Clean up copy_configs, refactor some install sripts

README.md

@@ -5,11 +5,9 @@
     - i.e. source repos, mirrors, etc. are configured
     - if on macOS, have to first install the package manager, [homebrew](https://brew.sh/)
 - zsh is installed (scripts are written for zsh)
-    - ensure ZDOTDIR is set in a persistent way for system (not just setup scripts)
-    - current approach: add `export ZDOTDIR="$HOME/.config/zsh"` to `/etc/zshenv`
+- ensure sudo access is configured for the current user (2025-01-27, not needed on macos)
 - export the env var `BOX_SETUP_OS` to indicate the operating system
     - options defined in `set_script_env_vars` file
-- ensure sudo access is configured for the current user (2025-01-27, not needed on macos)
 
 ### script run
 - git clone this repo (TODO: consider adding logic to handle automatically)