Chris from GoRails here! I'm absolutely going to be getting transcriptions added. So far this has been an experiment to see if people were interested and it appears that people definitely are.
I write my scripts out when I do my videos. It helps me prepare the lesson plan. I place all the code I'll type in there too. Then I record. And then if I deviate from my script, I can just fix it up. It doesn't need to be a 1:1 thing.
But I find that this really helps speed up the process because I have a plan in place, and the script can easily turn into the transcript.
Just thought I'd share to see if there's anything you can steal from this process.