diff --git a/.prettierignore b/.prettierignore
index e6bdb9ec3..36849b71a 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -27,6 +27,7 @@
 /test-packages/release/src/*.d.ts
 /tests/scenarios/**/*.js
 /tests/scenarios/**/*.d.ts
+/tests/scenarios/output/
 /packages/test-setup/**/*.js
 /packages/test-setup/**/*.d.ts
 /packages/addon-shim/**/*.js
@@ -34,6 +35,7 @@
 /packages/addon-dev/**/*.js
 /packages/addon-dev/**/*.d.ts
 /tests/fixtures/
+/tests/addon-template/
 /packages/vite/index.mjs
 /packages/vite/**/*.js
 /packages/vite/**/*.d.ts
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 101244574..0e629a320 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1307,15 +1307,27 @@ importers:
       '@ember/test-helpers':
         specifier: ^2.9.1
         version: 2.9.4(@babel/core@7.23.9)(@glint/environment-ember-loose@1.3.0)(@glint/template@1.3.0)(ember-source@4.6.0)
+      '@embroider/compat':
+        specifier: workspace:*
+        version: link:../../packages/compat
+      '@embroider/core':
+        specifier: workspace:*
+        version: link:../../packages/core
       '@embroider/test-setup':
-        specifier: workspace:^
+        specifier: workspace:*
         version: link:../../packages/test-setup
+      '@embroider/vite':
+        specifier: workspace:*
+        version: link:../../packages/vite
       '@glimmer/component':
         specifier: ^1.1.2
         version: 1.1.2(@babel/core@7.23.9)
       '@glimmer/tracking':
         specifier: ^1.1.2
         version: 1.1.2
+      '@rollup/plugin-babel':
+        specifier: ^5.3.1
+        version: 5.3.1(@babel/core@7.23.9)(rollup@3.29.4)
       babel-eslint:
         specifier: ^10.1.0
         version: 10.1.0(eslint@7.32.0)
@@ -1400,6 +1412,9 @@ importers:
       qunit-dom:
         specifier: ^2.0.0
         version: 2.0.0
+      vite:
+        specifier: ^5.2.8
+        version: 5.2.8
       webpack:
         specifier: ^5.74.0
         version: 5.90.3
@@ -4715,6 +4730,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/aix-ppc64@0.20.2:
+    resolution: {integrity: sha512-D+EBOJHXdNZcLJRBkhENNG8Wji2kgc9AZ9KiPr1JuZjsNtyHzrsfLRrY0tk2H2aoFu6RANO1y1iPPUCDYWkb5g==}
+    engines: {node: '>=12'}
+    cpu: [ppc64]
+    os: [aix]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/android-arm64@0.17.19:
     resolution: {integrity: sha512-KBMWvEZooR7+kzY0BtbTQn0OAYY7CsiydT63pVEaPtVYF0hXbUaOyZog37DKxK7NF3XacBJOpYT4adIJh+avxA==}
     engines: {node: '>=12'}
@@ -4742,6 +4766,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/android-arm64@0.20.2:
+    resolution: {integrity: sha512-mRzjLacRtl/tWU0SvD8lUEwb61yP9cqQo6noDZP/O8VkwafSYwZ4yWy24kan8jE/IMERpYncRt2dw438LP3Xmg==}
+    engines: {node: '>=12'}
+    cpu: [arm64]
+    os: [android]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/android-arm@0.17.19:
     resolution: {integrity: sha512-rIKddzqhmav7MSmoFCmDIb6e2W57geRsM94gV2l38fzhXMwq7hZoClug9USI2pFRGL06f4IOPHHpFNOkWieR8A==}
     engines: {node: '>=12'}
