Create base files and directories

.shellcheckrc

@@ -0,0 +1,2 @@
+disable=SC2016,SC2059,SC2154
+disable=SC3043

mac

@@ -1,2 +1,41 @@
 #!/bin/sh
+
+fancy_echo() {
+  local fmt="$1"; shift
+  printf "\\n$fmt\\n" "$@"
+}
+
+append_to_zshrc() {
+  local text="$1" zshrc
+  local skip_new_line="${2:-0}"
+
+  if [ -w "$HOME/.zshrc.local" ]; then
+    zshrc="$HOME/.zshrc.local"
+  else
+    zshrc="$HOME/.zshrc"
+  fi
+
+  if ! grep -Fqs "$text" "$zshrc"; then
+    if [ "$skip_new_line" -eq 1 ]; then
+      printf "%s\\n" "$text" >> "$zshrc"
+    else
+      printf "\\n%s\\n" "$text" >> "$zshrc"
+    fi
+  fi
+}
+
+trap 'ret=$?; test $ret -ne 0 && printf "failed\n\n" >&2; exit $ret' EXIT
+
+set -e
+
+if [ ! -f "$HOME/.zshrc" ]; then
+  touch "$HOME/.zshrc"
+fi
+
+if [ ! -d "$HOME/.bin/" ]; then
+  mkdir "$HOME/.bin"
+fi
+
+append_to_zshrc 'export PATH="$HOME/.bin:$PATH"'
+
 # ft=shell