feat(revamp): add zsh and neovim configs, add an install script and a dependencies list

config/zsh/.zprezto/modules/emacs/init.zsh

@@ -0,0 +1,27 @@
+#
+# Configures Emacs dependency management.
+#
+# Authors: Sebastian Wiesner <lunaryorn@gmail.com>
+#
+
+# Return if requirements are not found.
+if [[ ! -d "$HOME/.cask" ]]; then
+  return 1
+fi
+
+# Prepend Cask bin directory.
+path=($HOME/.cask/bin $path)
+
+# Load Carton completion
+source "$HOME/.cask/etc/cask_completion.zsh" 2> /dev/null
+
+#
+# Aliases
+#
+
+if ! zstyle -t ':prezto:module:emacs:alias' skip; then
+  alias cai='cask install'
+  alias cau='cask update'
+  alias caI='cask init'
+  alias cae='cask exec'
+fi