app/components/app-menu/settings/nostr.gjs

@@ -4,12 +4,14 @@ import { action } from '@ember/object';
 import { tracked } from '@glimmer/tracking';
 import { service } from '@ember/service';
 import { fn } from '@ember/helper';
+import eq from 'ember-truth-helpers/helpers/eq';
 import Icon from '#components/icon';
 import {
   excludeRequiredRelays,
   mergeRequiredRelays,
   normalizeRelayUrl,
 } from '../../../utils/nostr';
+import { DEFAULT_BLOSSOM_SERVER } from '../../../services/blossom';
 
 const stripProtocol = (url) => (url ? url.replace(/^wss?:\/\//, '') : '');
 
@@ -89,6 +91,15 @@ export default class AppMenuSettingsNostr extends Component {
     });
   }
 
+  get mediaServerOptions() {
+    const servers = this.nostrData.blossomServers;
+    return servers.length ? servers : [DEFAULT_BLOSSOM_SERVER];
+  }
+
+  get hasMultipleMediaServers() {
+    return this.mediaServerOptions.length > 1;
+  }
+
   @action
   updateNewReadRelay(event) {
     this.newReadRelay = event.target.value;
@@ -342,31 +353,57 @@ export default class AppMenuSettingsNostr extends Component {
         </div>
 
         <div class="form-group">
-          <label for="nostr-photo-fallback-uploads">Upload photos to fallback
+          <label for="nostr-media-server">Media server</label>
-            servers</label>
           <select
-            id="nostr-photo-fallback-uploads"
+            id="nostr-media-server"
             class="form-control"
-            {{on "change" (fn @onChange "nostrPhotoFallbackUploads")}}
+            {{on "change" (fn @onChange "nostrMediaServer")}}
           >
-            <option
+            {{#each this.mediaServerOptions as |server|}}
-              value="true"
+              <option
-              selected={{if this.settings.nostrPhotoFallbackUploads "selected"}}
+                value={{server}}
-            >
+                selected={{if
-              Yes
+                  (eq server this.settings.nostrMediaServer)
-            </option>
+                  "selected"
-            <option
+                }}
-              value="false"
+              >
-              selected={{unless
+                {{server}}
-                this.settings.nostrPhotoFallbackUploads
+              </option>
-                "selected"
+            {{/each}}
-              }}
-            >
-              No
-            </option>
           </select>
         </div>
 
+        {{#if this.hasMultipleMediaServers}}
+          <div class="form-group">
+            <label for="nostr-photo-fallback-uploads">Upload photos to fallback
+              servers</label>
+            <select
+              id="nostr-photo-fallback-uploads"
+              class="form-control"
+              {{on "change" (fn @onChange "nostrPhotoFallbackUploads")}}
+            >
+              <option
+                value="true"
+                selected={{if
+                  this.settings.nostrPhotoFallbackUploads
+                  "selected"
+                }}
+              >
+                Yes
+              </option>
+              <option
+                value="false"
+                selected={{unless
+                  this.settings.nostrPhotoFallbackUploads
+                  "selected"
+                }}
+              >
+                No
+              </option>
+            </select>
+          </div>
+        {{/if}}
+
         <div class="form-group">
           <label>Cached data</label>
           <button

app/services/blossom.js

@@ -24,14 +24,15 @@ export default class BlossomService extends Service {
   @service settings;
 
   get servers() {
-    const servers = this.nostrData.blossomServers;
+    const discovered = this.nostrData.blossomServers;
-    const allServers = servers.length ? servers : [DEFAULT_BLOSSOM_SERVER];
+    const mainServer = this.settings.nostrMediaServer || DEFAULT_BLOSSOM_SERVER;
+    const fallbacks = discovered.filter((server) => server !== mainServer);
 
     if (!this.settings.nostrPhotoFallbackUploads) {
-      return [allServers[0]];
+      return [mainServer];
     }
 
-    return allServers;
+    return [mainServer, ...fallbacks];
   }
 
   async _getAuthHeader(action, hash, serverUrl) {

app/services/nostr-data.js

@@ -15,6 +15,7 @@ import {
   uniqNormalizedRelays,
 } from '../utils/nostr';
 import { getGeohashPrefixesInBbox } from '../utils/geohash-coverage';
+import { DEFAULT_BLOSSOM_SERVER } from './blossom';
 
 const DIRECTORY_RELAYS = [
   'wss://relay.primal.net',
@@ -437,6 +438,16 @@ export default class NostrDataService extends Service {
         } else {
           this.blossomServers = [];
         }
+
+        if (this.blossomServers.length > 0) {
+          const current = this.settings.nostrMediaServer;
+          if (
+            current === DEFAULT_BLOSSOM_SERVER ||
+            !this.blossomServers.includes(current)
+          ) {
+            this.settings.update('nostrMediaServer', this.blossomServers[0]);
+          }
+        }
       });
 
