Mobile-First DeFi Challenge Description

ETH is an incredibly powerful technology - however, the full magic of the Ethereum ecosystem has yet to make its way to the world of 5.6 billion smartphone users. With Celo's EVM compatible mobile-first network - we're here to change that and we hope you'll join us in making the magic of crypto, mobile-first! There's a status quo in web3 and a status quo in mobile apps - let's explore what's possible with both.

Prompt

Build a DeFi DApp, tool, or mobile browser app that showcases the type of ingenuity and network effects seen in layer 2 projects currently only available on Ethereum. Build new products, fork a DApp, or innovate new ideas - and most importantly help make crypto accessible on mobile phones. This can be done through designing a native mobile DApp (with the help of DAppkit) or just designing an easy-to-use product for mobile web browsers.

Mega Prize Breakdown!

Prizes will be paid out in Celo's stable token cUSD. The total value of prizes provided by the Celo Foundation is $61k available to win for the best teams building mobile-friendly DeFi.

Here is the breakdown of prizes:

• 1 - 1st place project who receives $10,000
• 1 - 2nd place winner who receives $5,000
• 10 - 3rd place prizes each receiving $3,000

In addition to these prizes, anyone who builds a mobile DeFi project will automatically be entered into a competition for our hackathon's "Community Awards" listed below.

Bonus Points for Judging:

Integrating Moola Market, Ubeswap, or impactMarket

Community Award

The following Community awards will be given out once the hackathon has concluded after April 14th and the project submissions are evaluated by the judges and the Celo Community.

Can you make it tangible?

Let's say an individual or a team from Latin America builds an amazing mobile DeFi DApp with the intention to win the top prize of $10k cUSD.

Let's say that since they have experience in Latin America where Celo is very popular and they know that Tanda loan clubs are also very popular - they build a saving circle application where one depositor from the circle earns all the interest from the group’s deposits, per period of time.

Since this is a really cool idea, they win the first prize of the mobile DeFi bounty - which means they win $10k cUSD.

But their app is designed so well that the judges decide to also award them one of the regionally focused community awards - "Best LATAM Hack" - which is also worth $2k cUSD - So that team or individual will now walk away from this hackathon with at least $12k cUSD for building one great Defi DApp!

See more projects already built on Celo! Or check out our DApp Gallery!

Ideas to Kickstart Your Creativity

*These are just ideas, we don't want to limit you in any way. Below are concepts to help get the mental gears moving for you or your team.

• Redirecting the stream of interest earned on deposits to a charity platform such as Impact Markets UBI
• Mobile First NFT marketplace similar to https://opensea.io/ (can use Valora wallet or similar to streamline mobile UX) Workflow: uploading photo from phone and minting directly from the application using wallet integration...from there the sky's the limit.
• No-loss lottery similar to PoolTogether
• Or similarly, a saving circle application where one depositor from the circle earns all the interest from the group’s deposits, per period of time.
• Migrating an interest rate protocol like Swivel from Ethereum
• Setting up a yield farming play such as a mcUSD/mCELO Ubeswap pool
• Publishing an open-source liquidation bot
• Celo Options trading by porting Opyn
• Solutions for physical cards & credit cards
• Solutions for Merchants, points of Sales & inventory
• Saving - Interest, Microsavings, Gamified
• Lending - Credit Scoring, P2P Lending, Loan Groups, B2B Lending Solutions
• Local Economies & Local Currencies
• Decentralized Marketplaces
• Tokenized Assets
• Robo-advisor

Submission Requirements

• Submissions due by April 14th
• Public, open-source Github repo
• Build something that doesn't already exist on Celo and if it does bring a new spin to it
• Uniquely answer the question: what does DeFi (or an Ethereum native app) look like when it's designed for mobile-first?
• Elaborate on the potential for impact (Geography, target audience,)
• Demo video between 2-5 minutes submitted via README on project Github repo
• Your README can include all visual assets and write regarding your project
• Bonus Points:
  • Phone number identification
  • Link to a live interactive demo of your project
  • Integration with a mobile wallet (can be any; Valora recommended if not sure what to use)
  • Thorough documentation of your experience
  • Build something based on available Celo user research for evidence. What do people want? (not what do you think they want?)
    • https://medium.com/celoorg/how-the-grameen-foundation-successfully-delivered-humanitarian-aid-to-3-500-micro-entrepreneurs-2bb3d5b78ca9
    • https://medium.com/celoorg/field-notes-on-kenya-mobile-money-9eb285b52d2e
    • https://medium.com/celoorg/argentina-a-case-study-for-stablecoins-66abdbf526ae

Judging Criteria

A panel of judges ranging from VC perspectives to in-the-trenches builders like yourselves.

Judges will judge your hack and they will rate your project on a scale of 1-5 on the criteria below.

