most stuff seem to work without errors

src/components/settings_modal/tabs/developer_tab.js

@@ -1,4 +1,6 @@
+import { mapState } from 'pinia'
 import { cacheKey, clearCache, emojiCacheKey } from 'src/services/sw/sw.js'
+import { useInstanceStore } from 'src/stores/instance.js'
 import BooleanSetting from '../helpers/boolean_setting.vue'
 import SharedComputedObject from '../helpers/shared_computed_object.js'
 
@@ -6,14 +8,6 @@ const pleromaFeCommitUrl =
   'https://git.pleroma.social/pleroma/pleroma-fe/commit/'
 
 const VersionTab = {
-  data() {
-    const instance = this.$store.state.instance
-    return {
-      backendVersion: instance.backendVersion,
-      backendRepository: instance.backendRepository,
-      frontendVersion: instance.frontendVersion,
-    }
-  },
   components: {
     BooleanSetting,
   },
@@ -22,6 +16,11 @@ const VersionTab = {
       return pleromaFeCommitUrl + this.frontendVersion
     },
     ...SharedComputedObject(),
+    ...mapState(useInstanceStore, [
+      'backendVersion',
+      'backendRepository',
+      'frontendVersion',
+    ])
   },
   methods: {
     clearAssetCache() {