The non-serverless version still works fine, even in modern JS land. The simple approach still works if you have some knowledge around setting up a server and configuring a few things.
I also think that the advice around Authentication is often misguided. For simple cases it's not that hard to add authentication without a separate service. There is too much scaring the newbies around that topic, when they are probably about as likely to mess up authentication when they try to configure an excessively complex library compared to implementing basic session authentication with the tools their framework provides.
I also think that the advice around Authentication is often misguided. For simple cases it's not that hard to add authentication without a separate service. There is too much scaring the newbies around that topic, when they are probably about as likely to mess up authentication when they try to configure an excessively complex library compared to implementing basic session authentication with the tools their framework provides.