diff --git a/frontend/src/components/subscriptions/SourceFormDialog.vue b/frontend/src/components/subscriptions/SourceFormDialog.vue
index 33e1f6c..15b2e63 100644
--- a/frontend/src/components/subscriptions/SourceFormDialog.vue
+++ b/frontend/src/components/subscriptions/SourceFormDialog.vue
@@ -20,7 +20,13 @@
           Adding source for <strong>{{ initialArtist.name }}</strong>
         </div>
 
-        <v-select v-model="platform" :items="store.platforms" label="Platform" />
+        <v-select
+          v-model="platform"
+          :items="platformsItems"
+          item-value="value"
+          item-title="title"
+          label="Platform"
+        />
         <v-text-field v-model="url" label="URL" :error-messages="urlError" />
         <v-switch v-model="enabled" label="Enabled" color="accent" hide-details />
 
@@ -65,6 +71,7 @@
 <script setup>
 import { computed, ref, watch } from 'vue'
 import { useSourcesStore } from '../../stores/sources.js'
+import { usePlatformsStore } from '../../stores/platforms.js'
 
 const props = defineProps({
   modelValue: { type: Boolean, default: false },
@@ -73,6 +80,11 @@ const props = defineProps({
 })
 const emit = defineEmits(['update:modelValue', 'saved'])
 const store = useSourcesStore()
+const platformsStore = usePlatformsStore()
+
+const platformsItems = computed(() =>
+  platformsStore.list.map(p => ({ value: p.key, title: p.name }))
+)
 
 const artistChoice = ref(null)
 const artistMatches = ref([])
@@ -128,7 +140,7 @@ const canSave = computed(() => !jsonError.value && !!url.value.trim())
 watch(() => props.modelValue, async (open) => {
   if (!open) return
   urlError.value = ''; jsonError.value = ''
-  await store.loadPlatforms()
+  await platformsStore.loadAll()
   if (props.source) {
     platform.value = props.source.platform
     url.value = props.source.url
@@ -139,7 +151,7 @@ watch(() => props.modelValue, async (open) => {
     jsonText.value = JSON.stringify(co, null, 2)
     artistChoice.value = { id: props.source.artist_id, name: props.source.artist_name }
   } else {
-    platform.value = store.platforms[0] || 'patreon'
+    platform.value = platformsStore.list[0]?.key || 'patreon'
     url.value = ''; enabled.value = true
     structuredVideos.value = true; structuredSince.value = ''
     jsonText.value = '{}'
diff --git a/frontend/src/stores/sources.js b/frontend/src/stores/sources.js
index 48a9c59..80ba142 100644
--- a/frontend/src/stores/sources.js
+++ b/frontend/src/stores/sources.js
@@ -7,8 +7,6 @@ export const useSourcesStore = defineStore('sources', () => {
 
   // keyed cache: null => all sources, number => artist_id filtered
   const byArtist = ref(new Map())
-  const platforms = ref([])
-  const platformsLoaded = ref(false)
   const loading = ref(false)
   const error = ref(null)
 
@@ -40,13 +38,6 @@ export const useSourcesStore = defineStore('sources', () => {
     }
   }
 
-  async function loadPlatforms() {
-    if (platformsLoaded.value) return
-    const body = await api.get('/api/sources/platforms')
-    platforms.value = body.platforms
-    platformsLoaded.value = true
-  }
-
   function _invalidate(artistId) {
     byArtist.value.delete(null)
     if (artistId != null) byArtist.value.delete(artistId)
@@ -99,9 +90,9 @@ export const useSourcesStore = defineStore('sources', () => {
   }
 
   return {
-    byArtist, platforms, platformsLoaded, loading, error,
+    byArtist, loading, error,
     allSources,
-    loadAll, loadForArtist, loadPlatforms,
+    loadAll, loadForArtist,
     create, update, remove,
     findOrCreateArtist, autocompleteArtist,
     sourcesByArtistGrouped,
diff --git a/frontend/src/views/SubscriptionsView.vue b/frontend/src/views/SubscriptionsView.vue
index 9ceefa4..d9add59 100644
--- a/frontend/src/views/SubscriptionsView.vue
+++ b/frontend/src/views/SubscriptionsView.vue
@@ -52,12 +52,14 @@
 import { computed, onMounted, ref, watch } from 'vue'
 import { useRoute } from 'vue-router'
 import { useSourcesStore } from '../stores/sources.js'
+import { usePlatformsStore } from '../stores/platforms.js'
 import ArtistSection from '../components/subscriptions/ArtistSection.vue'
 import SourceFormDialog from '../components/subscriptions/SourceFormDialog.vue'
 import ArtistCreateDialog from '../components/subscriptions/ArtistCreateDialog.vue'
 
 const route = useRoute()
 const store = useSourcesStore()
+const platformsStore = usePlatformsStore()
 
 const artistFilter = computed(() => {
   const raw = route.query.artist_id
@@ -73,7 +75,7 @@ const showArtistDialog = ref(false)
 
 async function refresh() {
   await store.loadAll()
-  await store.loadPlatforms()
+  await platformsStore.loadAll()
   if (artistFilter.value != null) {
     openSections.value = new Set([artistFilter.value])
     expandAll.value = false
diff --git a/frontend/test/sources.spec.js b/frontend/test/sources.spec.js
index 3949928..1b15577 100644
--- a/frontend/test/sources.spec.js
+++ b/frontend/test/sources.spec.js
@@ -41,16 +41,6 @@ describe('sources store', () => {
     expect(calls[0]).toContain('artist_id=7')
   })
 
-  it('loadPlatforms caches the platforms list', async () => {
-    const s = useSourcesStore()
-    let n = 0
-    stubFetch(() => { n++; return { status: 200, body: { platforms: ['patreon'] } } })
-    await s.loadPlatforms()
-    await s.loadPlatforms()  // second call should hit cache
-    expect(n).toBe(1)
-    expect(s.platforms).toEqual(['patreon'])
-  })
-
   it('create invalidates the all-cache and the artist-cache', async () => {
     const s = useSourcesStore()
     s.byArtist.set(null, [])