Use Tdarr! Grab the Server and then use your main PC and other PCs you have around as nodes. It's fully automated once you set it up. Just point it to the libraries and it scans and converts. Completes a Arrs/Plex/Jellyfin setup
Create a Nonprofit LLC. Then register your Microsoft account with that Non-Profit. Then you can use Entra ID/Intune App Deployment for free with the Free Business license (up to 200 users)