@@ -4769,6 +4802,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/android-arm@0.20.2:
+    resolution: {integrity: sha512-t98Ra6pw2VaDhqNWO2Oph2LXbz/EJcnLmKLGBJwEwXX/JAN83Fym1rU8l0JUWK6HkIbWONCSSatf4sf2NBRx/w==}
+    engines: {node: '>=12'}
+    cpu: [arm]
+    os: [android]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/android-x64@0.17.19:
     resolution: {integrity: sha512-uUTTc4xGNDT7YSArp/zbtmbhO0uEEK9/ETW29Wk1thYUJBz3IVnvgEiEwEa9IeLyvnpKrWK64Utw2bgUmDveww==}
     engines: {node: '>=12'}
@@ -4796,6 +4838,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/android-x64@0.20.2:
+    resolution: {integrity: sha512-btzExgV+/lMGDDa194CcUQm53ncxzeBrWJcncOBxuC6ndBkKxnHdFJn86mCIgTELsooUmwUm9FkhSp5HYu00Rg==}
+    engines: {node: '>=12'}
+    cpu: [x64]
+    os: [android]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/darwin-arm64@0.17.19:
     resolution: {integrity: sha512-80wEoCfF/hFKM6WE1FyBHc9SfUblloAWx6FJkFWTWiCoht9Mc0ARGEM47e67W9rI09YoUxJL68WHfDRYEAvOhg==}
     engines: {node: '>=12'}
@@ -4823,6 +4874,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/darwin-arm64@0.20.2:
+    resolution: {integrity: sha512-4J6IRT+10J3aJH3l1yzEg9y3wkTDgDk7TSDFX+wKFiWjqWp/iCfLIYzGyasx9l0SAFPT1HwSCR+0w/h1ES/MjA==}
+    engines: {node: '>=12'}
+    cpu: [arm64]
+    os: [darwin]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/darwin-x64@0.17.19:
     resolution: {integrity: sha512-IJM4JJsLhRYr9xdtLytPLSH9k/oxR3boaUIYiHkAawtwNOXKE8KoU8tMvryogdcT8AU+Bflmh81Xn6Q0vTZbQw==}
     engines: {node: '>=12'}
@@ -4850,6 +4910,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/darwin-x64@0.20.2:
+    resolution: {integrity: sha512-tBcXp9KNphnNH0dfhv8KYkZhjc+H3XBkF5DKtswJblV7KlT9EI2+jeA8DgBjp908WEuYll6pF+UStUCfEpdysA==}
+    engines: {node: '>=12'}
+    cpu: [x64]
+    os: [darwin]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/freebsd-arm64@0.17.19:
     resolution: {integrity: sha512-pBwbc7DufluUeGdjSU5Si+P3SoMF5DQ/F/UmTSb8HXO80ZEAJmrykPyzo1IfNbAoaqw48YRpv8shwd1NoI0jcQ==}
     engines: {node: '>=12'}
@@ -4877,6 +4946,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/freebsd-arm64@0.20.2:
+    resolution: {integrity: sha512-d3qI41G4SuLiCGCFGUrKsSeTXyWG6yem1KcGZVS+3FYlYhtNoNgYrWcvkOoaqMhwXSMrZRl69ArHsGJ9mYdbbw==}
+    engines: {node: '>=12'}
+    cpu: [arm64]
+    os: [freebsd]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/freebsd-x64@0.17.19:
     resolution: {integrity: sha512-4lu+n8Wk0XlajEhbEffdy2xy53dpR06SlzvhGByyg36qJw6Kpfk7cp45DR/62aPH9mtJRmIyrXAS5UWBrJT6TQ==}
     engines: {node: '>=12'}
@@ -4904,6 +4982,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/freebsd-x64@0.20.2:
+    resolution: {integrity: sha512-d+DipyvHRuqEeM5zDivKV1KuXn9WeRX6vqSqIDgwIfPQtwMP4jaDsQsDncjTDDsExT4lR/91OLjRo8bmC1e+Cw==}
+    engines: {node: '>=12'}
+    cpu: [x64]
+    os: [freebsd]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/linux-arm64@0.17.19:
     resolution: {integrity: sha512-ct1Tg3WGwd3P+oZYqic+YZF4snNl2bsnMKRkb3ozHmnM0dGWuxcPTTntAF6bOP0Sp4x0PjSF+4uHQ1xvxfRKqg==}
