DIY tyre repair legal?

Hello! I refer to point 3.1 of this linked document:https://www.accident-berlin.de/…/StVZO_36_Reifenschaeden_Reparatur.pdf Is it now generally legal to repair damage caused by nails/screws up to 6mm diameter from the outside? For example with:https://www.amazon.de/…/ref=sr_1_1_sspa?… I’m talking about standard car tires, tubeless. What about run flat tires? In purely technical terms, I personally don’t see any difference between repairing vo n inside by means of “pilt” or from outside by means of “wurst”. The crux should be the assessment of the damage from inside, which is not possible for DIY repairers. Does anyone here have even more evidenced feed for me? Also gladly judgments, other legal regulations, technical recommendations of independent organizations. Thank you and greeting, HC