A little one-minute video on
assembling a Magnic Microlight eddy current dynamo StVZO bike light:
The Magnic Microlight Company, Inc. seems to consist of Dirk and his family - a definitive 'small business'. Anyway, I like all his 3D-printed assembly jigs and fixtures.
I have a bike that's nigh impossible to fit with a dynamo/generator light. I've got one of the Magnic Wega lights on order for that bike. I'll keep you posted re: the light itself.