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Description
Is your feature request related to a problem? Please describe.
about #3851
Describe the solution you'd like
The usage of environment variables, such as process.env.VITE_EXTRA_EXTENSIONS, warrants a more detailed description in the official documentation.
If I haven't seen the source code, I wouldn't know that VITE_EXTRA_EXTENSIONS is a string that concatenates different words with commas.
Describe alternatives you've considered
No response
Additional context
No response
Validations
- Follow our Code of Conduct
- Read the docs.
- Read the Contributing Guidelines.
- Check that there isn't already an issue that asks for the same feature to avoid creating a duplicate.