Rspack

[wendevlin]

Breaking change

Proposed change

• change from webpack to rspack

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue or discussion:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

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[MindFreeze]

I am getting these times for build_frontend:

Finished 'webpack-prod-app' after 3.35 min
Finished 'rspack-prod-app' after 1.3 min

And these for develop:

webpack Compiled successfully in 8.22s
rspack Compiled successfully in 5.60s

Live recompile is slower with rspack. 2-2.5s vs 0.6-0.7s for webpack. There seems to be some delay before rspack starts, so maybe this could be fixed if we find where the delay comes from.