This pr is meant to replace https://github.com/nrwl/nx/pull/22585 and https://github.com/nrwl/nx/pull/20524 Env variables using other variables were not unloaded from the environment and further customizations were impossible in more specific env files. <!-- Please make sure you have read the submission guidelines before posting an PR --> <!-- https://github.com/nrwl/nx/blob/master/CONTRIBUTING.md#-submitting-a-pr --> <!-- Please make sure that your commit message follows our format --> <!-- Example: `fix(nx): must begin with lowercase` --> ## Current Behavior <!-- This is the behavior we have today --> ## Expected Behavior <!-- This is the behavior we should expect with the changes in this PR --> ## Related Issue(s) <!-- Please link the issue being fixed so it gets closed when this is merged. --> Fixes https://github.com/nrwl/nx/issues/23581 Co-authored-by: Mateo Tibaquira <nestormateo@gmail.com>