They have actually managed to get Nahmii up and running in a real production environment now. i.e an actual commercial adoption of blockchain technology:
https://medium.com/hubii/the-first-commercial-product-on-an-ethereum-second-layer-a-partnership-with-fjord-maritime-122654b5a07eI think this might be a hidden gem.
Here is a great compressed overview of the timeline:
https://heindauven.medium.com/hubii-nahmii-extending-the-timeline-286008d4f27b