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Migration guides

Migrate from WarpBuild to runnerhut

The exact change to move your workflows from WarpBuild — and the change to move back, so you can evaluate without committing.

What WarpBuild does well

The broadest runner matrix in the category — Linux, macOS, Windows, arm64, snapshots
Mature bring-your-own-cloud story with per-provider documentation
By far the strongest content and SEO footprint: ~750 indexed pages
Remote Docker builders and snapshot runners are genuinely differentiated

Where we differ

Breadth comes with configuration surface — more knobs to get wrong
Snapshot runners add a storage line item that is easy to under-forecast
BYOC shifts cloud cost and IAM risk back onto your team

	WarpBuild	runnerhut
EU data residency	Yes, enterprise tier	Yes, all plans
Drop-in runs-on	Yes	Yes
Runner families	Linux, macOS, Windows	Linux, macOS, Windows, GPU
Bring your own cloud	AWS, GCP, Azure	AWS, GCP, Azure
Snapshot runners	Yes	Yes
Included cache	Metered	Unlimited
Setup surface	Large	One line
Per-job cost analytics	Yes	Yes

Compiled from each vendor's public documentation, August 2026.

The migration

yaml

jobs:
  build:
-   runs-on: warp-ubuntu-latest-x64-4x
+   runs-on: runnerhut-8vcpu-ubuntu-2404
    steps:
      - uses: actions/checkout@v4

One line. Every other line of your workflow is untouched.

And the migration back

We publish this because after BuildJet's shutdown, "what if you disappear" is a fair question. Leaving is the same single line you changed to arrive.

yaml

jobs:
  build:
-   runs-on: runnerhut-8vcpu-ubuntu-2404
+   runs-on: ubuntu-latest

Checklist

Install the runnerhut GitHub App on the repositories you want to move
Change runs-on in one job first and compare timings against the old runner
Add runner.arch to cache keys if you are also moving to arm64
Roll out to the rest of the repository once the comparison looks right
Set a budget cap and concurrency cancellation before going organisation-wide

Your next build could be twice as fast, at half the price

Start free. Migrating away is the same one line, and we publish that diff too.

Start building See pricing

Related

GitHub-hosted runnersThe default runners built into GitHub Actions. Zero setup, billed per minute against your GitHub plan, with larger runners and native arm64 available on paid tiers.BlacksmithA YC-backed managed runner platform positioned as a drop-in GitHub Actions replacement, advertising up to 2× faster CI with faster caching and lower cost. Raised a Series B led by Peak XV and is SOC 2 Type 2 compliant.NamespaceEphemeral compute for CI and development: drop-in GitHub runners alongside devboxes, sandboxes and ephemeral Kubernetes clusters, with Bazel remote execution and egress filtering.UbicloudAn open-source cloud that runs managed GitHub Actions runners alongside managed Postgres and Kubernetes, competing primarily on price-performance and on being open and portable.