Making things go fast. Intriguing what the gopro can see at night. Cinelerra actually managed to stabilize it. When in timelapse mode, it locks exposure to the 1st frame. The longest exposure is 1/2 second, allowing it to see some stars. The hardware can certainly do better, but the software is crippled.
Making things go slow.
There was a final decision to do a very simple fixed point AHRS in the air. Despite thousands of AHRS algorithms being written, it's still a huge amount of work to write a new one. The simple AHRS should have 1000Hz updates & feedback.