Background Build keeps the Unity Editor responsive by running builds in the background without blocking the Editor. It integrates with Unity's standard Build button and also provides a scriptable API for custom build pipelines.

Highlights:
Keep working in the main Editor while a build runs

• Use Unity's standard Build workflow, with an easy enable/disable setting
• Works with any platform
• Stream build output to the Console when desired
• Open the completed build output or full log from the completion message
• Build players and AssetBundles in the background
• Build Addressables content when the Addressables package is installed
• Use synchronous-style entry points or awaitable request APIs
• Includes importable API examples

Limitations

• Only one background build can run at a time
• Builds use the currently active platform
• The first workspace build can be slower while Unity creates its cache
• Project changes made during an active build may or may not be included in that build
• Intended for interactive Editor workflows, not CI/CD