Been using Wyze camera’s (Cam OG) for 2+ years. If you load an sdcard into the camera it does store locally, overwriting the oldest footage as it goes. You can then browse the footage on the sdcard and save as a video file via the app. I’ve done 20+ minute captures of the local wildlife and uploaded to YouTube without issue.
While I never had one I remember following the build page, and I was crushed when the price point was far too high for me to even consider getting one. However I did ride around with a carputer for some time before an affordable commercial head unit with CD/MP3 capability became available.
It was an off the shelf IBM desktop in the backseat, powered by an inverter, and controlled by a numeric keypad stuck to the center console with some velcro. Getting music on it required hauling the whole thing in the house, but at the time it felt pretty awesome to have pieced together a solution that worked.
My curiosity got the best of me, here’s the link to Wright: https://www.wrightmfg.com/products/mowers/commercial/stand-on/robotic-zk/
The Mower
The Software
As a place to start, here is what I think is a well curated list of top titles for many retro systems including the SMS and Genesis.
https://archive.org/details/retro-roms-best-set