Matias Griese

Modular pages should save just fine, there's really nothing special in them compared to regular pages. Maybe try to isolate the issue by creating a second test site and playing...

Just a note: It would be nice to have just one regexp per method as it's way faster.

Do you mean that Grav uses the browser language even if the URL specifies the wanted language?

I just checked the code and Grav prefers the language prefix over content negotiation. It also stores language into the session (if you're using language prefix) and uses that over...

You need to implement support for the taxonomy for your type, it's not automated (yet). For now, taxonomy works only for pages and only by using the default field.

There is no timeframe for this feature at this point; I have used tags in some custom projects, but basically, it is using custom code to do that.

No progress on tags or language support (out of the box), but we have done some work towards object relationships as it's required in our upcoming API. Both tags and...

Just take a look into Flex Pages, they have implemented both. That said, the current implementation tries to mimic the old pages (which are still in use in frontend).

I will need to look how filepicker works, but it can either use a single folder or mix files from multiple. I think the latter makes more sense, but I...

You need a year field, I think it may actually exist. Datetime needs at least the full date in order to work.