I don’t know what’s worse: The whole anti same-sex marriage deal or inventing Javascript.

Probably Javascript…

Heh. Made me smile.

Here, have an upvote! ;)

Maybe FreefileSync is what you need?

https://freefilesync.org/

No at my box atm, but I think you’d have to get the flatpak: https://flathub.org/apps/org.freefilesync.FreeFileSync