Your submission will be graded on the following criteria:

• Adherence to the Mobile DeFi challenge (E.g. how well does it solve the proposed problem)
• Creative, original and innovative
• Real-world use-cases (how practical is it)
• Technicality of implementation
• UI/UX Design

Bonus points for Judging:

Integrating: Moola Market, Ubeswap, or Impact market

Submissions Due - April 14th

Winners announced - April 22nd

Compensation may take up to 2 weeks after submission is accepted.

Developer Resources:

https://github.com/celo-org

https://docs.celo.org/v/master/developer-guide/start

https://docs.celo.org/v/master/developer-guide/overview

https://electric-capital.github.io/?p=/ecosystem/celo

Celo Tech Talk Series

KYC Requirements:

Successful applicants must undergo a compliance review which requires providing identity and other information to satisfy regulatory requirements. Payment of any bounty is contingent on the successful completion of this compliance review.

Using NFT Express, create a mobile app that allows users to mint NFTs on Celo

Challenge Description

Tatum is a fan of Celo. The fast transaction times, low gas fees, and full EVM compatibility. To celebrate Tatum and Celo's ongoing relationship, let’s do a bounty!

Using NFT Express build a mobile app with Celo that allows users to mint their own NFTs on the fly. Have you ever gotten the hankering to mint an NFT on a long flight? Well, make your dreams a reality!

Submission Requirements

Deliverable

• Completed GitHub repository linked in your Gitcoin submission.

Judging Criteria

The Celo team will pick the top 3 submissions if they meet the quality requirements.

• We do not expect submissions to be production quality!
• Clean, organized, high-quality code - You can use any language to build your NFT marketplace.
• Creativity/Ingenuity - How creative is your marketplace?
• Design - How usable is your marketplace? Did you spend time improving the UI and UX? How usable is your app? Did you spend time improving the UI and UX? Is there a consistent design language?
• Features - Which features have you added to the marketplace?
• Scope of Work - How much time and effort did it take to complete this project?
• Extra Media - Does the submission include images, screenshots, and/or videos?

Other Requirements

• All contributions/PRs to public (Celo) repositories should be open source and should follow the contributions rules of the relevant repository.
• All non-code documents should be using Markdown format.
• In the project description or repository readme, include a proper security notice. E.g., it should tell the visitor the project is not audited and should not be used in a production environment.

Funding Currency & Amount

Winning submissions will receive $1.5k worth of CELO or cUSD. A maximum of 3 submissions will be accepted.

Resources

The first 1,000 users who start building on Celo with Tatum will get all of the features of our Basic plans absolutely free for the first 3 months. That means you 200 API requests per second and 5,000,000 requests per month without paying anything out of pocket.

To apply for your free Basic plan, just sign up for a free API key in the Tatum Dashboard, fill out the application form below, and as soon as you’re approved, your Free plan will be upgraded to a Basic plan for the next 3 months!

Apply for 3-months free

• Sign up for API key
• How to get started
• Generating wallets with Tatum
• API documentation
• Create NFT with Tatum
• For any other questions, join the Tatum Discord.

One of Celo's community tenets is "designing for all" - We believe that, to create a truly inclusive financial system, we must begin by serving those who need it most. This community tenet is also the theme of our upcoming Kuneco Community All-Hands on Feb 18.

Share a video or blog post over social about what "designing for all" means to your community, and how Celo can help your community prosper.

Requirements

• Submit a URL to your social post
• Video - 1min+
• Blog post - 250+ words
• Share in your own words what "designing for all" means to your community, and how Celo can help your community prosper. Specify your community, its needs, and how Celo can meet those needs. Share your story with us!
• Personal share about a community's needs & how Celo can meet those needs
• Use #kuneco #prosperityforall, and tag @Celoorg

The first 20 submissions will receive 10 cUSD. Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool or via a Ledger hardware wallet.

Resources

• Celo community tenets
• About Celo

Design a Kuneco Kudos badge

Description

Kuneco means "togetherness" in Esperanto. Let's foster togetherness online through design.

Designing a badge for participants of Kuneco.

• This badge will be earned by attending Kuneco on Feb 18. It is a way to gift and acknowledge community participation in togetherness.

Submission: You will submit a URL to a public storage location with your submission. Create a badge design that is unique and uses the Celo Brandkit. Submissions will be reviewed and a winner chosen by the cLabs design team. Points for expressing togetherness!

Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool or via a Ledger hardware wallet.

Be aware that it may take two weeks to evaluate and payout bounty submissions.

Learn to send CELO and cUSD

Description

This bounty will send bounty hunters through this code example in the Celo docs. The purpose of this bounty is to help developers get acquainted with some of the basic features and tools in the Celo development environment.

This bounty will show developers how to install ContractKit, one of the core components of the Celo SDK, and use it to connect to the Alfajores testnet. From here, we will show how to access some of the core protocol contracts using ContractKit and use the SDK to read from and write to the Celo blockchain.

