diff --git a/open-in-swan/src/index.ts b/open-in-swan/src/index.ts
index d8d6e97..b50370d 100644
--- a/open-in-swan/src/index.ts
+++ b/open-in-swan/src/index.ts
@@ -10,36 +10,38 @@ const getPath = (space, resource) => {
   return `/${space.driveAlias}${resource.path}`
 }
 
-const extension = computed<ActionExtension>(() => ({
-  id: 'com.github.cernbox.web-extensions.open-in-swan',
-  scopes: ['resource'],
-  type: 'action',
-  extensionPointIds: ['global.files.context-actions'],
-  action: {
-    name: 'open-in-swan',
-    img: svg,
-    category: 'context',
-    label: () => 'Open in SWAN',
-    isVisible: ({ space, resources }) => {
-      if (resources.length !== 1) {
-        return false
-      }
-      if (resources[0].extension.toLowerCase() === 'ipynb'){
-        const path = getPath(space, resources)
-        return path.startsWith('/eos/')
+export default defineWebApplication({
+  setup({ applicationConfig }) {
+    const { url = 'https://cern.ch/swanserver/cgi-bin/go' } = applicationConfig || {}
+
+    const extension = computed<ActionExtension>(() => ({
+      id: 'com.github.cernbox.web-extensions.open-in-swan',
+      scopes: ['resource'],
+      type: 'action',
+      extensionPointIds: ['global.files.context-actions'],
+      action: {
+        name: 'open-in-swan',
+        img: svg,
+        category: 'context',
+        label: () => 'Open in SWAN',
+        isVisible: ({ space, resources }) => {
+          if (resources.length !== 1) {
+            return false
+          }
+          if (resources[0].extension.toLowerCase() === 'ipynb'){
+            const path = getPath(space, resources)
+            return path.startsWith('/eos/')
+          }
+          return false
+        },
+        handler: ({ space, resources }) => {
+          const path = getPath(space, resources[0])
+          console.debug('Opening in SWAN...', path)
+          window.open(`${url}?projurl=file:/${path}`, '_blank')
+        }
       }
-      return false
-    },
-    handler: ({ space, resources }) => {
-      const path = getPath(space, resources[0])
-      console.debug('Opening in SWAN...', path)
-      window.open(`https://cern.ch/swanserver/cgi-bin/go?projurl=file:/${path}`, '_blank')
-    }
-  }
-}))
+    }))
 
-export default defineWebApplication({
-  setup() {
     return {
       appInfo: {
         name: 'SWAN',