@pantulis I am not sure I follow you
The reason for the convoluted approach is the lack of a Devonthink API. While it would be wonderful if Devonthink were to publish an API, it is almost a sure bet that they will not.
If I could upload all my Devonthink data to elsewhere, then I would just upload it to a web-based database such as Postgres. But I don’t want to do that because then I would no longer be using Devonthink; there are many features of Devonthink that are not available in any other App I know of.