I use org-mode to keep organize most of my dotfiles.

For example:

#+BEGIN_SRC sh :tangle ~/.zshrc
 alias l="ls -1AXF --group-directories-first"
 alias ll="ls -XAF --group-directories-first"
#+END_SRC

You can save this snipp code in a file with extension .org and open it in Emacs.

Now you tangle the file by pressing C-c C-v t. This will create a file with the name .zshrc in the home directory (~).