This is the assembly of Wendelstein 7-X, also over the span of a decade. It is a stellarator-type test reactor in Germany. Stellarators offer the advantage of possibly continous operations while tokamaks need to be pulsed but that necessitates a lot of contorted coils.
- Up an Atom : https://www.youtube.com/watch?v=A5RxUW7VC-A
- Practical Engineering : https://www.youtube.com/watch?v=gD3dMzv1vIQ
And for the french speaker an older take from Monsieur Bidouille : https://www.youtube.com/watch?v=36WpRwY2DYw
And there appear to be a dedicated YT channel : https://www.youtube.com/@iterorganization/videos