After many questions and much prompting (and frankly some jealousy over some other teachers' videos), I have made a video about my how I came to the flipped classroom. It is nothing super fancy, but hopefully it answers many of the questions about how a foreign language teacher decided to start flipping.
My flipped class story
Here is the AP thematic document I refer to for those who have not seen it. This is from the AP College Board course framework for the Spanish Language exam.