I made a small plugin that other people might find handy. It checks if the file open in the current buffer has write access and if not, prompts for sudo (or any other command at your choice) and copies the file.

No longer do you need to care about forgetting to use sudoedit or anything else, just edit the files you want to edit! This could change the world!!1!

But in all seriousness, this is my first neovim plugin and I barely spent an hour on it but it's simple and it gets the job done. It scratches a minor itch and maybe you'll also find it useful.