Worker loses balance on ladder - GIF

[Toolmaker51]

Derailing the thread a bit, but I have a question about this. I had to solve this problem (working drywall above a stairwell) before and my solution was to put an extension ladder from the stairs to the adjacent wall and place a 2x12 on the ladder for improvised scaffolding. Is there a better way to do this? That felt super sketchy at the time.

From the picture it looks like those are open steps so that wouldn't have worked at all, unless they made a special box to hold the ladder in place.

a] There are rare occurrences of derailing a thread, we all have entirely different circumstances and resources, continually.
b] If it felt sketchy, it was. If it felt super sketchy, you are lucky.
c] That you were able to scale it, work and finish job, is good.
d] That you're open to remedies is best of all.

I see painters and drywallers use ladder jacks all the time, but the ladders are parallel. Stuck into the steps, probably equal strength, I'd add cleats to the back side of plank to prevent shifting. Mudding joints, standing on planks is one thing. Raising sheets of material off to side or overhead, no way. Likely end up like guy with the AC unit.

In pic I posted, the decent solution would lag a 2x6+ 'rail' to floor where the ladder feet are blocked from moving. It could be entire length of landing, for the sheet joints and corner.