Index: src/views/partials/profile-sheet.ejs
===================================================================
--- src/views/partials/profile-sheet.ejs	(revision 7bc636b391c66ac399c33e54f7173a022c6a3cbd)
+++ src/views/partials/profile-sheet.ejs	(revision b94c08ee93afe04552667726a69e8b5eb5629d16)
@@ -21,4 +21,6 @@
                  : (user.role === 'editor') ? 'redacteur'
                  : '';
+// Site-scoped link (post-aanmaken) heeft in hub de /user/<slug>-prefix nodig.
+const _base = (typeof siteUrlBase !== 'undefined' && siteUrlBase) ? siteUrlBase : '';
 %>
 
@@ -64,7 +66,7 @@
       <% if (_canPost) { %>
       <li role="none">
-        <a href="/posts/new" class="profile-sheet-item" role="menuitem" data-close-sheet
-           hx-get="/posts/new?partial=1" hx-target="#pcms-main" hx-swap="innerHTML"
-           hx-push-url="/posts/new" hx-indicator="#pcms-loading">
+        <a href="<%= _base %>/posts/new" class="profile-sheet-item" role="menuitem" data-close-sheet
+           hx-get="<%= _base %>/posts/new?partial=1" hx-target="#pcms-main" hx-swap="innerHTML"
+           hx-push-url="<%= _base %>/posts/new" hx-indicator="#pcms-loading">
           <svg class="psi-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M12 20h9"/><path d="M16.5 3.5a2.121 2.121 0 0 1 3 3L7 19l-4 1 1-4L16.5 3.5z"/></svg>
           <span class="psi-label">Nieuwe post</span>