We have a generator for coming up with a skeleton for a plugin. See the technical documentation for help. Also, the [https://github.com/amahi Amahi GitHub page] contains sources for several of the plugins we have built, from smaller showcase examples to more complex plugins.

Plugins can automatically do "migrations", which are changes to the database structure of the platform. This is a little dangerous and should be done with care, but it's a really powerful feature.