Install bluepill with Homebrew, winget

Project links

• Homepage
• Upstream docs
• Package manager page

Commands and aliases

• bluepill
• bp

Project history

LinkedIn open-sourced Bluepill in January 2017 after building it to run its large iOS test suite in a reasonable amount of time. The README describes its core features: parallel simulator execution, automatic test grouping, headless mode, junit reports, retry behavior, and simulator crash or hang recovery.

The project was originally published under LinkedIn's GitHub organization and later lives under MobileNativeFoundation. Its tags show a long 5.x release line, and the README tracks supported Xcode versions with branches for older Xcode releases.

Adoption history

Bluepill found adoption among iOS teams that needed faster CI feedback without rewriting tests. The README explicitly documents Homebrew installation, release binaries, Fastlane plugin integrations, and a Bitrise build/test step, showing that usage spread through common mobile CI packaging channels.

The surrounding ecosystem included Redpill and other Fastlane plugins, plus Bitrise support, which let teams wire Bluepill into existing build pipelines rather than treating it as a standalone experiment.

How it is used

A typical workflow builds an app and test bundle with xcodebuild build-for-testing, then invokes bluepill with the generated .xctestrun file and an output directory. The tool can also read a JSON configuration file via -c/--config, but the README documents this as a user-supplied file rather than a fixed config path.

Operationally, Bluepill matters because it packs tests into simulator groups, controls retry behavior, collects junit output, and can run headless to reduce resource use on CI machines.

Why package nerds care

Bluepill is significant because it packages a hard local-platform problem: reproducible iOS simulator parallelism. For package nerds, it is a case study in a CLI wrapping Xcode artifacts, Simulator behavior, junit reporting, and CI integration into something installable with Homebrew.

It also marks a particular era of iOS infrastructure, when teams combined xctool, FBSimulatorControl ideas, Fastlane plugins, and custom runners to make Apple-platform testing scale in CI.

Timeline

• 2017: LinkedIn open-sourced Bluepill and published early v0.x tags.
• 2017: README credits inspiration from parallel_ios_tests, Facebook xctool, and FBSimulatorControl.
• 2017-2018: Fastlane and Bitrise integrations appeared around the project ecosystem.
• 2024: Official repository metadata and tags show continued releases through the 5.x line, including Xcode 15.1-era work.

Related projects

• parallel_ios_tests inspired the project.
• Facebook xctool and FBSimulatorControl are credited by the README as inspirations.
• Fastlane plugins such as Redpill, fastlane-plugin-bluepill, Bluepillar, and XBluepill integrated Bluepill into mobile release workflows.
• Bitrise's Bluepill Build/Test for iOS step connected it to hosted CI.

Sources

• https://engineering.linkedin.com/blog/2017/01/open-sourcing-bluepill--run-ios-tests-in-multiple-simulators
• https://github.com/MobileNativeFoundation/bluepill#readme
• https://github.com/MobileNativeFoundation/bluepill/releases
• source_facts.package-manager