Time expectation

Expect this bounty to take a web developer familiar with Javascript and Node.js about 30 minutes. A web developer with blockchain experience should be able to complete this in less time.

Requirements

You will need to submit a URL to verify the completion of the bounty. The URL should link to a GitHub gist that includes the address that you used in the exercise (to look up activity on the Alfajores block explorer. With this address, we want to see token deposits from the faucet and two small transactions out of the account (1 CELO and 1 cUSD).

The first 20 submissions will receive 3 CELO. Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool or via a Ledger hardware wallet.

Resources

• This page has all of the information that you need to complete the bounty. https://docs.celo.org/developer-guide/start/hellocelo
• Celo Discord

Add your Celo project the the Electric Capital ecosystem repository

Challenge Description

Are you building something on Celo? If so, add your project's GitHub repository to the Electric Capital crypto ecosystem repository to help us track the health of our developer community.

Submission Requirements

• Submit the URL to a merged pull request for the addition of your repository
• The repository must be added to the celo.toml file
• The submitter of this bounty must be the author of the pull request

Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool, via a Ledger hardware wallet or with the Celo Wallet web app.

Time Expectation

• 5 minutes

Resources

• See this PR for an example of what we are looking for.
• [Video] Add your Repo to the Celo ecosystem - An Electric Capital Tutorial

Make an IG reel or tiktok

Challenge Description

Create a an IG Reel or a tiktok about one of the topics below:

Topic 1, Celo Rewards: Celo rewards is a governance-approved community rewards program and an awesome opportunity to earn Celo. Any confirmed phone number that has a balance over 10 cUSD can receive the rewards. Phone numbers can be confirmed in the Valora app.

Need some inspiration on how to explain the rewards?

Just think...How would you tell your mom about Celo Rewards? Your best friend?

Topic 2, Your Favorite Celo Project: We would love to know what projects built on Celo get you excited or inspired! Tell us about your favorite project built on Celo. Why is it your favorite? What made it stand out to you?

If you want to get an idea of most of the project out in the Celo community right now. You can learn more about projects built on Celo here or at celohub.org

Requirements:

1. Make an IG Reel or Tiktok
2. Add captions to your video.
3. Post to IG or Twitter. Tag @Celoorg and use the #MakeItMobile hashtag.
4. Submit the link to your video.
5. Only one topic can be used per submission.

Examples:

• 2010 Buying Pizza with Crypto
• Why join a hackathon
• First hackathon
• Keep Your Keys Safe

Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool, via a Ledger hardware wallet or with the Celo Wallet web app.

Video must adhere to our Celo code of conduct

This bounty will payout ~$15 equivalent of CELO at the time of review.

Celo Mobile Connect Hackathon - Mobile (Virtual)

Challenge Description

Celo is a blockchain project built for normal people. We want to make financial technology accessible and we believe that can be done by focusing on the mobile user experience.

Build the best mobile user experience you can for your dapp.

Submission Requirements

• Submissions must demonstrate running on a mobile device (android, ios, or chrome)

The winning project will have a well-design user interface, and a user experience that makes it easy for a mobile user to interact with the project.

The best project that is submitted will win.

We review the submissions as early as possible (sometimes immediately upon submission) to ensure prompt winner announcement and payout.

Be sure to submit your CELO address with your submission.

Prerequisites

What prerequisite knowledge does this bounty require? What specific topics does someone need to know about before they can start work? Is there setup required before they can begin work? If so, what do they need to do?

Time Expectation

The duration of the hackathon.

Category

Front End, Design

Project Type

• Contest - Multiple people can contribute, one person is paid

Permissions

• Permissionless: No approval required

Experience Level

Intermediate

Bounty Type

Prize

Funding Currency & Amount

2000 cEUR

Expiration

The bounty expires at 12pm CEST on April 3, 2022

Resources

https://github.com/celo-org/celo-progressive-dapp-starter - Get started building on Celo in 5 minutes.

https://github.com/celo-org/HackathonResources - Resources and tools to help you build dapps on Celo.

Might go down more

Celo Mobile Connect Hackathon - Climate Change (In-Person)

Challenge Description

Celo is a blockchain project built for normal people. Did you know Celo network has been carbon neutral since we launched mainnet on Earth Day in April 2020?

The Climate Change bounty is targeted at projects that are focused on solving Climate change through incentives, design, or creativity. (regenerative finance, refi)

Submission Requirements

• Submissions must have a climate focus as part of their project. Points will be awarded for smart contracts deployed to the testnet demonstrating your idea and application.

• The top project will include both an idea plus an implementation demonstrating a part of the solution.

We review the submissions as early as possible (sometimes immediately upon submission) to ensure prompt winner announcement and payout.

