You sure?
I tried reaching out to him a number of times, and my emails simply got ignored. Many people tried as well.
Deep Host extensions don't even follow the naming conventions (they rarely do), when advised numerous times. Why?
To download his extensions, you need to download an app. That is only available for Android phones. He never posts his extensions in communities (only 2 or 3 threads that I can think of, not in this community).
He isn't even a member of App Inventor Community. The last time he posted something in any community was 4 years ago, in Kodular Community. Yes, his extension should not 100% malfunction - that's a disaster. But be careful when anyone uses his work.