confugurefs is a read-only fuse filesystem which uses Golang template and a YAML variables file to generate files on the fly.
You can use it for example to template your configuration files and automatically generate them during stat or read.
So instead of the need of something like ansible, you can simply change the variables on your system and re-read the configuration file to get the new values.
It was implemented to give a base for simple configurations tools, which now only have to change variables and restart services.
Run make to build and take a look at make setup_test and ./configurefs -help to learn how to use it.