diff --git a/src/app/plugins/call/CallEmbed.ts b/src/app/plugins/call/CallEmbed.ts
index 0ef609645..fafe05773 100644
--- a/src/app/plugins/call/CallEmbed.ts
+++ b/src/app/plugins/call/CallEmbed.ts
@@ -218,6 +218,9 @@ export class CallEmbed {
       //  - transparent background so the room wallpaper shows through natively
       lotusCallState: 'true',
       lotusTransparent: 'true',
+      // [Gitea #293] the fork applies the theme with transparency anyway, and
+      // warned in every call that lotusTheme wasn't set
+      lotusTheme: 'true',
       // [Gitea #43] The fork hides its own footer (we draw the call bar) and
       // sets its root color-scheme from the theme, instead of us injecting CSS.
       lotusHostControls: 'true',
diff --git a/vite.config.js b/vite.config.js
index faa37921d..0d6b2ef7b 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -87,97 +87,106 @@ function copyPdfWorker() {
   };
 }
 
-// Lotus ML noise suppression: ship the RNNoise worklet/wasm + our getUserMedia
-// shim alongside the vendored Element Call bundle, and inject the shim <script>
-// into EC's index.html so it runs before EC captures the mic. Runs after
-// viteStaticCopy has populated dist/public/element-call (closeBundle order).
+// The denoise assets the fork loads from ./denoise/ at runtime, as
+// [source, path under denoise/] pairs; `dir: true` entries are whole trees.
+// Shared by the build copy and the dev server (Gitea #293).
+function denoiseSources() {
+  const sapphi = path.resolve('node_modules/@sapphi-red/web-noise-suppressor/dist');
+  const dfnVendor = path.resolve('build/denoise-vendor/deepfilternet');
+  return {
+    // All bundled denoise assets are REQUIRED: every entry backs a model the
+    // UI can select (RNNoise, Speex) or the optional noise gate.
+    sapphi: [
+      [path.join(sapphi, 'rnnoise/workletProcessor.js'), 'rnnoiseWorklet.js'],
+      [path.join(sapphi, 'rnnoise.wasm'), 'rnnoise.wasm'],
+      [path.join(sapphi, 'rnnoise_simd.wasm'), 'rnnoise_simd.wasm'],
+      [path.join(sapphi, 'speex/workletProcessor.js'), 'speexWorklet.js'],
+      [path.join(sapphi, 'speex.wasm'), 'speex.wasm'],
+      [path.join(sapphi, 'noiseGate/workletProcessor.js'), 'noiseGateWorklet.js'],
+    ],
+    // DTLN (@workadventure/noise-suppression): a self-contained ES module that
+    // resolves its own worklet, LiteRT WASM runtime and TFLite models via
+    // `import.meta.url`, so its whole dist/ tree is served intact.
+    dtln: [path.resolve('node_modules/@workadventure/noise-suppression/dist'), 'workadventure'],
+    // DeepFilterNet 3: the ESM (worklet inlined) plus the vendored wasm and ONNX
+    // model (CDN-free / Tauri-CSP safe), in the package's expected v2/ layout.
+    dfn: [
+      [
+        path.resolve('node_modules/deepfilternet3-noise-filter/dist/index.esm.js'),
+        'deepfilternet/index.esm.js',
+      ],
+      [path.join(dfnVendor, 'v2/pkg/df_bg.wasm'), 'deepfilternet/v2/pkg/df_bg.wasm'],
+      [
+        path.join(dfnVendor, 'v2/models/DeepFilterNet3_onnx.tar.gz'),
+        'deepfilternet/v2/models/DeepFilterNet3_onnx.tar.gz',
+      ],
+    ],
+  };
+}
+
+// Lotus ML noise suppression: ship the denoise worklets/wasm/models alongside
+// the vendored Element Call bundle. Runs after viteStaticCopy has populated
+// dist/public/element-call (closeBundle order). [Gitea #293] The dev server
+// serves the same files at the same URLs, so `npm start` can test denoise.
 function lotusDenoise() {
+  const DEV_PREFIX = '/public/element-call/denoise/';
   return {
     name: 'lotus-denoise',
+    configureServer(server) {
+      const { sapphi, dtln, dfn } = denoiseSources();
+      const files = new Map([...sapphi, ...dfn].map(([src, rel]) => [rel, src]));
+      const types = { '.js': 'text/javascript', '.wasm': 'application/wasm' };
+      server.middlewares.use((req, res, next) => {
+        const url = (req.url ?? '').split('?')[0];
+        if (!url.startsWith(DEV_PREFIX)) return next();
+        const rel = decodeURIComponent(url.slice(DEV_PREFIX.length));
+        let file = files.get(rel);
+        if (!file && rel.startsWith(`${dtln[1]}/`)) {
+          const candidate = path.resolve(dtln[0], rel.slice(dtln[1].length + 1));
+          if (candidate.startsWith(dtln[0] + path.sep)) file = candidate;
+        }
+        if (!file || !fs.existsSync(file)) return next();
+        res.setHeader('Content-Type', types[path.extname(file)] ?? 'application/octet-stream');
+        fs.createReadStream(file).pipe(res);
+        return undefined;
+      });
+    },
     closeBundle() {
       const ecDir = path.resolve('dist/public/element-call');
       if (!fs.existsSync(ecDir)) return;
 
