Run once. Reuse anywhere ✦ Once makes repository automation reusable across developers, coding agents, and machines by giving actions explicit inputs & outputs

Compute
Joined July 2026
Once retweeted
your test suite has one job, and it's making ci wait. @buildoncedev now ships portable test plans, and tuist spreads its batches across ci workers. fresh machines run them with no warm-up ritual, and you get one report per shard on the same dashboard as xcode, gradle and cargo github.com/tuist/tuist/pull/…
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good thing of building a build system is that we can build convenient auth against infra providers 🫣
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Replying to @buildoncedev
@buildoncedev’s initial support for building Xcode projects and workspaces (bringing caching capabilities) just landed and I’m looking for people interested in giving it a shot in their projects. buildonce.dev/docs/guide/gra…
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We got Signal, Wikipedia, and Firefox Xcode workspaces building with a remote caching more effective than Xcode’s and without having to rewrite the build graph into another language 😎
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You can now cap the memory of actions to ensure the build system uses memory mindfully of the host resources: buildonce.dev/docs/guide/loc…
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We've got a new landing page with blog and changelog sections for you to stay up to date with all the work we are doing to build the most optimized and observable automation substrate.
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Our docs are about to get better
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We are looking for people and organizations interested in optimizing their agent automation, from compilation to test runs. Just shoot us a DM
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We've heard an official prelude to add @reactnative support is coming :)
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Hello world 🌎
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