Where do I go to chat, collaborate, and find people to partner up with?
The best place to chat with the community is our Discord server
What are packages??? For a high level overview watch Dev's Introduction to Foundry Development
What kind of stuff won last year? Check out this video
Are there any written resources for developing on Foundry VTT? Sure are!
https://foundryvtt.com/article/module-development/
https://foundryvtt.com/article/system-development/
https://foundryvtt.wiki/en/development/getting-started-with-development
What other questions do you have? Please ask away!