Tested SingleFile today. Very cool. Thanks for sharing!

I use httrack for this type of thing.

HTTrack Website Copier - Offline Browser https://www.httrack.com/html/fcguide.html

After flying to the customer’s destination, the Zip will hover about 300 feet in the air before lowering to the ground. Zips automatically avoid obstacles and gently place the delivery at the guest’s address.

This doesn’t sound like it would work in areas with above ground power lines.