Programmatically updating an app config and re-installing

I am installing via kots install and providing my config file. Ideally, I would be able to complete that install, modify the config, and then re-deploy/update my deployment.

Specifically, I have one of my charts gated behind a flag in my config and I want to wait until my core application comes up before this next chart is deployed.

I have tried doing an install, modifying the config, and then doing an upstream update, but there doesn’t appear to be a way to pass in an updated config when doing an update.

If this state is stored in k8s somewhere, could you point me towards it? Would editing it there and then doing an update work?

Any help would be greatly appreciated. Thanks!