Please note, not all challenges are submitted on Devpost. If you don't see the challenge you're submitting for here, check the live site and your inbox to see where you should claim your points. 

What is Local Hack Day: Build 2022?

Local Hack Day: Build is your opportunity to spend a week focused on creating and developing the projects you’ve always wanted to tackle. In accepting this quest, you are in for an adventure featuring workshops, fun mini-events, challenges, panels, and more. These will help you to earn experience points no matter what level of hacking you are at, whether it’s writing your first lines of code or creating a multi-faceted project.

We will be bringing back all of your favorite features from Local Hack Day Learn, Build, and Share 2021 like challenges, live technical sessions with MLHers, mini-events galore, and some cool content from our partners! Here’s a sneak peek:

  • Beginner-friendly workshops

  • Challenges for all difficulty levels and all topics such as design, social, technical, entrepreneurial

  • Hacker-run guilds

  • Talks from friends of MLH and our partners

  • Live sessions run by MLHers

  • And maybe an appearance from Totally Not Ryan (TNR)

Can I get swag at this event?

Yes, of course! LHD: Build will feature some amazing 2022 Hackathon Season swag…you’ll have to participate to find out exactly what you’re getting! 

What is a Guild? How can I be a part of it?

One of the best parts of our community is that it allows people to meet and make connections with others, regardless of where you live. guilds are smaller communities within Major League Hacking. Whether you come in with a guild or not, you won’t be hacking alone. 

Who organized Local Hack Day?

Local Hack Day is organized by Major League Hacking (MLH). It is our mission to empower hackers worldwide by providing them with the tools, resources, and opportunities they need to succeed. 


Your challenge submission must be completed within the submission period.

When relevent, your code must be available in some sort of public repository. 

If you're continuing work on an old project, you MUST specify in your Devpost what was worked on 1) before this day one of Local Hack Day: Build 2022 and 2) during day day of Local Hack Day: Build 2022.  

Hackathon Sponsors


Implement a cipher

Yesterday, we had to encrypt a password. Today, we want you to learn how to use a cipher. You can write code for one or even learn about pen and paper ciphers! Share it with us on the Day 4 Devpost.

Build a Translator

The hacker community is incredibly diverse, so we’d love to see you create something to aid communication around the world. Build an application to help translate between languages - you could translate sign language or spoken languages! Submit your hack on our Day 4 Devpost!

Create a hack that uses a queueing system

Create a hack that involves a queueing system! It could be a chat application that puts people in line to talk with one person, an application to manage video doctor visits, or any other online “line” that you can think of. You don’t need to wait in line to submit on the Day 4 Devpost.

Build a twitter bot

Need to keep up with twitter when you’re offline? Create a twitter bot! Don’t tweet it at us though, submit it on the Day 4 Devpost.

Create a Web Scraping Application that helps your Community

We know hackers always want to learn web scraping at hackathons, so we want to encourage you to explore this subject during LHD. Your project could scrape class data to help students plan their course schedule, look into grocery store prices to compile the best sales, or anything else that you can share with your community to help others out. Submit on our Day 4 Devpost!

Build an online auction system

Create a way to run an auction online - think about managing bids and items, and how you’ll notify winners. Going once, going twice! Sold to the Day 4 Devpost.

Build a Recipe tracker

Find a way to keep track of recipes you’ve made, want to make, or even have created yourself! The recipe for a perfect submission is on the Day 4 Devpost.

Get Started with DeSo

Are you curious to learn more about Web3 and how you can make your own decentralized social media platform? Follow along with the DeSo dev environment setup documentation [ ] and get started towards building your very own decentralized social network on DeSo. Don't forget to submit your project to our day-of Devpost!

Build your own AI with MATLAB

Ever wanted to make an AI-based project but didn’t know how to get started? MATLAB is a great tool for AI modeling and can be used to build things like a movie recommendation system for instance. Check out how these hackers [ ] got it done and wow us with your very own AI project using MATLAB. Submit to our day-of devpost to earn some points!

Add a Readme to a Project You Have on GitHub

You could have the greatest code in the world but if your project repo is missing a detailed readme, would-be users are unlikely to demo your application. We want you to write and commit a readme to any of your GitHub projects, explaining what your code does, how you came up with the idea and instructions for use. Remember to submit your work to our day-of Devpost!

Install Cloudron on Linode

Cloudron is a platform that makes it easy to deploy, install, manage and secure web apps on a server! Sign up for $100 worth of Linode credits [] and follow along with this tutorial [ ] to get your application up and running on Cloudron. Share your project with us on our day-of Devpost.

Deepgram Mashup Challenge

Build better voice applications with faster, more accurate transcription with our Speech Recognition API. Build a project which uses both Deepgram's API and another, non-Deepgram API. Sign up at Remember to submit your challenge on our Day of Devpost

Devpost Achievements

Submitting to this hackathon could earn you:


Major League Hacking

Major League Hacking

Judging Criteria

  • None
    Local Hack Day: Build is about celebrating our love for learning. Instead of judging projects and awarding prizes, we are giving out points to hackers who complete these challenges.

Questions? Email the hackathon manager

Tell your friends

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.