rearange sz.env and optimize for zsh

chezmoi.roots/_src.posix/private_dot_config/sz.env/teleport.env

@@ -0,0 +1,13 @@
+#!/usr/bin/env -S bash -c 'echo "Not a user script. source(aka .) only"'
+
+BASE_SHELL=${BASE_SHELL:-${SHELL##*/}}
+
+if is_cmd tsh && tsh version | grep -q '^Teleport'; then
+    tsh-login() {
+        command tsh login --proxy=teleport.vastdata.com "${@}"
+    }
+
+    . <(tsh --completion-script-${BASE_SHELL})
+fi
+
+# vim: set ft=sh expandtab tabstop=4 shiftwidth=4: