Windows 11 Background Productivity Service

I Want to build a lightweight background service for Windows 11 that quietly blocks any websites or desktop applications I specify—typically the distracting ones such as social-media, streaming, or gaming platforms—while leaving everything else untouched... (Budget: ₹12500 - ₹37500 INR, Jobs: Backend Development, Database Management, Frontend Development, RESTful API, Software Development, System Administration, Web Application, Windows Service)