Schedule

Thank you all for your amazing activities! Make sure to check out the recordings if available. We look forward to seeing you again next year!

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May 1
GitHub

Open Source Friday - Welcome to Maintainer Month 2026

3:00 pm - 4:00 pm UTC

8:00 am - 9:00 am PT

Stream
English
Virtual

Kicking off Maintainer Month 2026 with a special Open Source Friday livestream on the GitHub YouTube channel.

May 1
GitHub

Open Source Friday: Remotion

6:00 pm - 7:00 pm UTC

11:00 am - 12:00 pm PT

Stream
English
Virtual

Johnny Burger on Remotion, an open source framework for creating videos programmatically using React.

May 7
Stream
English
Virtual

Live coding with maintainers as part of Maintainer Month 2026.

May 7
Stream
English
Virtual

Open source software remains essential to enterprise technology strategies, but the forces shaping how organizations adopt and manage OSS are evolving. The 2...

May 8
mnriem

Open Source Friday: Spec Kit

5:00 pm - 6:00 pm UTC

10:00 am - 11:00 am PT

Stream
English
Virtual

Manfred Riem (@mnriem) on Spec Kit, an open source toolkit for building software with AI via specifications.

May 9
FOSS United Foundation

Maintainers Meetup Delhi

10:30 am - 1:30 pm UTC

3:30 am - 6:30 am PT

Meetup
English
Delhi, India

As part of MaintainersMay, FOSS United Foundation is organising Maintainer Meetups all over India. An unconference-style event for FOSS maintainers.

May 12
Stefano Cordio

What's wrong with AssertJ?!

6:15 pm - 7:30 pm UTC

11:15 am - 12:30 pm PT

Talk
English
Zurich, Switzerland

AssertJ maintainer Stefano Cordio explores the technical debt and API inconsistencies accumulated over the 3.x era and how AssertJ 4 is being built to meet the testing challenges of the next decade.

May 13 to May 19
Conference
English
Long Beach, CA, USA

It's time to celebrate Python and the Pythonistas that help build our OSS ecosystem ❤️ Come check out our booth to learn about all of the exciting OSS projec...

May 14
Meetup
English
Virtual

An open discussion on how corporations can support OSS maintainers, including which programs work today, how they can improve, and what is missing.

May 14
Stream
English
Virtual

Live coding with maintainers as part of Maintainer Month 2026.

May 16 to May 17
Inessa Pawson, Leah Wasser, Mariatta Wijaya

Maintainers Summit at PyCon US

May 16, 6:30 pm - May 17, 12:30 am UTC

11:30 am - 5:30 pm PT

Misc
English
Long Beach, USA

The Maintainers Summit at PyCon US is where the Python community comes together to discuss and foster best practices on how to develop sustainable projects a...

May 18 to May 19
05F5

Open Source Founders Summit

May 18, 7:00 am - May 19, 3:00 pm UTC

May 18, 12:00 am - May 19, 8:00 am PT

Conference
English
Paris, France

Open Source Founders Summit is a business conference, not a tech conference. Open source companies face challenges and opportunities that proprietary softwar...

May 18 to May 20
Conference
English
Minneapolis, MN, USA

Visit the GitHub activation inside the Microsoft booth to chat about maintainer tools, open source programs, and what we're building for maintainers.

May 21 to May 22
GitHub

Open Source Assistive Technology Hackathon

May 21, 9:00 am - May 22, 7:00 am UTC

May 21, 2:00 am - May 22, 12:00 am PT

Misc
English
San Francisco, CA

A two-day hackathon focused on helping participants build skills and make contributions to open source assistive technology projects.

May 21
Stream
English
Virtual

Live coding with maintainers as part of Maintainer Month 2026.

May 22
Stream
English
Virtual

Anne Dickison (FreeBSD Foundation), Katie Steen-James (OSI), and Margaret Tucker (GitHub) on age-assurance laws and open source.

May 22
prachi1615

Open Source Friday: OpenMind (OM1)

5:00 pm - 6:00 pm UTC

10:00 am - 11:00 am PT

Stream
English
Virtual

Prachi Sethi on OM1, an open source, hardware-agnostic cognition stack for robots.

May 23
FOSS United Foundation

Maintainers Meetup Bengaluru

8:30 am - 11:30 am UTC

1:30 am - 4:30 am PT

Meetup
English
Bengaluru, India

As part of MaintainersMay, FOSS United Foundation is organising Maintainer Meetups all over India! Maintainers Meetup Bengaluru is a dedicated event for FOSS...

May 26
Datadog

Open Source Engineering at Datadog

6:00 pm - 8:30 pm UTC

11:00 am - 1:30 pm PT

Meetup
English
New York, USA

​Join Datadog's Community Open Source Engineering (COSE) team at our NYC office for a GitHub Maintainer Month evening on two major open source observability proje...

May 27
Stream
English
Virtual

Join Jeff Luszcz from the GitHub Open Source Programs Office as he reviews what every maintainer should know about open source licensing, SBOMs, and their impacts on supply chain security; and what users are expecting in 2026.

May 28
GitHub

Introducing Project Pods on For Good First Issue

10:00 pm - 10:30 pm UTC

3:00 pm - 3:30 pm PT

Talk
English
Virtual

Open source nonprofits often struggle to get end to end projects across the finish line. Complex work that requires coordination like building a new feature,...

May 28
Stream
English
Virtual

Live coding with maintainers as part of Maintainer Month 2026.

May 29
GitHub

Open Source Friday: dlt

5:00 pm - 6:00 pm UTC

10:00 am - 11:00 am PT

Stream
English
Virtual

Vis Kahoro on dlt, a Python SDK for production-grade data pipelines built by developers and agents.

May 29
Talk
English
Virtual

Lessons from setting up an OSPO at Université Grenoble Alpes: origins, activities, and challenges of supporting open source research software.

May 30
Cumbuca Dev

Nosso Open Source Summit

12:30 pm - 9:30 pm UTC

5:30 am - 2:30 pm PT

Conference
Portuguese
Virtual

🧾 Sobre O NOSS nasce de um incômodo, que acompanha um sonho. Vivemos em um mundo sustentado por tecnologias abertas. Ainda assim, as pessoas que mantêm esse...

May 31
Talk
English
Virtual

A practical, opinionated 30-minute talk for students and early-career developers who want their first (or next) open source PR to actually land. With concrete examples from pollinations.ai, learn what 30 seconds of contributor effort can save a maintainer 30 minutes of work.