Be sure to submit your CELO address with your submission.

Prerequisites

No prerequisites needed.

Time Expectation

The duration of the hackathon.

Category

Project Type

• Contest - Multiple people can contribute, one person is paid

Permissions

• Approval Required: Bounty hunters should be approved before starting work

Experience Level

Advanced

Bounty Type

Prize

Funding Currency & Amount

2000 cEUR

Expiration

The bounty expires at 12pm CEST on April 3, 2022

Resources

https://github.com/celo-org/celo-progressive-dapp-starter - Get started building on Celo in 5 minutes.

https://github.com/celo-org/HackathonResources - Resources and tools to help you build dapps on Celo.

Share why you love Celo / Share your Celo story (personal)

Challenge Description

Share your Celo story or vision for prosperity for all.

Share your story on twitter or a video and post about how Celo can help your community, from your own standpoint, in your own local language. Video must be at least 90 seconds or tweets must be 500+ characters.
Some questions to consider, What specific issues in your community would you like to see solved with Celo? Imagine how your community would work if CELO was the local currency, how would things change? Why does Celo matter to your community? How do you connect with Celo’s community tenets?

Submission Requirements

Requirements:

1. Create the tweets or video
2. Post it on your own social media or twitter account
3. Use the hashtag #MakeItMobile hashtag when you post
4. Submit the link

Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool, via a Ledger hardware wallet or with the Celo Wallet web app.

[Content must adhere to our Celo code of conduct]

This bounty will payout ~$10 equivalent of CELO at the time of review.

Celo Mobile Connect Hackathon - Stablecoin (Virtual)

Challenge Description

Celo is a blockchain project built for normal people. We want to make financial technology accessible and we believe that can be done by introducing people new to the space to our algorithmic stablecoins cUSD, cEUR, cREAL.

This bounty is focused on the best project using a stablecoin as a core part of their project.

Submission Requirements

• Submissions must interact with, allow transacting with, and have a stablecoin component to their project and demonstrated in their application.

The winning project will interact with at least one Celo stablecoin (cUSD, cEUR, cREAL).

We review the submissions as early as possible (sometimes immediately upon submission) to ensure prompt winner announcement and payout.

Be sure to submit your CELO address with your submission.

Prerequisites

No prerequisites required.

Time Expectation

The duration of the hackathon.

Category

Project Type

• Contest - Multiple people can contribute, one person is paid

Permissions

• Permissionless: No approval required

Experience Level

Advanced

Bounty Type

Prize

Funding Currency & Amount

1000 cEUR

Expiration

The bounty expires at 12pm CEST on April 3, 2022

Resources

https://github.com/celo-org/celo-progressive-dapp-starter - Get started building on Celo in 5 minutes.

https://github.com/celo-org/HackathonResources - Resources and tools to help you build dapps on Celo.

Issue Title

Challenge Description

Be as descriptive as possible about what you want to see built. Challenges should be useful to Celo, but open-ended enough to allow for creativity from hackers.

Submission Requirements

What constitutes a valid/good submission to win the bounty? Would you like a demo included in the submission (Strongly Recommended)? What will help you determine whether a submission passed a threshold of acceptable quality? Please include any relevant code contribution guidelines/standards, etc. Is there any criteria?

How will we ultimately decide the winner/winners from all valid submissions? Typically clean successful PR merge? First valid submission received? Best submission meeting some criteria by the deadline?

We review the submissions as early as possible (sometimes immediately upon submission) to ensure prompt winner announcement and payout.

Prerequisites

What prerequisite knowledge does this bounty require? What specific topics does someone need to know about before they can start work? Is there setup required before they can begin work? If so, what do they need to do?

Time Expectation

Given someone has the expected prerequisites and knowledge, what is the expected time investment?

Category

Front End, Back end, Design, Documentation or Other

Project Type

• Traditional - One contributor, one person paid
• Contest - Multiple people can contribute, one person is paid
• Cooperative - multiple people can contribute, multiple people are paid

Permissions

• Approval Required: Bounty hunters should be approved before starting work
• Permissionless: No approval required

Experience Lever

Beginner, Intermediate or Advanced

Bounty Type

Bug, Feature, Improvement, Security, Documentation, Design, Code Review, Other

Funding Currency & Amount

How much cUSD or CELO should be attached to this bounty?

Expiration

When does this bounty expire? (if applicable)

Resources

Link any relevant resources (e.g. specific documentation, source code that may be useful)

Integrate in-game NFTs and an ERC-20 currency into a mobile game using Tatum's SDK for Celo

Challenge Description

Tatum is a fan of Celo. The fast transaction times, low gas fees, and full EVM compatibility. To celebrate Tatum and Celo's ongoing relationship, let’s do a bounty!

