I am looking for a super simple script that will display the YouTube channels you're currently subscribed to. When one of those channels uploads a new video - it will show an alert AND make a sound. If the API doesn't allow monitoring channels in real time, maybe we can set up a cron job or something to check back every 60 seconds. If a new video is detected, it will trigger the alert. Basically, I want to be in another room and if a new video is posted to a channel I subscribe to - I want to be able to hear it and run back into my office to watch it. This script will be placed on a website by itself, it will need to be able to handle different users - each with their own subscriber list. I would also like an admin panel that can manage the users access to the website. Possible? Let's chat!
ill be perfectly honest with you, I programmed a couple of YouTube Downloaders a couple of years ago and both of them took up so much of my time, having to keep changing code to get it working (regex). YouTube constantly change code to try to stop downloaders working and I think this also may affect what you are wanting to do too. You may find that you are having to pay the developer every fortnight to keep updating the program, it gets a bit of a nightmare the more users you have - at one point I was getting 3000+ emails every time the code changed
I would assume those changes are solely related to the download part of the API. For youtube to dramatically change the entire API every day is highly unlikely. The information the OP needs from the API is not something you can abuse, hence, no need to constantly change it to "break" software.