Do you have to drag your .vimrc and plugins along every time you set up a new code space? My vim setup is pretty bespoke, it would be annoying to have to set that up every time.
https://docs.github.com/en/codespaces/customizing-your-codes...
I also have a very bespoke dotfiles config that predates Codespaces (https://github.com/wincent/wincent), so I made a thin wrapper around it that makes it work (https://github.com/wincent/dotfiles). For people with less complicated set-ups (ie. basically the entire universe), it is pretty straightforward.
Personally, I just `git init && git remote add ...` in my home directory and have a .gitignore that ignores everything by default, so I have to `git add -f` whenever I want to sync a config. Submodules work well for `.vim/bundle/the-plugin`. It's also nice for syncing important zsh customizations like this one: https://github.com/MatrixManAtYrService/home2/blob/master/.z...
There are also other strategies: https://dotfiles.github.io/
Edit: Here is the CLI program that helped me set this up: