There is likely already a simple templating program installed on your linux OS: envsubst. It is included as part of the gettext-base package on Ubuntu and insta

There is likely already a simple templating program installed on your linux OS: envsubst. It is included as part of the gettext-base package on Ubuntu and installed by default I believe. https://www.gnu.org/software/gettext/manual/html_node/envsubst-Invocation.html https://www.gnu.org/software/gettext/manual/html_node/envsub... The templating language looks similar to capability to that provided by templ.