Integrate in-game items as NFTs, make your own in-game ERC-20 currency, generate wallets for your users, and create a stunning and immersive blockchain gaming experience on Celo.

Submission Requirements

Deliverable

• Completed GitHub repository linked in your Gitcoin submission.

Judging Criteria

The Celo team will pick the top 3 submissions if they meet the quality requirements.

• We do not expect submissions to be production quality!
• Clean, organized, high-quality code - You can use any language to build your NFT marketplace.
• Creativity/Ingenuity - How creative is your marketplace?
• Design - How usable is your marketplace? Did you spend time improving the UI and UX? How usable is your app? Did you spend time improving the UI and UX? Is there a consistent design language?
• Features - Which features have you added to the marketplace?
• Scope of Work - How much time and effort did it take to complete this project?
• Extra Media - Does the submission include images, screenshots, and/or videos?

Other Requirements

• All contributions/PRs to public (Celo) repositories should be open source and should follow the contributions rules of the relevant repository.
• All non-code documents should be using Markdown format.
• In the project description or repository readme, include a proper security notice. E.g., it should tell the visitor the project is not audited and should not be used in a production environment.

Funding Currency & Amount

Winning submissions will receive $1.5k worth of CELO or cUSD. A maximum of 3 submissions will be accepted.

Resources

The first 1,000 users who start building on Celo with Tatum will get all of the features of our Basic plans absolutely free for the first 3 months. That means you 200 API requests per second and 5,000,000 requests per month without paying anything out of pocket.

To apply for your free Basic plan, just sign up for a free API key in the Tatum Dashboard, fill out the application form below, and as soon as you’re approved, your Free plan will be upgraded to a Basic plan for the next 3 months!

Apply for 3-months free

• Sign up for API key
• How to get started
• Generating wallets with Tatum
• API documentation
• Create NFT with Tatum
• For any other questions, join the Tatum Discord.

Celo Mobile Connect Hackathon - Stablecoin (In-Person)

Challenge Description

Celo is a blockchain project built for normal people. We want to make financial technology accessible and we believe that can be done by introducing people new to the space to our algorithmic stablecoins cUSD, cEUR, cREAL.

This bounty is focused on the best project using a stablecoin as a core part of their project.

Submission Requirements

• Submissions must interact with, allow transacting with, and have a stablecoin component to their project and demonstrated in their application.

The winning project will interact with at least one Celo stablecoin (cUSD, cEUR, cREAL).

We review the submissions as early as possible (sometimes immediately upon submission) to ensure prompt winner announcement and payout.

Be sure to submit your CELO address with your submission.

Prerequisites

No prerequisites needed.

Time Expectation

The duration of the hackathon.

Category

Project Type

• Contest - Multiple people can contribute, one person is paid

Permissions

• Approval Required: Bounty hunters should be approved before starting work

Experience Level

Advanced

Bounty Type

Prize

Funding Currency & Amount

2000 cEUR

Expiration

The bounty expires at 12pm CEST on April 3, 2022

Resources

https://github.com/celo-org/celo-progressive-dapp-starter - Get started building on Celo in 5 minutes.

https://github.com/celo-org/HackathonResources - Resources and tools to help you build dapps on Celo.

Create a Celo Meme

Challenge Description

Calling all Meme lords, meme-ologists, and meme connoisseurs. Create a meme about Celo, relevant to Celo or the Celo community.

Requirements:

1. Create the meme
2. Post it to Twitter or any social media platform of your choice with hashtag #Celo and tagging @CeloOrg
3. Submit the link

Here are some examples:

• Fast blocks
• Jarrell from Celo
• Celo inclusion
• Celo rewards
• Kool Necos badge

Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool, via a Ledger hardware wallet or with the Celo Wallet web app.

This bounty will payout ~$5 equivalent of CELO for each meme at the time of review. If you are submitting multiple memes, please mash the links together in your submission URL. Max payout is for 2 memes.

BOUNTY: Copywriting request for integrating projects with Celo

Challenge Description

Write an article describing how to integrate Valora, Moola Market, Ubeswap, or Impact Market. You can find more information about these projects and what to include in the article here.

Goal: Nourish existing developers and get them excited about other projects that have been built on Celo and get them inspired to integrate or incorporate other projects into their own build.

Audience: Crypto- developers interested in building on Celo or who are currently building on Celo.

Submission Requirements

• Please provide a link to a writing sample when applying to work on this bounty
• A successful submission will be 600-800 words
• Use the Celo brand voice when writing the article

Resources

• Article requirements
• Celo brand voice when writing the article

Learn to deploy a smart contract on Celo

Description

This is a technical educational bounty. In this exercise, you will go through this code example to learn to deploy a Solidity smart contract on the Celo network. You will use the popular Ethereum tool, Truffle, to manage Solidity compilation and contract migration.

