That's right.
As opposed to stock exchange software, which runs on complex micro-services cloud k8s thing-as-a-thing virtualized rotozooming engines.
Wait, no, it's literally just good-old n-tier architecture with one big server process and some database backend.
Pet food delivery startups use k8s to manage their MEAN stack. Meanwhile grown-ups still have "monoliths" connected to something like Oracle, DB2 or MS SQL server, because that's obviously the most reliable setup.
The cloud/k8s stuff is an ad-hoc wannabe mainframe built on shaky foundations.
I bet you had a lot of fun writing all this custom stuff. Unfortunately the value of a custom something with custom framework and custom this and that is approximately zero.