Based on a helpful recommendation, I've decided to start posting some of my novice questions about Gosu on StackExchange.
I posted a question and tagged it with "libgosu", "ruby", and "2d-games". I tried to tag it with "chingu" as well, but it appears that no Chingu tag exists, and I have nowhere near the necessary reputation to add a new tag. Would someone who has more reputation than I perhaps see fit to add a "chingu" tag on StackOverflow?
Also, in case anyone wants to help answer my question, it is located here.
I plan to post more Gosu and Chingu related questions on StackOverflow in upcoming days/weeks/months.
EDIT: I also asked this additional question.