Great breakdown! This guide makes Firebase authentication feel really approachable, especially for devs who are just starting out with React. The mix of code samples and explanations is super helpful.

I’ve noticed that teams focused on highly customized apps, like those built by firms such as OpenForge, sometimes prefer more tailored auth flows, especially when dealing with advanced user roles or regulatory constraints. Firebase covers a lot, but I wonder how well it scales when those edge cases come up.

Do you think Firebase is flexible enough for apps with more granular access control or should devs plan ahead for something more custom?