I know the ‘harmony-api” nodejs server runs completely locally and only talks to the Harmony Hub via the LAN. Therefore, I really doubt the KuKuHarmony app needs to talk to anything on the Internet.
For those who have used KuKuHarmony, is it true that it does not support Harmony Activities? That was the reason I decided to write my very basic Harmony Hub integration.
One thing to be aware of… The “harmony-api” nodejs server seems to lock up after a few days of use for me and at least one other user. I have it installed on Ubuntu Linux 17.10 as a service. I believe the other user has it installed on a Raspberry Pi. I have scheduled a nightly Cron job to reboot my Ubuntu system every night at 4am. If anyone knows why this locks up, I’d love to know how to solve it.