Comment by dwhitney

oof - this article is pushing bad advice - general disclaimer: use a third party authentication system like Okta or Cognito. It's going to save you so much grief down the road. They pretty much all use the same pattern (OIDC), so you just need to learn it once, and you're good for at least another decade. Authentication is one of the easiest and most important things to take off of your plate. Do it.