openstream/open-social-media-monitoring ? reverse-engineered prompt

Build me a simple open source social media monitoring app that I can upload to a PHP server and set up through a browser.

I want to add a project, enter a few keywords, and then have the app keep checking for new mentions from available sources on a schedule. After the first cron run, it should start showing results in the interface, and I should be able to run the cron manually too if needed.

Please make the setup flow easy for someone non technical, with a web based install step, basic configuration, and a clean place to view the collected items. It should work whether the app is installed in the site root or in a subfolder. If you need to check current PHP best practices or docs, look them up online.

Keep it lightweight and practical, focused on getting the monitoring working end to end.