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Overview

Decentralized social built with Nostr and powered by Starknet account abstraction.

Origin story

The name "Joyboy" is inspired by the character from the manga series "One Piece". Joyboy is a mysterious figure from the Void Century who left behind a treasure called the "One Piece". What if the treasure is the friends we made along the way? A decentralized social network should be a treasure trove of memories and connections.

Also, Joyboy refers to a figure in the Caribbean mythology, a dancing god with a constant smile.

Joyboy is considered as the personification of freedom and joy.

Yes! This is what social networks should be about. A place where you can be yourself, express your thoughts and feelings, and connect with others.

Freedom requires censorship resistance, and Nostr provides exactly that.

Contribute

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Tech stack:

• Starknet smart contracts in Cairo - Learn Cairo now
• React Native for the mobile app - Learn React Native now
• Typescript for the Nostr relayer - Learn Typescript now

Roadmap

• Cairo implementation of Nostr signature verification
• Starknet account contract implementation, controlled by Nostr keypair
• Joyboy landing page
• SocialPay feature to send and receive tips through Nostr signed messages
• Implement a full Nostr client application with Starknet integration
• Run Nostr relay server
• Crossover with Vault to bring Social features to the Vault application

Architecture

Tips

There are two alternatives: WalletConnect, one which expects Nostr users to set up oridinary Starknet wallet like Argent or Braavos, and so called SocialPay which uses custom Account Abstraction contract based on bip340 signature scheme (Nostr native).

Wallet Connect

Tip to a recipient that never accepted the tip and don't have an account on SN

sequenceDiagram
    actor Alice
    actor Bob
    participant backend as Backend
    participant transfer as Deposit Contract
    participant erc20 as ERC20
    
    Note over Alice,erc20: Alice tip is escrowed by the Deposit Contract
    activate Alice
    Alice->>erc20: approve(Deposit Contract, x)
    Alice->>transfer: transfer(Bob Nostr Address, x)
    transfer->>erc20: transferFrom(Alice, Deposit Contract, x)
    transfer->>Alice: deposit_id
    deactivate Alice


    Note over Alice,erc20: Bob claims the tip with his Nostr identity
    activate Bob
    Bob->>backend: claim(deposit_id)
    Note right of Bob: deposit_id is signed<br/> with Nostr key
    backend->>transfer: claim(deposit_id)
    transfer->>erc20: transferFrom(Transfer Contract, Bob, x)
    deactivate Bob 

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Tip to a recipient that earlier accepted the tip

sequenceDiagram
    actor Alice
    participant transfer as Deposit Contract
    participant erc20 as ERC20
    
    activate Alice
    Alice->>erc20: approve(Deposit Contract, x)
    Alice->>transfer: transfer(Bob Nostr Address, x)
    Note left of transfer: Deposit Contract knows<br/> Bob's SN address
    transfer->>erc20: transferFrom(Alice, Bob, x)
    deactivate Alice

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SocialPay

Alice sends tokens to Bob

sequenceDiagram
    actor Alice
    actor Bob
    participant SocialPay gateway
    participant Starknet Node
    participant Alice Account
    participant STRK Token

    Alice->>SocialPay gateway: @joyboy send 10 STRK to @bob
    activate SocialPay gateway
    SocialPay gateway->>Starknet Node: SocialPay transaction
    Starknet Node->>Alice Account: SocialPay handler
    Alice Account->>STRK Token: transfer
    Starknet Node->>SocialPay gateway: SocialPay transaction complete
    SocialPay gateway->>Bob: @bob you just received 10 STRK from @alice
    SocialPay gateway->>Alice: @alice transfer of 10 STRK to @bob is complete
    deactivate SocialPay gateway

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Modules

Onchain

The onchain components of the project are implemented as a suite of Starknet smart contracts.

Build

To build the project, run:

scarb build

Test

To test the project, run:

snforge test

Mobile

The Joyboy Mobile app is built with React-native & Expo. Current version

Mobile repo

Pick an issue with the labels "mobile" to start work on React-native and contribute!

Test

To test the mobile app, run:

cd JoyboyCommunity
yarn install
yarn start

Select Expo web, Android or IOS. You can scan it with Expo GO on your phone.

Resources

• Starknet
• Nostr
• Nostr Implementation Possibilities
• JoinStr: Decentralized CoinJoin Implementation Using Nostr
• Smart Vaults - Bitcoin multi-custody signature orchestration - website
• Smart Vaults - Bitcoin multi-custody signature orchestration - repo

Contributors ✨

Thanks goes to these wonderful people (emoji key):

Abdel @ StarkWare 💻	Maciej Kamiński @ StarkWare 💻	MSG 💻	Catherine Jonathan 💻	Ayush Tomar 💻	Mubarak Muhammad Aminu 💻	Uğur Eren 💻
Oshioke Salaki 💻	Bhavya Gosai 💻	BlackStarkGoku 💻	IsraelRex 🎨	Emmaunuel Ejembi 💻	Abdulhakeem Abdulazeez Ayodeji 💻	Joseph Chimebuka 💻
omahs 💻	Caleb 💻	Ben Ickah 💻	Emmanuel Soetan 💻	princeibs 💻	goofylfg 💻	lfg2 💻
Collins Ikechukwu (devcollins) 💻	petersssong 💻

This project follows the all-contributors specification. Contributions of any kind welcome!