Dynamic Routing for Shared Common Directory Content

[HeilOliver]

I have a project structure like this

en/
  |- common/
      |- commonA.md
      |- commonB.md
  |- partA/
  |- partB/

What i want is at the end routes for

en/partA/common/commonA
en/partA/common/commonB
en/partB/common/commonA
en/partB/common/commonB

How can I archive this?

I have already tried the dynamic routes, but creating a js file for each md file is quite ugly.
Can I do this at folder level? Or is there one paths.js that does apply to all?