If there was a time when web folks agreed on a tool set I missed it. It's not really about agreeing on everything, though, is it? What matters is having enough

If there was a time when web folks agreed on a tool set I missed it. It's not really about agreeing on everything, though, is it? What matters is having enough standardisation and longevity that you can make intelligent decisions today and expect your code to work for a useful length of time and to play nicely with code written by others who also make intelligent decisions today. You can run a CGI process written in whatever programming language you want under any of the popular web servers today, and it will work essentially the same way as it did 20 years ago. Until browser developers decided that backwards compatibility was too much trouble to continue supporting, which is a relatively recent development, you could also run Flash or Java applets written many years ago with essentially the same results today.