koffiedrinker

I own his version of the Great Wave print, it's fabulous. I also recommend watching the playlist on YouTube to get a better understanding of how these prints are made as the article linked does not really explain or show you anything about the print making itself.

The extra cost of these tags is easily offset by the money you save on employees having to regularly update paper tags (especially in Belgium where labour costs are very high).

Did they take photos of their screen because it was running on a computer they didn't own or did they really have access to the ISOs (and for some reason didn't take screenshots)?

What's, according to you, the difference with LingQ? The premise looks the same to me: import your own content (text, audio, video, ...) and support the user in understanding it with dictionaries, conjugation guides, review sessions, ...

Yes, since you have to define the type of each field. If you have a managed schema (=you don't define a schema but let SolR auto-create it), SolR will pick the type for you. Any document with a field not matching the type will be rejected.