How to use Carbogrid

I would suggest you do not use it.

It has not been updated for 5 years. It is written for CI 2.0, the main domain is dead and the 'features' listed may not even be supported with the libraries it relies on any more. It might take quite a bit of work to bring it up to date,

Which bit of it drew your interest?

IF you update and get it running for CI3, please fork it and add it to github, would be interesting to see what it does and how it works.

Best wishes,

Paul.