diff --git a/javascript-modules/engines/astro-engine/package.json b/javascript-modules/engines/astro-engine/package.json
index 5bd63f3a..7cecb3e6 100644
--- a/javascript-modules/engines/astro-engine/package.json
+++ b/javascript-modules/engines/astro-engine/package.json
@@ -48,4 +48,4 @@
   "engines": {
     "node": ">=14.16"
   }
-}
\ No newline at end of file
+}
diff --git a/javascript-modules/engines/svelte-engine/package.json b/javascript-modules/engines/svelte-engine/package.json
index 3066d610..abb9e57d 100644
--- a/javascript-modules/engines/svelte-engine/package.json
+++ b/javascript-modules/engines/svelte-engine/package.json
@@ -38,4 +38,4 @@
   "engines": {
     "node": ">=14.16"
   }
-}
\ No newline at end of file
+}
diff --git a/javascript-modules/yarn.lock b/javascript-modules/yarn.lock
index 15924955..d6a1ddc5 100644
--- a/javascript-modules/yarn.lock
+++ b/javascript-modules/yarn.lock
@@ -117,7 +117,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@11ty/eleventy@npm:3.0.0, @11ty/eleventy@npm:^3.0.0":
+"@11ty/eleventy@npm:^3.0.0":
   version: 3.0.0
   resolution: "@11ty/eleventy@npm:3.0.0"
   dependencies:
@@ -259,7 +259,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@astrojs/mdx@npm:3.1.7, @astrojs/mdx@npm:^3.1.7":
+"@astrojs/mdx@npm:^3.1.7":
   version: 3.1.7
   resolution: "@astrojs/mdx@npm:3.1.7"
   dependencies:
@@ -622,7 +622,6 @@ __metadata:
     nyc: ^15.1.0
     postcss: ^8.4.29
     postcss-modules: ^6.0.0
-    svelte: 4.2.19
     vite: ^4.2.1
   peerDependencies:
     astro: ^2.0.0 || ^3.0.0 || ^4.0.0
@@ -635,8 +634,6 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@bookshop/browser@workspace:browser"
   dependencies:
-    "@11ty/eleventy": 3.0.0
-    "@astrojs/mdx": 3.1.7
     "@bookshop/builder": 3.11.0-rc.0
     "@bookshop/helpers": 3.11.0-rc.0
     "@codemirror/basic-setup": ^0.18.2
@@ -647,8 +644,6 @@ __metadata:
     "@codemirror/view": ^0.18.19
     "@ltd/j-toml": ^1.30.0
     "@material-design-icons/svg": ^0.2.7
-    "@sveltejs/adapter-static": ^0.0.17
-    astro: 4.15.12
     ava: ^6.1.3
     commander: ^8.1.0
     esbuild: ^0.13.10
@@ -659,7 +654,6 @@ __metadata:
     js-yaml: ^4.1.0
     normalize-path: ^3.0.0
     nyc: ^15.1.0
-    puppeteer: 23.5.1
     svelte: ^4.2.19
   bin:
     bookshop-browser: cli.js
@@ -838,15 +832,11 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@bookshop/svelte-engine@workspace:engines/svelte-engine"
   dependencies:
-    "@11ty/eleventy": 3.0.0
     "@bookshop/builder": 3.11.0-rc.0
     "@bookshop/helpers": 3.11.0-rc.0
-    "@sveltejs/adapter-static": ^0.0.17
-    astro: 4.15.12
     ava: ^6.1.3
     esbuild: ^0.13.10
     esbuild-svelte: ^0.8.2
-    express: ^4.21.0
     nyc: ^15.1.0
     svelte: ^4.2.19
   languageName: unknown
@@ -2464,13 +2454,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@sveltejs/adapter-static@npm:^0.0.17":
-  version: 0.0.17
-  resolution: "@sveltejs/adapter-static@npm:0.0.17"
-  checksum: 30c804e2744451802799e791f5116fecbfb1939645af6749cbb2cf0230f9c49da59fce25eee78532ced9243c9f914fe2f59ac8e40342005b81e2b5aa45725942
-  languageName: node
-  linkType: hard
-
 "@sveltejs/adapter-static@npm:^3.0.5":
   version: 3.0.5
   resolution: "@sveltejs/adapter-static@npm:3.0.5"
@@ -3228,7 +3211,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"astro@npm:4.15.12, astro@npm:^4.15.12":
+"astro@npm:^4.15.12":
   version: 4.15.12
   resolution: "astro@npm:4.15.12"
   dependencies:
@@ -11242,7 +11225,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"puppeteer@npm:23.5.1, puppeteer@npm:^23.5.1":
+"puppeteer@npm:^23.5.1":
   version: 23.5.1
   resolution: "puppeteer@npm:23.5.1"
   dependencies: