I understand that for example for npm there is the `npm deprecate` command, but I'm looking for a generic and simple way to do this.
Just noticed a VIM plugin I was using has been deprecated for a while, which caused some problems with VIM that I had to track down manually.
If you rely on a service like Github to host your repo, you have a setting to archive the repo: https://github.blog/2017-11-08-archiving-repositories/