Jib crane - video

[Frank S]

I agree with NortonDommi on the structural question about the wall.
also his bracing and mounting is wrong the brace on the bottom could have been shortened by way over half if he had extended this mounting plate up the wall as high as possible then used a simple lightweight tensioning brace on the top angled down from an higher point to near the end of the beam. This would also spread the point loading on the wall much better. the 2 strongest points on any wall no matter the construction materials are the very bottom and the very top