You will deploy the contract to the Alfajores testnet, so as part of the exercise you will learn how to get testnet funds from the faucet as well as how to remotely connect to the Alfajores network using Forno. By the end of this exercise, you will have deployed a contract to the testnet and will understand how to read and write to the deployed contract.

Requirements

You will need to submit a URL to verify the completion of the bounty. The URL should link to a GitHub pull request that adds a new file to the submissions folder here. The pull request should add a new file to the ./smart_contract_deployments folder that contains the address that you used in the exercise (more detail here), so we can look up activity on the Alfajores block explorer http://alfajores-blockscout.celo-testnet.org/. With this address, we want to see token deposits from the faucet and the HelloWorld.sol contract deployment.

Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool, via a Ledger hardware wallet or with the Celo Wallet web app.

We will be checking your GitHub account activity to verify that you are indeed a unique person and to ensure that the same user is not making multiple submissions. Your request will not be accepted if you do not have an active history on GitHub.

When you complete the bounty, please fill out this developer survey to help us learn more about the Celo developer community and create a better developer experience.

Be aware that it may take two weeks to evaluate and payout bounty submissions.

Resources

• This page has all of the information that you need to complete the bounty. https://docs.celo.org/developer-guide/start/hello-contract-remote-node
• Celo Discord
• Celo YouTube channel

What's next?

• Explore more bounties on Gitcoin
• Join the Celo Make It Mobile Hackathon
• Check out projects building on Celo
• Receive funding to build a project on Celo
• Keep learning

Issue Title

Challenge Description

Be as descriptive as possible about what you want to see built. Challenges should be useful to Celo, but open-ended enough to allow for creativity from hackers.

Submission Requirements

What constitutes a valid/good submission to win the bounty? Would you like a demo included in the submission (Strongly Recommended)? What will help you determine whether a submission passed a threshold of acceptable quality? Please include any relevant code contribution guidelines/standards, etc. Is there any criteria?

How will we ultimately decide the winner/winners from all valid submissions? Typically clean successful PR merge? First valid submission received? Best submission meeting some criteria by the deadline?

We review the submissions as early as possible (sometimes immediately upon submission) to ensure prompt winner announcement and payout.

Prerequisites

What prerequisite knowledge does this bounty require? What specific topics does someone need to know about before they can start work? Is there setup required before they can begin work? If so, what do they need to do?

Time Expectation

Given someone has the expected prerequisites and knowledge, what is the expected time investment?

Category

Front End, Back end, Design, Documentation or Other

Project Type

• Traditional - One contributor, one person paid
• Contest - Multiple people can contribute, one person is paid
• Cooperative - multiple people can contribute, multiple people are paid

Permissions

• Approval Required: Bounty hunters should be approved before starting work
• Permissionless: No approval required

Experience Lever

Beginner, Intermediate or Advanced

Bounty Type

Bug, Feature, Improvement, Security, Documentation, Design, Code Review, Other

Funding Currency & Amount

How much cUSD or CELO should be attached to this bounty?

Expiration

When does this bounty expire? (if applicable)

Resources

Link any relevant resources (e.g. specific documentation, source code that may be useful)

Learn to deploy a smart contract on Celo

Description

This is a technical educational bounty. In this exercise, you will go through this code example to learn to deploy a Solidity smart contract on the Celo network. You will use the popular Ethereum tool, Truffle, to manage Solidity compilation and contract migration.

You will deploy the contract to the Alfajores testnet, so as part of the exercise you will learn how to get testnet funds from the faucet as well as how to remotely connect to the Alfajores network using Forno. By the end of this exercise, you will have deployed a contract to the testnet and will understand how to read and write to the deployed contract.

Requirements

You will need to submit a URL to verify the completion of the bounty. The URL should link to a GitHub gist that includes the address that you used in the exercise (to look up activity on the Alfajores block explorer (http://alfajores-blockscout.celo-testnet.org/). With this address, we want to see token deposits from the faucet and the HelloWorld.sol contract deployment.

The first 20 submissions will receive 3 CELO. Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool or via a Ledger hardware wallet.

Resources

• This page has all of the information that you need to complete the bounty. https://docs.celo.org/developer-guide/start/hello-contract-remote-node
• Celo Discord

Celo Mobile Connect Hackathon - Barcelona/Spain Impact (Virtual)

Challenge Description

Celo is a blockchain project built for real people. Celo Connect is Celo's first flagship event bringing founders, friends, and believers from the community together.

We are grateful to be able to host our event in the city of Barcelona. Our Barcelona/Spain Impact bounty is for projects focused on helping people here in Barcelona or the people of Spain.

Submission Requirements

• Submissions must have a Barcelona / Spain local impact focus.

• The top project will include both an idea plus an technical implementation demonstrating a part of the solution.

We review the submissions as early as possible (sometimes immediately upon submission) to ensure prompt winner announcement and payout.

