I am using Cloudkit sync and looking to sync the db with obsidian
why when I login to iCloud can I not see the db’s I am syncing from Devonthink?
another thing I was wanting to was write in IAWriter save files into the db and then have them in Devonthink.
I am missing something …
Syncing is not copying the databases but using another technique.
There is a sync-datastore created in iCloud, but we don’t have access to it.
Even if we had access, this is not in db format
dam here i was thinking i could use the same db with another platform eg obsidian
and that the data was text / md files for easy access.
i moved over from the Archive and still have all its files in folder.
I think you’re not the first person to think that 
CloudKit is Apple’s sync system. It doesn’t save anything visibly to your iCloud Drive (I.e. you’re not essentially copying a set of files to your iCloud folders).
It’s far clearer to consider these as 2 entirely separate systems. Your iCloud drive is a set of folders whose content you control. CloudKit is a tool Apple makes available to sync things across different devices.
P.s. you also wouldn’t want to sync your DT database with another app. DT’s folder structure is a little quirky and the groups you’ve set up on DT wouldn’t translate to the same groups/folders in another app.
Have you tried Indexing Obsidian files into DEVONthink?
…after reading and understanding the In & Out > Importing & Indexing section in the built-in Help and manual ?
Ultimately, yes, but I was just adding my two cents to the end of your comment 
I’ll edit my “snippet” text on this topic!