I don't know vim well. Why is it not easy to just keep using the same settings? The oldest parts of my emacs config go back at least 30 years and I have had it

I don't know vim well. Why is it not easy to just keep using the same settings? The oldest parts of my emacs config go back at least 30 years and I have had it in a git repo for ~15. I keep my entire .emacs.d versioned, including all third-party packages I depend on (so no fetching of anything from the cloud). Have had to do at most minimal changes when upgrading to newer versions and with some tiny amount of work the same config still works for emacs from around version 21 to 31 (but features are of course missing in older versions).