New comment by mobinmob on void-packages repository

https://github.com/void-linux/void-packages/pull/35384#issuecomment-1029348142

Comment:
vault service:
- Use a config file with the -c switch instead of a directory.
- Provide a sample configuration file with the bare minimum the service needs to run (a file storage backend).
- Create a log service with vlogger.

@paper42 
@the-maldridge