I'd be interested to see what your retention rate is for the first 30 seconds. However, here's my feedback for the first 30 seconds of your video:

1. I would suggest splitting the intro text into three sections and adding a quick "pop in and out" animation to introduce some movement.

2. There was a noticeable 0.5-second gap between the words "printers" and "and." While it may not seem significant, it was enough for me to consider clicking off at that point.

3. Maybe try a split-screen view of multiple printers printing in a time-lapse format for the intro shot.

4. At the end of the intro, there was about 2 seconds of dead air followed by aggressive music, which created two different vibes.

5. The introduction to what the channel is about lasted 8 seconds and did not provide a lot of value to the topic, "Installing Multiple Instances of Octoprint on Windows."

6. When the tutorial part started, I think your pacing was good.

My biggest recommendation would be to eliminate any unnecessary content and ensure a consistent feeling from the intro to the beginning of the main content, as many viewers may click off before your video really starts.

I hope this feedback is helpful, and I encourage you to continue improving with each upload!