... because I don't understand how it's used. And node 20.6 has the
option --env-file which might be a replacement.

pveyes/raw.macro#66

To remove this error message I added the suggested dependency.
It would probably better to get rid of the unmaintained create-react-app
but it's not a dependency. The build error was:

    One of your dependencies, babel-preset-react-app, is importing the
    "@babel/plugin-proposal-private-property-in-object" package without
    declaring it in its dependencies. This is currently working because
    "@babel/plugin-proposal-private-property-in-object" is already in your
    node_modules folder for unrelated reasons, but it may break at any time.

    babel-preset-react-app is part of the create-react-app project, which
    is not maintianed anymore. It is thus unlikely that this bug will
    ever be fixed. Add "@babel/plugin-proposal-private-property-in-object" to
    your devDependencies to work around this error. This will make this
    message
    go away.

See facebook/create-react-app#11770

Compressed and optimized SVGs using https://github.com/svg/svgo

... for now because newer versions have breaking changes

…-app before v5