     // 1. Await cache initialization and populate the EventStore with local data

app/services/settings.js

@@ -1,12 +1,15 @@
 import Service from '@ember/service';
 import { tracked } from '@glimmer/tracking';
 
+import { DEFAULT_BLOSSOM_SERVER } from './blossom';
+
 const DEFAULT_SETTINGS = {
   overpassApi: 'https://overpass-api.de/api/interpreter',
   mapKinetic: true,
   photonApi: 'https://photon.komoot.io/api/',
   showQuickSearchButtons: true,
   nostrPhotoFallbackUploads: false,
+  nostrMediaServer: DEFAULT_BLOSSOM_SERVER,
   nostrReadRelays: null,
   nostrWriteRelays: null,
   nostrReadRelayExclusions: null,
@@ -21,6 +24,7 @@ export default class SettingsService extends Service {
   @tracked showQuickSearchButtons = DEFAULT_SETTINGS.showQuickSearchButtons;
   @tracked nostrPhotoFallbackUploads =
     DEFAULT_SETTINGS.nostrPhotoFallbackUploads;
+  @tracked nostrMediaServer = DEFAULT_SETTINGS.nostrMediaServer;
   @tracked nostrReadRelays = DEFAULT_SETTINGS.nostrReadRelays;
   @tracked nostrWriteRelays = DEFAULT_SETTINGS.nostrWriteRelays;
   @tracked nostrReadRelayExclusions = DEFAULT_SETTINGS.nostrReadRelayExclusions;
@@ -114,6 +118,7 @@ export default class SettingsService extends Service {
     this.photonApi = finalSettings.photonApi;
     this.showQuickSearchButtons = finalSettings.showQuickSearchButtons;
     this.nostrPhotoFallbackUploads = finalSettings.nostrPhotoFallbackUploads;
+    this.nostrMediaServer = finalSettings.nostrMediaServer;
     this.nostrReadRelays = finalSettings.nostrReadRelays;
     this.nostrWriteRelays = finalSettings.nostrWriteRelays;
     this.nostrReadRelayExclusions = finalSettings.nostrReadRelayExclusions;
@@ -132,6 +137,7 @@ export default class SettingsService extends Service {
       photonApi: this.photonApi,
       showQuickSearchButtons: this.showQuickSearchButtons,
       nostrPhotoFallbackUploads: this.nostrPhotoFallbackUploads,
+      nostrMediaServer: this.nostrMediaServer,
       nostrReadRelays: this.nostrReadRelays,
       nostrWriteRelays: this.nostrWriteRelays,
       nostrReadRelayExclusions: this.nostrReadRelayExclusions,

tests/integration/components/app-menu/settings/nostr-test.gjs

@@ -8,6 +8,7 @@ import {
   mergeRequiredRelays,
   uniqNormalizedRelays,
 } from 'marco/utils/nostr';
+import { DEFAULT_BLOSSOM_SERVER } from 'marco/services/blossom';
 
 class MockNostrDataService extends Service {
   @service settings;
@@ -18,6 +19,8 @@ class MockNostrDataService extends Service {
   mailboxReadRelays = ['wss://mailbox.example.com'];
   mailboxWriteRelays = ['wss://mailbox-write.example.com'];
 
+  blossomServers = [];
+
   get configuredReadRelays() {
     const configured = uniqNormalizedRelays([
       ...this.mailboxReadRelays,
@@ -185,4 +188,33 @@ module('Integration | Component | app-menu/settings/nostr', function (hooks) {
       'wss://mailbox-write.example.com',
     ]);
   });
+
+  test('media server dropdown shows only the default server when no blossom servers discovered', async function (assert) {
+    const element = await renderAndOpenDetails(this);
+    const select = element.querySelector('#nostr-media-server');
+
+    assert.dom(select).exists();
+    assert.strictEqual(select.options.length, 1);
+    assert.dom(select.options[0]).hasValue(DEFAULT_BLOSSOM_SERVER);
+    assert.dom(select.options[0]).hasText(DEFAULT_BLOSSOM_SERVER);
+    assert.strictEqual(select.value, DEFAULT_BLOSSOM_SERVER);
+    assert
+      .dom('#nostr-photo-fallback-uploads')
+      .doesNotExist('fallback toggle hidden with single media server');
+  });
+
+  test('media server dropdown lists discovered blossom servers', async function (assert) {
+    const servers = ['https://cdn.example.com', 'https://cdn.satellite.earth'];
+    this.owner.lookup('service:nostrData').blossomServers = servers;
+
+    const element = await renderAndOpenDetails(this);
+    const select = element.querySelector('#nostr-media-server');
+
+    assert.strictEqual(select.options.length, servers.length);
+    assert.dom(select.options[0]).hasValue(servers[0]);
+    assert.dom(select.options[1]).hasValue(servers[1]);
+    assert
+      .dom('#nostr-photo-fallback-uploads')
+      .exists('fallback toggle visible with multiple media servers');
+  });
 });