services are specialized web applications, often called "premium link generators" or "multi-hosters," that allow you to download files from Fboom (FileBoom) with premium-tier benefits without needing a direct subscription to the host.
Debrid services maintain their own premium accounts with various file hosters. When you paste an Fboom link into a debrid tool, the service uses its own premium access to fetch the file and then "mirrors" it to you via a high-speed, direct HTTPS link. fboom debrid
You copy the original Fboom URL and paste it into the debrid provider's "unrestrictor" or "leecher" tool. services are specialized web applications