1
The GitHub Actions control plane is no longer free
GitHub is adding a $0.002-per-minute fee on all GitHub Actions usage, so the control plane is no longer free.
Blacksmith Blog
Speed up your GitHub actions with Blacksmith. Run CI/CD 2x faster, download caches 4x faster, build Docker images 40x faster, and eliminate queue times. Start free today.
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2
Cache is King: A guide for Docker layer caching in GitHub Actions
Enable Docker layer caching with cache-from and cache-to using GitHub's cache or registry cache for faster CI builds.
3
How the economics of multitenancy work
CI is chaotic, bursty, spiky, and short-lived. That chaos is a nightmare unless you’re built for it. Blacksmith’s serverless CI cloud thrives on unpredictability: more customers = more noise = smoother utilization = lower costs for everyone. Multitenancy isn’t just efficient — it’s profitable. And yes, the margins are…
4
Reverse engineering GitHub Actions cache to make it fast
We reverse engineered GitHub Actions cache internals to transparently route cache requests through our faster, colocated cache. This delivered up to 10x faster cache performance for some of our customers, with no code changes required and no need to maintain forks of upstream actions.