I, the experienced web dev, would do this in PHP. My reasoning is:
It sounds like the big frameworks are completely overkill for this use case. PHP makes it super easy to make applications like these without a framework.
PHP runs as a daemon/is integrated into the web server, so there's no application server you have to manage yourself. Single .php file, drop in www directory, it's ready to go.
emma wrote
Reply to comment by oolong in Do you miss the office? (it's an office noise generator) by oolong
I couldn't stand sharing an office with 3 other people if I heard every bit of noise they made, so it works out.