getProcessEnvVars = (collectionUid) => {
  // if there are no .env vars for this collection, return the process.env
  if (!dotEnvVars[collectionUid]) {
    return {
      ...process.env
    };
  }

  // if there are .env vars for this collection, return the process.env merged with the .env vars
  return {
    ...process.env,
    ...dotEnvVars[collectionUid]
  };
}
This file stores all the process.env variables under collection scope

process.env variables are sourced from 2 places:
1. .env file in the root of the project
2. process.env variables set in the OS

Multiple collections can be opened in the same electron app.
Each collection's .env file can have different values for the same process.env variable.