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Use case

Json configuration file path can be specified to the flutter command using the --dart-define-from-file option.

Json format is good but most of the framework mostly use also .env files

Why do not use .env files like many frameworks do ?

Proposal

I suggest to make possible to specify .env files to the --dart-define-from-filein addition to the Json format.

Usage

flutter run --dart-define-from-file=.env