No, you won't. ;-)

At least, improve the documentation: wtf is this `vsc4` or `gvo` thing? What is it used for?

Why are there no constants defined for these, since you're using these magic strings in multiple places?

I understand that avoid hardcoding these is a bit difficult (unless you read some config file from a fixed location or via an env var), but you can do better than hardcoding this all over the place.