/proposals/504870068).

**What’s new?**  
We made some changes based on prior feedback. Our team is now leaner. And therefore the cost to build Zemo is lower.

 ![](https://global.discourse-cdn.com/zcash/original/3X/4/3/4337119a719df252e6df03e32d78c1d9d46d255f.jpeg)

# Applicant background

Our team collectively has 10+ years experience shipping Bitcoin, Zcash, and crypto applications. We have worked professionally on blockchain projects funded by world-class investors. We specialize in building decentralized applications that are easy to use. Chris is well known for building the server that powered OpenBazaar and Haven.

# Description of Problem or Opportunity

Shielded messaging has risen to become a popular use case in the Zcash community. In order to grow and expand this use case, we need apps that are specifically designed for messaging.

Many of us already send shielded messages to each other with small tips. We’ve found it’s a great way to onboard new users into the Zcash ecosystem. However, we’re still using apps that were designed for payments.

Zemo is messaging first, powered by Zcash.

 ![](https://global.discourse-cdn.com/zcash/original/3X/8/9/894e6a4610c7caf5dbd8d10c471f17838856d9cc.jpeg)  
(not actual Zooko messages)

# Proposed Solution

Zemo is your Web3 inbox powered by the Zcash blockchain. It’s the first Zcash mobile app created specifically for messaging. It’s monetizable, permissionless, open-source, decentralized, end-to-end encrypted, immutable and full self-custody – your keys, your messages.

Use Zemo to monetize your inbound messages and/or send private message.

# Solution Format

We’ll release Zemo as an Android & iOS app in the app stores that include: threaded conversations, basic user profiles (optional: avatar and name), payments, fast syncing, and intuitive UI/UX. We’ll also create a landing page at [https://zemo.app](https://zemo.app).

# Technical approach

The UI/UX design of Zemo will happen in-house by Ziga. We’ll share Figma prototypes with the community for feedback. This process has already started.

As for the code, we’re building the app on React Native. We’ll use ZECwallet’s code as a starting point to ensure the app syncs quickly and functions well.

In order to provide a better messaging experience, we’ll rework ZECwallet where needed. For example, each message will be encoded with the user’s display name, avatar hash from IPFS and z-address (optional, for replying).

To ensure there is interoperability between Zcash payment and messaging apps, we’ll coordinate with other wallet devs and ECC to ensure our approach is suitable for everyone to build upon.

All of our work will be released as open-source software on GitHub.

# How big of a problem would it be to not solve this problem?

Messaging is already a growing use case in the Zcash community. Not building apps that are designed for messaging is a missed opportunity. Zemo will grow and expand our community — one message at a time.

# Execution risks

Most of the challenging pieces for Zemo are around the messaging components. We’re going into this expecting some unexpected challenges to creep up. At worst, we expect this could slow us down, but hopefully not by too much.

# Unintended Consequences

If messaging turns out to be a popular use case, we run the risk of flooding the blockchain with micropayments. If L1 does not scale well, micropayments on Zcash may be priced out due to rising fees.

Theoretically, Zemo could eventually move to a L2, if needed.

# Evaluation plan

Upon completion, a user can send/receive private messages, view threaded conversations, send Zcash payments, set basic profile information (display name and avatar) and use Zemo as their Web3 monetizable inbox.

# Schedule and Milestones

Our team is available to start working on Zemo in March. We estimate the project will take 6 months to complete. Please see milestones for additional details.

# Budget

We’ve structured our milestones as monthly payouts to ensure each team member can cover their living expenses.

Monthly cost  
Staff: $30,000 x 6 months = $180,000

At 40hrs a week, the cost per person per hr is $93.75.

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_[View the full topic](https://forum.zcashcommunity.com/t/zemo-your-web3-inbox/41063)._
