the best way to pass args into ns_job is using subst:
Avoid using subst the way you are suggesting, unless you are absolutely certain of the contents of the variable (e.g., bar). Using subst without full knowledge of the variable's content can lead to unexpected issues, no matter you’re using AOLserver or NaviServer.
Concerning a move to NaviServer: the first challenge when moving to NaviServer is adapting your configuration file. To save time, I recommend taking the latest sample configuration file for OpenACS provided in the NaviServer distribution and then updating the necessary values (such as ports, database names, etc.).
consider upgrading your OS, Tcl version, and database client, ...
If your site is subject to external audits, upgrading your operating system, Tcl version, and database client is not optional. Auditors often highlight the risks associated with using outdated or unmaintained software. Moreover, newer versions typically come with essential security improvements that help safeguard your system.