       const denoiseDir = path.join(ecDir, 'denoise');
       fs.mkdirSync(denoiseDir, { recursive: true });
+      const { sapphi, dtln, dfn } = denoiseSources();
 
-      const sapphi = path.resolve('node_modules/@sapphi-red/web-noise-suppressor/dist');
-      // All bundled denoise assets are REQUIRED: every entry backs a model the
-      // UI can select (RNNoise, Speex) or the optional noise gate. A missing
-      // source means a partial/changed install would otherwise silently ship a
-      // broken ML feature (worklet 404 -> raw mic), so we fail the build instead.
-      const assets = [
-        [
-          path.join(sapphi, 'rnnoise/workletProcessor.js'),
-          path.join(denoiseDir, 'rnnoiseWorklet.js'),
-        ],
-        [path.join(sapphi, 'rnnoise.wasm'), path.join(denoiseDir, 'rnnoise.wasm')],
-        [path.join(sapphi, 'rnnoise_simd.wasm'), path.join(denoiseDir, 'rnnoise_simd.wasm')],
-        [path.join(sapphi, 'speex/workletProcessor.js'), path.join(denoiseDir, 'speexWorklet.js')],
-        [path.join(sapphi, 'speex.wasm'), path.join(denoiseDir, 'speex.wasm')],
-        [
-          path.join(sapphi, 'noiseGate/workletProcessor.js'),
-          path.join(denoiseDir, 'noiseGateWorklet.js'),
-        ],
-      ];
-      const missing = assets.filter(([s]) => !fs.existsSync(s)).map(([s]) => s);
+      // A missing source means a partial/changed install would otherwise
+      // silently ship a broken ML feature (worklet 404 -> raw mic), so we fail
+      // the build instead.
+      const missing = sapphi.filter(([s]) => !fs.existsSync(s)).map(([s]) => s);
       if (missing.length > 0) {
         throw new Error(
           `[lotus-denoise] Required denoise asset(s) missing — build aborted to avoid shipping a broken ML feature:\n  ${missing.join('\n  ')}`,
         );
       }
-      assets.forEach(([s, d]) => fs.copyFileSync(s, d));
+      sapphi.forEach(([s, rel]) => fs.copyFileSync(s, path.join(denoiseDir, rel)));
 
