Meta Open Source
metaopensource
Empowering diverse community through open source technology.
The 2026 Python Type System & Tooling Survey is live 📝
No typing experience needed, your perspective as a Python dev matters most. Take a couple minutes to help improve Python typing for all!
This survey was developed with support from the Pyrefly team at Meta, the PyCharm team at JetBrains, the Python team at Microsoft, and the typing community on discourse.python.org
3
3
🚀 Introducing Astryx from Meta – an open source design system that’s AI fluent and fully customizable without dependencies. 150+ accessible components, brand-level theming, ship-ready templates, and a CLI. Built at Meta over 8 years, now yours. Astryx Design → astryx.atmeta.com and GitHub → github.com/faceb…
9
Python is the most used programming language at Meta.
This year marks our 10th consecutive year as a sponsor of the Python Software Foundation, the organization dedicated to advancing and protecting the language and its community.
In this post, we reflect on why we invest in the PSF, and why we believe organizations that depend on Python share a responsibility to support it.
Read more: engineering.fb.com/2026…
Python #OSS
10
3
3
3
We’re thrilled to share that Pyrefly, our open source type checker and language server for Python, has officially reached v1.0!
This has been a huge team effort. Since our beta release last November, we've shipped over 60 updates, fixed hundreds of bugs, and added features the community has been asking for.
Video: youtube.com/watch…
Blog: pyrefly.org/blog…
We also want say a huge thank-you to the open-source community for helping us get here. 🙏
25
3
1
Log in to see more from metaopensource.
Log in or sign up for ThreadsSee what people are talking about and join the conversation.Log in with username instead