Using a drone commercially – what should you consider?

What do I need to consider, register, etc., if I want to use my drone commercially? I already have liability insurance for the drone, I'm registered with the LBA (Federal Office for the Federal Aviation Administration), the eID is also on the drone, and I've completed the A1/A3 competency certificate. What other things are needed…

Should I install the signal booster for my DJI Mavic 2 Pro (see link) into my remote controller (standard controller) or into my drone?

This product is about: https://nolimitdronez.com/nld-25w-signal-booster-kit Here is a video where it is installed directly into the Mavic 2: https://www.youtube.com/watch?v=mQt_yE_2beg&t=61s and here is a video where exactly the same thing is installed in the controller: https://www.youtube.com/watch?v=ixN8C8PqqAo This is supposed to amplify the signal by 200%-300% for longer ranges and I'm wondering if I should buy it…

How do I find the right spare part for my bike (spoke)?

Hi, I bought a used MTB (Radon Skeen Trail Al 10.0) this week. After the second ride, a spoke broke. But how do I find the right spare part? I first tried using the MTB data sheet ( https://mtbdatabase.com/bikes/2019/radon/skeen-trail/2019-radon-skeen-trail-10-0/ ) and the specified "Newmen Evolution SL X.A25 wheelset" to find a suitable spoke, but the…