Centre screen, you can see a worker on a crew lift up and down the right side of the MB2 doorway, apparently working on the runner for the blind-style door #R1. In the 2nd part of the clip, I think I can see the operating rope/cable ready to be installed.
Scaffolding (when done correctly) is completely safe and OSHA approved! It's quick, easy, and common and the tool used to build just about everything.However if you need to put it up and take it back down over and over for your manufacturing process it quickly becomes inefficient. SpaceX will be switching to more permanent platforms when they make the process more efficient and inexpensive, not for safety reasons since they should already have that covered by correct use of the scaffolding.
Bamboo scaffolding is mostly just HK now (all the above examples are, and are quite old. E.g. one is the Exhibition Centre in Wanchai/Admiralty) ... Shenzhen (just over the border from HK) uses normal modern scaffolding.HK does still use it,but generally not for really big stuff anymore.--- Tony
Brief clip of Starfactory. Seems they are making good progress with the roofing.@LabPadre #R1
This morning's Star factory update