documentation on package development

[coreybrett]

I have read thru the following pages...
https://www.netgate.com/docs/pfsense/development/developing-packages.html
https://www.netgate.com/docs/pfsense/development/getting-started-with-pfsense-development.html
https://www.netgate.com/docs/pfsense/book/packages/developing-packages.html

Is there anything else available to help me get started with this?

Maybe a skeleton package with a bunch of comments in the various files?