That is a fascinating image. It lets you see how color information is encoded in video. The vertical green bar is a glimpse of the luma (Y) channel. To the left is the chrominance blue (Cb) and to the right is the chrominance red (Cr). But the chroma channels are (obviously) supposed to be aligned with the luma, yielding full color video. Unfortunately, I can't offer a suggestion why they aren't aligned.
I used to spend hours per day on Reddit. Now I visit once or twice a month, read-only. My subscription is canceled and all my posts/comments deleted. My "front page of the Internet" is now here.
I have a Dell R720XD as my home NAS. I bought it used off eBay. The XD version has 12x 3.5" drive bays. I have eight of them occupied with 8TB spinning disks. The server runs TrueNAS and the disks are part of a ZFS RAID. I spent a few hundred dollars on the server itself, a hundred or so on more RAM, and $2200 on the hard drives.
I don't like it when a project's website only says "here, run this Docker container" and doesn't have manual setup instructions. I don't want to just run a black box Docker container, I want to know what the knobs are and what they do.
I'm still on Facebook because of that's how I keep up with friends I no longer live near, but you know what Facebook has been loath to show me recently? Posts from my friends. Easily 75% of my feed is sponsored or "recommended" content. If they're not going to show me the one and only thing I come to the site to see, I might as well not come to the site.