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Do you have an idea of what to work on? That's awesome! We encourage you to post your ideas on the Open edX discussion forums to get feedback on your idea and get connected to others that can help you out. Please clearly state your idea, and what you plan to do, link to any relevant code/screenshots, and ask specifically for what type of feedback or help you are looking for.
Dev Env!
Get Started with the edX devstack explains how to stand up Devstack. Post Tutor is the official Docker-based Open edX distribution, both for production and local development. There's a Tutor Topic to get help specifically on Tutor or you can post in the Development category on the Open edX forum if you have questions about set-up or development. Note: we are currently (spring 2022) in an effort to replace Devstack with Tutor. We encourage you to try out Tutor and see how it goes for you. There's a Tutor Topic to get help specifically on Tutor (no more questions will be answered in the old Tutor forum, but it’s a good source to find old answers ).
Getting Support
Join the #dev Open edX Slack channel to ask questions and get support. There may be also more channels to get technical support, for example, #ops is better suited if you are running your own instance and have questions. Also, consider using the Open edX forums - please search for your answer first. 
Why? The Slack history is deleted after 6 months but the forums never delete history, so your questions there will be displayed to people searching for similar questions in the future.
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