After a smashing start in Groningen, it has become a bit silent on that site. I am aware of two commercial parties that have active gateways. One in the south western part of the city and one near the center. It would be good to have some feedback here, to see if synergies can be made.
I do intend to install a public TTN gateway at the port of Houwerzijl 
when the device arrives next spring.