I've worked with ciphers before so I'm familiar with the concept. Coming up with the application was easy and short, but making a write-up / documentation was the time consuming part.
The write-up took about two hours which I then used as a script for my video. The video took 1.38 hours not because I was slow to explain things, but it was just a lengthy topic.
No worries, I was just trying to get a gauge. While I'll allow him to concrete this, a video that long would like take a 8-12 hour investment building the content along with the video and editing. Interestingly enough there would have been additional time involved with transcribing that into the blog post.
The write-up took about two hours which I then used as a script for my video. The video took 1.38 hours not because I was slow to explain things, but it was just a lengthy topic.
Let me know if you have further questions!