I wonder if modifying the 10 22 to a system like the Savage model 6 series would be do able.
In the savage there are two holes on the right side of the receiver (besides however many "gills" that particular model has) on many of the rifles. In some there is only one hole which functions as a bolt hold open system. The bolt handle can be pushed through from the ejection port side enough to catch in the hole on the other side and lock the bolt open on some the forward hole works the same way to hold the bolt closed when firing. One fires, pulls the handle to the right, pulls and releases the bolt handle, presses the handle "in" and repeat or leaves the bolt handle "out" and the Savage functions as a semi auto. BTW those tube feeders can use Short long or long rifle in "bolt action mode" and some will cycle even shorts semi auto. I have seen one that cycled CCI CB longs semi auto most of the time and ever time as a bolt action.
Can't imagine it would be too hard to make up a moveable bolt handle and a slot for the far end of it on the 10/22.
I notice the folks that sold bolt blockers in the past that fit behind the handle and in the ejection port and were held on with a magnet, cautioned against using any but subsonic rounds with it in place.
Are the devices in the video basically a see saw on the side of the bolt so when the rear is up it catches on the back of the ejection port?
-kBob