Consolidate some scripts; simplify unneeded logic; take OS as arg

box_setup

@@ -1,9 +1,42 @@
 #!/bin/zsh
 
-source set_script_env_vars
+[[ -z $1 ]] &&
+    echo "OS must be passed as an arg (options: arch, artix, debian, macos)" &&
+    echo "example: ./box_setup arch" &&
+    exit 1
+
+# set env vars for installs
+local install_cmd=''
+local update_pkg_manager_and_defs_cmd=''
+local update_pkgs_cmd=''
+case $1 in
+    (arch | artix)
+        install_cmd="sudo pacman -S"
+        update_pkg_manager_and_defs_cmd='' # don't; update system instead?
+        update_pkgs_cmd='sudo pacman -Syu'
+	;;
+    (debian)
+        install_cmd="sudo apt install"
+        update_pkg_manager_and_defs_cmd='sudo apt update'
+        update_pkgs_cmd='sudo apt upgrade'
+	;;
+    (macos)
+        install_cmd="brew install"
+        update_pkg_manager_and_defs_cmd='brew update'
+        update_pkgs_cmd='brew upgrade'
+	;;
+esac
+
+export BOX_SETUP_INSTALL_COMMAND="$install_cmd"
+export BOX_SETUP_UPDATE_PKG_MANAGER_AND_DEFS_CMD="$update_pkg_manager_and_defs_cmd"
+export BOX_SETUP_UPDATE_PKGS_CMD="$update_pkgs_cmd"
+
+# make dirs and copy configs/dotfiles
 source ./src_files/.config/zsh/.zshenv
-./make_config_dirs
+./make_dirs
 ./copy_configs
-source $ZDOTDIR/.zshenv ; source $ZDOTDIR/.zshrc
-./make_org_structure_dirs
-./install_programs # TODO: do installs overwrite configs? if so, fix; worst case, re-copy
+
+# install programs
+source $ZDOTDIR/.zshenv
+source $ZDOTDIR/.zshrc
+./install_programs