Add verslagen as a data source instead of a symlink

Rules

@@ -134,6 +134,7 @@ end
 # REPORTS
 #
 
+# Note drive/verslagen is 'linked' as a data source to /about/verslagen/
 compile '/about/verslagen/*/*.md', rep: :pdf do
   filter :pandoc_pdf, args: { f: :markdown } if production?
   write ext: (production? ? 'pdf' : 'md')

content/about/verslagen

@@ -1 +0,0 @@
-../../drive/verslagen/

nanoc.yaml

@@ -84,6 +84,11 @@ data_sources:
     items_root: /node_modules
     content_dir: node_modules
     layouts_dir: null
+  -
+    type: filesystem
+    items_root: /about/verslagen/
+    content_dir: drive/verslagen/
+    layouts_dir: null
 
 # Configuration for the “check” command, which run unit tests on the site.
 checks: