Hubelino Tutorial on How To build a 420169-D1 Kugelbahn

Our Hubelino assembly day started with me explaining to my official Hubelino assemblers the existence of some track competitions assembled with Hubelino pieces, of which we can highlight the Hubelino tournament unleashed on the Jelle and Dion Bakker brothers channel.
The Hubelino Tournament was a tournament series contested on courses constructed with Hubelino marble tracks and using 20 mm marbles. The tournament consisted of multiple events run on Hubelino marble tracks, including funnel endurance, which was eventually added to the Marble League. This series was discontinued after the 2018 edition.
Only two teams from this series have made an appearance in the Marble League so far, namely the Minty Maniacs and the Bumblebees. The Black Jacks and the Golden Orbs (previously known as the Golden Wisps) also participated in the qualifiers for the 2018 Marble League, but did not qualify for the main tournament and have since ceased to exist.
Of course, my official Hubelino assemblers want to reactivate this Hubelino tournament and connect them with Lego buildings powered by Arduino and Raspberry Pi. It won't be an easy task ... especially for me....