Be sure to submit your CELO address with your submission.

Prerequisites

No prerequisites needed.

Time Expectation

The duration of the hackathon.

Category

Project Type

• Contest - Multiple people can contribute, one person is paid

Permissions

• Approval Required: Bounty hunters should be approved before starting work

Experience Level

Advanced

Bounty Type

Prize

Funding Currency & Amount

1000 cEUR

Expiration

The bounty expires at 12pm CEST on April 3, 2022

Resources

https://github.com/celo-org/celo-progressive-dapp-starter - Get started building on Celo in 5 minutes.

https://github.com/celo-org/HackathonResources - Resources and tools to help you build dapps on Celo.

Celo Mobile Connect Hackathon - Barcelona/Spain Impact (In-Person)

Challenge Description

Celo is a blockchain project built for real people. Celo Connect is Celo's first flagship event bringing founders, friends, and believers from the community together.

We are grateful to be able to host our event in the city of Barcelona. Our Barcelona/Spain Impact bounty is for projects focused on helping people here in Barcelona or the people of Spain.

Submission Requirements

• Submissions must have a Barcelona / Spain local impact focus.

• The top project will include both an idea plus an technical implementation demonstrating a part of the solution.

We review the submissions as early as possible (sometimes immediately upon submission) to ensure prompt winner announcement and payout.

Be sure to submit your CELO address with your submission.

Prerequisites

No prerequisites needed.

Time Expectation

The duration of the hackathon.

Category

Project Type

• Contest - Multiple people can contribute, one person is paid

Permissions

• Approval Required: Bounty hunters should be approved before starting work

Experience Level

Advanced

Bounty Type

Prize

Funding Currency & Amount

2000 cEUR

Expiration

The bounty expires at 12pm CEST on April 3, 2022

Resources

https://github.com/celo-org/celo-progressive-dapp-starter - Get started building on Celo in 5 minutes.

https://github.com/celo-org/HackathonResources - Resources and tools to help you build dapps on Celo.

Celo Mobile Connect Hackathon - Mobile (In-Person)

Challenge Description

Celo is a blockchain project built for normal people. We want to make financial technology accessible and we believe that can be done by focusing on the mobile user experience.

Build the best mobile user experience you can for your dapp.

Submission Requirements

• Submissions must demonstrate running on a mobile device (android, ios, or chrome)

The winning project will have a well-design user interface, and a user experience that makes it easy for a mobile user to interact with the project.

The best project that is submitted will win.

We review the submissions as early as possible (sometimes immediately upon submission) to ensure prompt winner announcement and payout.

Be sure to submit your CELO address with your submission.

Prerequisites

What prerequisite knowledge does this bounty require? What specific topics does someone need to know about before they can start work? Is there setup required before they can begin work? If so, what do they need to do?

Time Expectation

The duration of the hackathon.

Category

Front End, Design

Project Type

• Contest - Multiple people can contribute, one person is paid

Permissions

• Approval Required: Bounty hunters should be approved before starting work

Experience Level

Intermediate

Bounty Type

Prize

Funding Currency & Amount

2000 cEUR

Expiration

The bounty expires at 12pm CEST on April 3, 2022

Resources

https://github.com/celo-org/celo-progressive-dapp-starter - Get started building on Celo in 5 minutes.

https://github.com/celo-org/HackathonResources - Resources and tools to help you build dapps on Celo.

Celo Mobile Connect Hackathon - Climate Change (Virtual)

Challenge Description

Celo is a blockchain project built for normal people. Did you know Celo network has been carbon neutral since we launched mainnet on Earth Day in April 2020?

The Climate Change bounty is targeted at projects that are focused on solving Climate change through incentives, design, or creativity. (regenerative finance, refi)

Submission Requirements

• Submissions must have a climate focus as part of their project. Points will be awarded for smart contracts deployed to the testnet demonstrating your idea and application.

• The top project will include both an idea plus an implementation demonstrating a part of the solution.

We review the submissions as early as possible (sometimes immediately upon submission) to ensure prompt winner announcement and payout.

Be sure to submit your CELO address with your submission.

Prerequisites

No prerequisites needed.

Time Expectation

The duration of the hackathon.

Category

Project Type

• Contest - Multiple people can contribute, one person is paid

Permissions

Experience Level

Advanced

Bounty Type

Prize

Funding Currency & Amount

1000 cEUR

Expiration

The bounty expires at 12pm CEST on April 3, 2022

Resources

https://github.com/celo-org/celo-progressive-dapp-starter - Get started building on Celo in 5 minutes.

https://github.com/celo-org/HackathonResources - Resources and tools to help you build dapps on Celo.

Create an NFT marketplace using Tatum's APIs to integrate Celo

Challenge Description

Tatum is a fan of Celo. The fast transaction times, low gas fees, and full EVM compatibility. To celebrate Tatum and Celo's ongoing relationship, let’s do a bounty!

