So I have recently worked on creating a new charm [operator for Redis](https://github.com/edumucelli/redis-operator). As someone new to Juju and with some knowledge on K8s I ended up struggling a bit to find where were the documentation, examples and even how to set up my local environment to make things work. Consider it as someone new to the whole context: I even searched for the instructions as someone from the outside, looking on Google for documentation -- which mostly took me to the reactive operator. @mthaddon took some time today to discuss with me and gather some feedback about how the process was to understand where things were easy and where the main roadblocks were. One thing I have mentioned is that the skeleton command `charmcraft init` was great to give something that was already in the expected format -- thanks for that. However, from there I was mostly lost. It took me around 10 days to get the Redis operator working, but I think that having the right links this can be way faster. One thing @mthaddon suggested was if the `init` command had some more documentation or pointers where to go, or what to do after you are there. This PR takes most of my notes and some links I have found during the process that could have been useful for someone starting writing a charm with the operator framework. Things that really helped me were the existing up-to-date charms such as the MongoDB (thanks @balbirthomas) one and the discussion with many people here and there that materialized with some stuff I have did in the Redis one, usage of the, e.g., [resource-oci-image](https://github.com/juju-solutions/resource-oci-image) library (thanks @johnsca) as I would have found nowhere suggesting me to use it.