I’ve probably fallen into this trap. Several years ago I had to have offline voice recognition and I used some library I found online for the iPhone. It worked

I’ve probably fallen into this trap. Several years ago I had to have offline voice recognition and I used some library I found online for the iPhone. It worked perfectly from a functionality perspective. But I have no idea how it worked except it was based on some CMU code. I simply didnt have the energy nor desire to audit its performance. It performed well enough.