dpkg-deb --build
Makes it super simple to create one. You just lay out a folder with the contents you want to be installed. Just make sure it has a DEBIAN/control sub folder/file because that control file is where you can specify dependencies, package version, name, etc.
I literally have clothes hanging on a line across the living room because our just out of warranty $1,000+ Samsung “smart dryer” died again a month after I replaced every sensor and the heating element, and I just don’t feel like taking it apart again to “maybe” find the problem.
Before this we just had a plain white box from Maytag; easy to work on, cheap replacement parts. It was probably 30 years old when the motor seized and my wife asked for newer, fancier machines. Big mistake.
I use AdGuard Home on a home server to block all social media for my kids for this very reason.
That’ll still end up cheaper than room and board, clothing, medical care, food, lawyers, etc. for the next several decades.