Using php + sql and maybe a little javascript is generally an OK-ish method that has few strings attached and runs on anything. However there are a lot of modern frameworks that let you do a lot more stuff. There things like django, firebase, blazor, asp net or whatever but what FOSS equivalent to this “next gen” web development stuff should we be using?
Django is huge in the python world. Python’s answer to ruby on rails. It’s also been around for a while now so it should be pretty mature (I’ve never used it BTW).