Blacksmith makes its M4-powered Mac runners generally available

Hot take: Mac CI is expensive, slow, and annoying enough that a credible hosted alternative can win on pain reduction alone.

• –This is not just a feature add; it closes a major gap for teams that need macOS builds but want to escape GitHub’s slower hosted runners.
• –The performance story is believable because Blacksmith is leaning on M4 hardware plus local SSD access, which should matter for Xcode and simulator-heavy workloads.
• –The announcement fits Blacksmith’s broader positioning as a drop-in GitHub Actions replacement with lower cost and better observability, not a standalone Mac runner vendor.
• –The launch signal is strongest for teams already dealing with CI bottlenecks on iOS/macOS pipelines, where small gains compound fast.