[Custom Components] Request for Select Input example with data from external source

[hbaldwinRPT]

I've been trying to get a custom select component working with data from an outside source int othe builder with 0 success. Tried to build off of the rating component and switch some things up but trying to get data from an external source and have it useable in the builder and render has eluded me. Is there a chance we could see an example of making a custom select component? for my purposes I dont even want the user to be able to use an edit form, just want to give them the ability to drag and drop a select component into the builder that will when rendered give them a selection of users gathered by an api call.

Anything like that would be great! Ive tried a custom template, extending the forms and components etc etc, but it just doesnt seem to want to work. wither i get something sort of together but the data wont populate, or the data will populate but the component won't render.

I've not included my code because I don't really want a fix to what I am doing so much as a guide as to the proper way to create something of the like.