blog is a service for highly scalable, pay-per-use, distributed Nix builds. This blog publishes announcements, progress reports and technical articles about the service.

Automatic Resource Optimization

Posted on June 25, 2020 by Rickard Nilsson

As of today, will automatically select resources (CPU count and memory amount) for builds submitted to it. Based on historic build data, calculates a resource allocation that will make your build as performant as possible, while wasting minimal CPU time. This means users get faster and cheaper builds, while also taking away the user’s burden of figuring out what resource settings to use for each individual build.

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Binary Cache Support

Posted on April 18, 2020 by Rickard Nilsson

Up until now, has not supported directly fetching build dependencies from binary caches like or Cachix. All build dependencies have instead been uploaded from the user’s local machine to the first time they’ve been needed.

Today, this bottleneck has been removed, since now can fetch build dependencies directly from binary caches, without taxing users’ upload bandwidth.

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New Resources

Posted on March 27, 2020 by Rickard Nilsson

On the support side of the service, two new resources have been published:

  •, collecting all available documentation for users.

  • The feedback repository on GitHub, providing a way to report issues or ask questions related to the service.

These resources are mainly useful for beta users, but they are open to anyone. And anyone is of course welcome to request a free beta account for evaluating, by just sending me an email.

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Posted on February 18, 2020 by Rickard Nilsson

Exactly one month ago, I announced the service. Since then, there have been lots of work on functionality, performance and stability of the service. As of today, is exiting alpha and entering private beta phase. If you want to try it out, just send me an email.

Today, I’m also launching the blog, which is intended as an outlet for anything related to the service. Announcements, demos, technical articles and various tips and tricks. We’ll start out with a proper introduction of; why it was built, what it can help you with and what the long-term goals are.

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