Is it possible use “Document Service” as “Content Server” for DMS application?

Dear Colleagues,

I´d like to know if is possible to use “Document Service” as “Content Server” for DMS application.

I know that is possible “Connecting PLM / DMS to SAP Document Center”:

https://blogs.sap.com/2016/05/23/connecting-plm-dms-to-sap-document-center/

However, considering that DMS need/use a Content Server, may I consider “Connecting to External Content Repositories”: https://help.sap.com/viewer/4c3d1c6b3d744f84aab4c273f979f430/1909.001/en-US/f0c8ccb85a2f4af98abb36ffa0458a24.html

And, may I consider the “Content Management Interoperability Services (CMIS)”, as an option to solution of Content Server (external)?

Considering CMIS as an option of Content Server, how we can connect to DMS, considering the OACT and OAC0 customizing transaction?

I found these information, regarding CMIS and Content Service (external).

Content Management Interoperability Services Outbound API https://help.sap.com/viewer/4c3d1c6b3d744f84aab4c273f979f430/1909.001/en-US/3ffa31eb92664152b7a4279980725d73.html

Making the CMIS Repository Available

https://help.sap.com/viewer/3b7898bc87c0459798eda39936e10f6e/201909.001/en-US/5f87d478a9ef4f1089498ce521c9346e.html

If anybody has some idea, tips, or think that is not possible, please send your contribution/information.

Thanks in advance.

Best Regards from Brazil.

Rodrigo Arai