Open Source

Interactive demo for sighted users: a network graph with Namespace at the center and a line out to each open source project it sponsors, the projects on a slowly turning ring. A pointer hovers one project after another, and each opens a preview of that project's GitHub repository with its description, homepage, and watcher, fork, and star counts. Hover or tap a project to open its preview. The graph sits on a subtle off-white texture.

Nix Community

We sponsor your CI.

Every feature in Namespace for GitHub Actions: compute, caching, observability, and more.

FASTER GITHUB ACTIONS

Highest single-core performance across Mac, Windows, and Linux

DIRECT SUPPORT

Shared Slack channel with our engineers to support you faster and help you optimize.

Why we run this.

I got into software through open source. As a teenager I built a KDE GUI so I’d stop typing configure, make, make install by hand. In my twenties I maintained IPv6 routing tools.

At Google I saw how much great infrastructure changes the way developers work. Outside a handful of companies, it still doesn’t exist, and maintainers are rarely inside that handful. Slow CI means batched changes, skipped runs, and contributors stuck waiting in a queue.

Much of the code we ship at Namespace lands in Foundation, the OSS platform underlying our services. Everything we run stands on open source: Kubernetes, Postgres, ClickHouse, Bazel, BuildKit.

This program is how we pay it forward. We sponsor the compute, caching, and observability so your pipeline keeps up with your contributors.

If you’re building something open source, we’d love to hear from you.

Hugo Santos

Founder and CEO, Namespace

Straight from the (open) source.

How DuckDB runs their CI/CD pipelines 10x faster with Namespace

10x

faster builds

<30 min

PR validation

Testimonial

“Namespace has been integral to getting Omarchy ARM solid by offering native compilation on Apple Silicon. Big boost to the project!”

David Heinemeier Hansson

Creator, Omarchy

Customer story

“Even though Namespace saved us money, that wasn’t the point. What matters is that it’s reliable and fast. In the end, it’s more about the cost of time than the cost of money.”

Sander van Veen

Developer Experience Engineer, DuckDB

Read the story

Testimonial

“Been using Namespace for the past year or two, they’ve been absolutely awesome. The service is great, support is great. Just overall great job.”

Mitchell Hashimoto

Creator, Ghostty

Thank you for building in the open.

Tell us about your project and what you want to fix in CI.

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