Who has the craziest (not largest per se) Production stack?

I just found out we have tomcat webapps, calling Angular, which is calling Java to call a Perl script.

Java webapplication on tomcat calling a php script which runs a shell script which calls several php scripts for wrapping an ssh tunnel for submitting remote commands on a second machine. this commands are doing callbacks to the first machine for fetching db files (shell/php/scp) 😁

My last job, with dockerized spring boot backend cluster with separately dockerized mariadb and portforwarding to a vps from the physical server to expose the api with ssl (because it was already set up on the vps and the ops guy quit) to a vuejs webapp.

PHP 3 calling some java 1.3 webapp which in turn runs a pearl script which gathers parameters to run a binary. And yes it's still used in production.