Multiple package version dependencies

component.js

import DayPicker as foo from 'react-day-picker@5.2.0'
import DayPicker as bar from 'react-day-picker@5.2.1'
import DayPicker as baz from 'react-day-picker@5.2.2'

legacy.sh

#!/bin/bash

# dependency package version
dependency() {
    yarn add $1@$2
    mv node_modules/$1 legacy_modules/$1@$2
    # Makes the whole process slower, but doesn't fill up package.json with cruft
    yarn remove $1
}

mkdir legacy_modules

# List dependencies and versions below:
# TODO: hoist this config into package.json; package as modules
dependency react-day-picker 5.2.2
dependency react-day-picker 5.2.1
dependency react-day-picker 5.2.0

webpack.config.js

resolve: {
  modules: [path.resolve('./legacy_modules'), 'node_modules']
}