Leverage Tatum’s prebuilt NFT and marketplace smart contracts to build a truly awesome NFT marketplace integrating Celo, with a streamlined user experience and a dazzling user interface. Integrate royalty NFTs and Tatum’s Gas Pump to pay for your users’ gas fees. The Celo team will select the top 5 submissions.

Submission Requirements

Deliverable

• Completed GitHub repository linked in your Gitcoin submission.

Judging Criteria

The Celo team will pick the top 3 submissions if they meet the quality requirements.

• We do not expect submissions to be production quality!
• Clean, organized, high-quality code - You can use any language to build your NFT marketplace.
• Creativity/Ingenuity - How creative is your marketplace?
• Design - How usable is your marketplace? Did you spend time improving the UI and UX? How usable is your app? Did you spend time improving the UI and UX? Is there a consistent design language?
• Features - Which features have you added to the marketplace?
• Scope of Work - How much time and effort did it take to complete this project?
• Extra Media - Does the submission include images, screenshots, and/or videos?

Other Requirements

• All contributions/PRs to public (Celo) repositories should be open source and should follow the contributions rules of the relevant repository.
• All non-code documents should be using Markdown format.
• In the project description or repository readme, include a proper security notice. E.g., it should tell the visitor the project is not audited and should not be used in a production environment.

Funding Currency & Amount

Winning submissions will receive $1.5k worth of CELO or cUSD. A maximum of 3 submissions will be accepted.

Resources

The first 1,000 users who start building on Celo with Tatum will get all of the features of our Basic plans absolutely free for the first 3 months. That means you 200 API requests per second and 5,000,000 requests per month without paying anything out of pocket.

To apply for your free Basic plan, just sign up for a free API key in the Tatum Dashboard, fill out the application form below, and as soon as you’re approved, your Free plan will be upgraded to a Basic plan for the next 3 months!

Apply for 3-months free

• Sign up for API key
• How to get started
• Generating wallets with Tatum
• API documentation
• Create NFT with Tatum
• For any other questions, join the Tatum Discord.

Learn to send CELO and cUSD

Description

This bounty will send bounty hunters through this code example in the Celo docs. The purpose of this bounty is to help developers get acquainted with some of the basic features and tools in the Celo development environment.

This bounty will show developers how to install ContractKit, one of the core components of the Celo SDK, and use it to connect to the Alfajores testnet. From here, we will show how to access some of the core protocol contracts using ContractKit and use the SDK to read from and write to the Celo blockchain.

Time expectation

Expect this bounty to take a web developer familiar with Javascript and Node.js about 30 minutes. A web developer with blockchain experience should be able to complete this in less time.

Requirements

You will need to submit a URL to verify the completion of the bounty. The URL should link to a GitHub gist that includes the address that you used in the exercise (to look up activity on the Alfajores block explorer. With this address, we want to see token deposits from the faucet and two small transactions out of the account (0.0000000000001 CELO (10^-13) and 0.0000000000001 cUSD).

Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool, via a Ledger hardware wallet or with the Celo Wallet web app.

We will be checking your GitHub account activity to verify that you are indeed a unique person and to ensure that the same user is not making multiple submissions. Your request will not be accepted if you do not have an active history on GitHub.

When you complete the bounty, please fill out this developer survey to help us learn more about the Celo developer community and create a better developer experience.

Be aware that it may take two weeks to evaluate and payout bounty submissions.

Resources

• This page has all of the information that you need to complete the bounty. https://docs.celo.org/developer-guide/start/hellocelo
• Celo Discord
• Celo YouTube channel

What's next?

• Explore more bounties on Gitcoin
• Join the Celo Make It Mobile Hackathon
• Check out projects building on Celo
• Receive funding to build a project on Celo
• Keep learning

One of Celo's community tenets is "designing for all" - We believe that, to create a truly inclusive financial system, we must begin by serving those who need it most. This community tenet is also the theme of our upcoming Kuneco Community All-Hands on Feb 18.

Share a video or blog post over social about what "designing for all" means to your community, and how Celo can help your community prosper.

Requirements

• Submit a URL to your social post
• Video - 1min+
• Blog post - 250+ words
• Share in your own words what "designing for all" means to your community, and how Celo can help your community prosper. Specify your community, its needs, and how Celo can meet those needs. Share your story with us!
• Personal share about a community's needs & how Celo can meet those needs
• Use #kuneco #prosperityforall, and tag @Celoorg

The first 20 submissions will receive 10 cUSD. Make sure to submit a Celo address (not an Ethereum address) on the bounty submission page. As Celo is a mobile-first blockchain, we suggest you install Valora to create a new Celo account, but you can also create an account using the command line tool or via a Ledger hardware wallet.