-      // DTLN (@workadventure/noise-suppression): unlike the flat sapphi
-      // worklets, this package is a self-contained ES module that resolves its
-      // own AudioWorklet processor, LiteRT WASM runtime and TFLite models via
-      // `import.meta.url`. So we copy its whole dist/ tree intact to
-      // denoise/workadventure/ (preserving assets/ + vendor/) and let the shim
-      // dynamic-import denoise/workadventure/audio-worklet.js at runtime. The
-      // entry module is required — fail the build if the install is broken.
-      const dtlnSrc = path.resolve('node_modules/@workadventure/noise-suppression/dist');
-      const dtlnEntry = path.join(dtlnSrc, 'audio-worklet.js');
+      const dtlnEntry = path.join(dtln[0], 'audio-worklet.js');
       if (!fs.existsSync(dtlnEntry)) {
         throw new Error(
           `[lotus-denoise] DTLN entry missing (${dtlnEntry}) — build aborted. ` +
             'Run `npm ci` to install @workadventure/noise-suppression.',
         );
       }
-      fs.cpSync(dtlnSrc, path.join(denoiseDir, 'workadventure'), { recursive: true });
+      fs.cpSync(dtln[0], path.join(denoiseDir, dtln[1]), { recursive: true });
 
-      // DeepFilterNet 3 (deepfilternet3-noise-filter): the npm package ships only
-      // its ESM (index.esm.js) with the AudioWorklet processor + wasm-bindgen glue
-      // INLINED as a string (loaded via a Blob URL, no CDN for the worklet). The
-      // only runtime CDN fetches are its single-threaded `df_bg.wasm` and the
-      // ONNX `DeepFilterNet3_onnx.tar.gz` model — which we VENDOR locally (under
-      // build/denoise-vendor/deepfilternet/) and serve, overriding the package's
-      // cdnUrl to our self-hosted base. This keeps the feature CDN-free / Tauri-CSP
-      // safe. We copy the ESM (the shim dynamic-imports it, mirroring DTLN) plus
-      // the vendored assets, preserving the package's expected v2/... layout. All
-      // are required — a missing entry means a broken install, so fail the build.
-      const dfnEsm = path.resolve('node_modules/deepfilternet3-noise-filter/dist/index.esm.js');
-      const dfnVendor = path.resolve('build/denoise-vendor/deepfilternet');
-      const dfnAssets = [
-        [dfnEsm, path.join(denoiseDir, 'deepfilternet/index.esm.js')],
-        [
-          path.join(dfnVendor, 'v2/pkg/df_bg.wasm'),
-          path.join(denoiseDir, 'deepfilternet/v2/pkg/df_bg.wasm'),
-        ],
-        [
-          path.join(dfnVendor, 'v2/models/DeepFilterNet3_onnx.tar.gz'),
-          path.join(denoiseDir, 'deepfilternet/v2/models/DeepFilterNet3_onnx.tar.gz'),
-        ],
-      ];
-      const dfnMissing = dfnAssets.filter(([s]) => !fs.existsSync(s)).map(([s]) => s);
+      const dfnMissing = dfn.filter(([s]) => !fs.existsSync(s)).map(([s]) => s);
       if (dfnMissing.length > 0) {
         throw new Error(
-          '[lotus-denoise] DeepFilterNet 3 asset(s) missing — build aborted to avoid ' +
-            'shipping a broken ML feature:\n  ' +
-            dfnMissing.join('\n  ') +
-            '\n(Run `npm ci`; the vendored wasm/model live under build/denoise-vendor/deepfilternet/.)',
+          `[lotus-denoise] DeepFilterNet 3 asset(s) missing — build aborted to avoid shipping a broken ML feature:\n  ${dfnMissing.join('\n  ')}\n(Run \`npm ci\`; the vendored wasm/model live under build/denoise-vendor/deepfilternet/.)`,
         );
       }
-      dfnAssets.forEach(([s, d]) => {
+      dfn.forEach(([s, rel]) => {
+        const d = path.join(denoiseDir, rel);
         fs.mkdirSync(path.dirname(d), { recursive: true });
         fs.copyFileSync(s, d);
       });