So I got OPNsense to run, seems to work.
Its to replace OpenWRT box with more power, but also more ease and comfort.
The only thing I seem to still have a problem with is the Captive Portal.
No authentication needed, splash-page only. I configured it, but it does not want to start.
And I am not really sure where to get logs, the only log I got is rather thin.
See the attached pics.
Any assistance appreciated.
So not sure why, but after yet another restart (I did do one before) the portal became active.
I was not even restarting it because of the portal, something else.
And it even seems to work. Now to find out how to make a template.