Developing Thaw

Contribution requirements, review expectations, and security reporting are in the shared Thaw/Floe policies.

RequirementsCopy Anchor Link

• macOS 26 or 27.
• Xcode 26.3 or later. CI tests with Xcode 26.6 and 27.0.

Thaw 2.x ships for macOS 26; 3.0 ships for macOS 27.

BuildCopy Anchor Link

open Thaw.xcodeproj

Code styleCopy Anchor Link

Configuration lives in .swiftlint.yml and .swiftformat.

swiftformat .
swiftlint lint --strict

TestsCopy Anchor Link

Use Swift Testing (@Test and #expect), not XCTest. Tests live in ThawTests and package test targets.

xcodebuild test -project Thaw.xcodeproj -scheme Thaw -destination 'platform=macOS' \
  CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO CODE_SIGNING_ALLOWED=NO

Project documentationCopy Anchor Link

• Architecture.
• Assurance case.
• Release verification.
• URI schemes.
• Frequent issues.