publish

To build Flutter release archives for multiple platforms, you need to validate the project's pubspec.yaml, execute sequential fvm flutter builds, and collect the resulting artifacts into build/publish with a clean start each run.

Yes, you can build Flutter web, macos, windows, and linux release artifacts concurrently. The process enforces platform validation and collects the output archives from each target into the build/publish directory.

Yes, fvm flutter is required to build release archives for android and ios. The process uses fvm flutter for building platform-specific artifacts and provides clear error reporting if any platform build fails.

The best way to automate collecting platform-specific Flutter artifacts in a CI pipeline is to run a process that validates pubspec.yaml, sequentially builds target platforms using fvm flutter, and outputs the resulting archives into build/publish.

Checking for pubspec.yaml before producing release archives validates that the directory is a legitimate Flutter project. This safeguard prevents errors by ensuring platform-specific builds only execute in valid project environments.

Limitations when building Flutter release archives across platforms include sequential build execution to prevent conflicts, strict input validation, and build failures for unsupported platforms that halt the collection of artifacts into build/publish.