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Thank you very much for your efforts and time to shoot these videos, especially considering how hard it is to allocate resources for such work when being employed full time. It is really great stuff.
I just wanted to add a general comment that it might be good to change video description and maybe add an intro to the whole series so that it is more clear what is the video about.
For someone, who ends up viewing the video without knowing the background or being aware of this forum thread, it might bit confusing at first glance.