

It’s not just helicopters. Commercial satellite imaging is good enough to detect mold and askew shingles (usually more through running the image over multiple angles and finding reflectance differences)
I worked for a company that does large scale construction updates based on SAR and Maxtor reflectance data, it’s pretty terrifying how accurate it is.
I have also been done in many times by git-filter-repo. My condolences to the chef.