Distrobox
Distrobox is amazing. It's like Linux Subsystem for Linux in the best possible way. (That's a play on the name Windows Subsystem for Linux). With one command, anyone can spin up the shell environment of another Linux distribution, and the host files will be right there. Are you using Debian because you value desktop stability, but you want to use the latest Neovim? No problem. Use Distrobox to create an Arch or Fedora environment, install Neovim, and use it. That's it!
I'm surprised, disappointed, and a bit embarrassed I didn't know about it until now.