Not knowing anything about it (being a Swede), I wonder have you manage to get widevine running in OSMC?
From Matt’s page:
Need
- Hulu Subscription (not free)
- Kodi with Widevine Support (free)
- USA IP Address
- 5 minutes
I can’t help with point 1,3 or 4. But Widevine for OSMC has been a “go to for me”. This is assuming you are running v.19 and Bullseye (latest and greatest)
Ssh into you box, run this command:
sudo apt-get install python3-pycryptodome python3-cryptography
then in Kodi:
Settings->Addon browser->Install from repository->Kodi repo.(if you have multiple)->Program addons->inputstream Helper → install and enable. Start it and download widevine.