diff --git a/preview/astro.config.mjs b/preview/astro.config.mjs
index e566cce1a..b3a1ffb40 100644
--- a/preview/astro.config.mjs
+++ b/preview/astro.config.mjs
@@ -121,6 +121,9 @@ export default defineConfig({
           from: path('./tmp-assets'),
           to: path('./public/preview'),
           label: '@tabler/preview',
+          // Built by the separate "assets" script (its own turbo task), so this
+          // build can start with a half-written tmp-assets from an aborted run.
+          requiredFile: path('./tmp-assets/css/demo.css'),
         },
         {
           // static assets (photos, avatars, tracks, brand svgs...). The real source,
diff --git a/preview/package.json b/preview/package.json
index 38d1240ba..caca35968 100644
--- a/preview/package.json
+++ b/preview/package.json
@@ -15,7 +15,7 @@
     "watch": "concurrently \"pnpm run watch-css\" \"pnpm run watch-js\"",
     "dev": "concurrently -n astro,css,js -c blue,magenta,cyan \"astro dev\" \"pnpm run watch-css\" \"pnpm run watch-js\"",
     "dev-prepare": "pnpm run assets",
-    "build": "pnpm run assets && astro build",
+    "build": "astro build",
     "preview": "astro preview",
     "clean": "shx rm -rf dist public/dist public/preview public/css .astro tmp-assets",
     "import-icons": "pnpm up @tabler/icons@latest && node .build/import-icons.mjs",
diff --git a/turbo.json b/turbo.json
index 1b72d5e7e..10ad78fac 100644
--- a/turbo.json
+++ b/turbo.json
@@ -19,9 +19,23 @@
       ],
       "cache": true
     },
+    "@tabler/preview#assets": {
+      "inputs": [
+        "scss/**",
+        "js/**",
+        ".build/vite.config.mts",
+        "$TURBO_ROOT$/.build/build-css.ts",
+        "$TURBO_ROOT$/.build/vite.config.helper.ts"
+      ],
+      "outputs": [
+        "tmp-assets/**"
+      ],
+      "cache": true
+    },
     "@tabler/preview#build": {
       "dependsOn": [
-        "^build"
+        "^build",
+        "@tabler/preview#assets"
       ],
       "inputs": [
         "$TURBO_DEFAULT$",
@@ -29,14 +43,14 @@
       ],
       "outputs": [
         "dist/**",
-        "demo/**",
-        "tmp-assets/**"
+        "demo/**"
       ],
       "cache": true
     },
     "@tabler/docs#build": {
       "dependsOn": [
-        "^build"
+        "@tabler/core#build",
+        "@tabler/preview#assets"
       ],
       "inputs": [
         "$TURBO_DEFAULT$",