Hacktoberfest 2021

Happy Hacktoberfest everyone! We are so excited to be participating in Hacktoberfest again this year. At Camunda, we believe that open source can help unlock the full potential of process automation. We want everyone to be able to create and share BPMN processes with others on the web and without restrictions. 


Participants who complete the Camunda challenge from October 1-31 will earn a limited edition Camunda x Hacktoberfest 2021 t-shirt as well as nifty stickers.

This year we are so excited to showcase bpmn.io, Camunda Modeler, and the Camunda Community Hub

The bpmn.io project provides tools to view and edit BPMN, DMN and CMMN diagrams, as well as Forms in your browser. We’ve initiated bpmn.io as an effort to provide the best open source BPMN tools possible.

Camunda Modeler is a user-friendly desktop application that gives developers powerful features for designing and deploying automated processes, human workflows, decision tables, and decision requirements diagrams using the globally recognized BPMN and DMN standards.

The Camunda Community Hub is a community of maintainers and Camunda employees that provides peer support, automation and discoverability. This GitHub organization serves as a single place to find Camunda open source community-contributed extensions. 

We will also be hosting a special Community Contribution Question Corner on October 28. During this online event we will discuss Hacktoberfest, contributing in the open source community, and more! If you’ve been looking to learn more about how you can get more involved in open source or what Hacktoberfest means, this one’s for you! Learn more and register here

How to Participate

To earn your very own limited edition 2021 CamundaxHacktoberfest t-shirt here’s what you need to do:

  1. Submit four quality pull requests to any Camunda repo including participating* Camunda Community Hub repos. 

*Not all community maintainers are participating in Hacktoberfest. Check the repos for hacktoberfest labels to see who is participating.

  1. Once all four of your PRs have received the hacktoberfest-accepted label, fill out the form below with links to your PRs.
  2. Your submission will be reviewed and if approved you will receive a follow up email asking for your information.  

Our Advice

  • If you don’t respond to a request for changes within 7 days, your PR will be closed.
  • Your PR doesn’t have to be code-heavy. Documentation improvements are always welcome.
  • Read the project’s contributor guide/CONTRIBUTING.MD page before getting started to understand how to write a PR that will pass any automated testing in place in the project, which will make it more likely to be accepted.
  • Have a plan for what you’d like to accomplish when submitting a PR to a project in the Camunda Community Hub.
  • Strive to adhere to our communication guidelines and expectations.
  • Review the Hacktoberfest Resources page for more information regarding Hacktoberfest.

Ways to Contribute

Whether you are a seasoned open source professional, an enthusiastic community contributor, or dipping your toe in for the very first time, there is an opportunity to participate in Hacktoberfest.

Here are some ideas:

We have issues in our repositories tagged with “Hacktoberfest”. We think these are achievable, we know they are useful, and our maintainers can work with you on them.

Is there something new that you’d like to contribute? Open an issue and discuss it with the maintainers. Make use of the pull request template available in the Community Hub.

Is there an open feature request that you would like to see implemented, or an open bug that is affecting you? This is your chance to make the world a better place for yourself and others.

To learn more about the GitHub workflow and what happens after you submit your pull request (PR), check out this page.

Did you hit a bug? As well as opening an issue for it, or could contribute the fix. Again, our maintainers are here to help you pinpoint the issue and discuss approaches to fixing it.


The rules are simple: submit four quality pull requests to any Camunda repo on GitHub (including participating* CCH repos) and earn a t-shirt! (fine print below)

To qualify for the official limited edition 2021 t-shirt:

  1. You must make four (4) pull requests (PRs) between October 1-31 (in any time zone). 
    1. Qualifying PRs can be made in any Camunda repository including the Camunda Community Hub.

*Not all community maintainers are participating in Hacktoberfest. Check the repos for “hacktoberfest” labels to see who is participating.

  1. PRs must be ready to review (not drafts). 
  2. PRs may be marked invalid by a maintainer if the PR:
    1. Is determined to be spam
    2. Does not follow the contribution guidelines
    3. Is not in line with the project’s code of conduct
  3. Invalid PRs do not count towards your PR total.
  4. Once you have submitted four PRs, fill out the form below letting us know you have completed the challenge.
    1. The information gathered in the form will be stored for the purposes of sending you your prize as well as following up with you after the event. 
    2. Our Privacy Policy can be found here.
    3. Our Code of Conduct can be found here.

Please Note: 

  • It is up to the discretion of Camunda to accept or not accept any community contributed pull requests. There is no guarantee that your submission will be merged or used in any future updates or releases. 
  • Prizes will start shipping in December 2021.