     engines: {node: '>=12'}
@@ -4931,6 +5018,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/linux-arm64@0.20.2:
+    resolution: {integrity: sha512-9pb6rBjGvTFNira2FLIWqDk/uaf42sSyLE8j1rnUpuzsODBq7FvpwHYZxQ/It/8b+QOS1RYfqgGFNLRI+qlq2A==}
+    engines: {node: '>=12'}
+    cpu: [arm64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/linux-arm@0.17.19:
     resolution: {integrity: sha512-cdmT3KxjlOQ/gZ2cjfrQOtmhG4HJs6hhvm3mWSRDPtZ/lP5oe8FWceS10JaSJC13GBd4eH/haHnqf7hhGNLerA==}
     engines: {node: '>=12'}
@@ -4958,6 +5054,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/linux-arm@0.20.2:
+    resolution: {integrity: sha512-VhLPeR8HTMPccbuWWcEUD1Az68TqaTYyj6nfE4QByZIQEQVWBB8vup8PpR7y1QHL3CpcF6xd5WVBU/+SBEvGTg==}
+    engines: {node: '>=12'}
+    cpu: [arm]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/linux-ia32@0.17.19:
     resolution: {integrity: sha512-w4IRhSy1VbsNxHRQpeGCHEmibqdTUx61Vc38APcsRbuVgK0OPEnQ0YD39Brymn96mOx48Y2laBQGqgZ0j9w6SQ==}
     engines: {node: '>=12'}
@@ -4985,6 +5090,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/linux-ia32@0.20.2:
+    resolution: {integrity: sha512-o10utieEkNPFDZFQm9CoP7Tvb33UutoJqg3qKf1PWVeeJhJw0Q347PxMvBgVVFgouYLGIhFYG0UGdBumROyiig==}
+    engines: {node: '>=12'}
+    cpu: [ia32]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/linux-loong64@0.17.19:
     resolution: {integrity: sha512-2iAngUbBPMq439a+z//gE+9WBldoMp1s5GWsUSgqHLzLJ9WoZLZhpwWuym0u0u/4XmZ3gpHmzV84PonE+9IIdQ==}
     engines: {node: '>=12'}
@@ -5012,6 +5126,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/linux-loong64@0.20.2:
+    resolution: {integrity: sha512-PR7sp6R/UC4CFVomVINKJ80pMFlfDfMQMYynX7t1tNTeivQ6XdX5r2XovMmha/VjR1YN/HgHWsVcTRIMkymrgQ==}
+    engines: {node: '>=12'}
+    cpu: [loong64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/linux-mips64el@0.17.19:
     resolution: {integrity: sha512-LKJltc4LVdMKHsrFe4MGNPp0hqDFA1Wpt3jE1gEyM3nKUvOiO//9PheZZHfYRfYl6AwdTH4aTcXSqBerX0ml4A==}
     engines: {node: '>=12'}
@@ -5039,6 +5162,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/linux-mips64el@0.20.2:
+    resolution: {integrity: sha512-4BlTqeutE/KnOiTG5Y6Sb/Hw6hsBOZapOVF6njAESHInhlQAghVVZL1ZpIctBOoTFbQyGW+LsVYZ8lSSB3wkjA==}
+    engines: {node: '>=12'}
+    cpu: [mips64el]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/linux-ppc64@0.17.19:
     resolution: {integrity: sha512-/c/DGybs95WXNS8y3Ti/ytqETiW7EU44MEKuCAcpPto3YjQbyK3IQVKfF6nbghD7EcLUGl0NbiL5Rt5DMhn5tg==}
     engines: {node: '>=12'}
@@ -5066,6 +5198,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/linux-ppc64@0.20.2:
+    resolution: {integrity: sha512-rD3KsaDprDcfajSKdn25ooz5J5/fWBylaaXkuotBDGnMnDP1Uv5DLAN/45qfnf3JDYyJv/ytGHQaziHUdyzaAg==}
+    engines: {node: '>=12'}
+    cpu: [ppc64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/linux-riscv64@0.17.19:
     resolution: {integrity: sha512-FC3nUAWhvFoutlhAkgHf8f5HwFWUL6bYdvLc/TTuxKlvLi3+pPzdZiFKSWz/PF30TB1K19SuCxDTI5KcqASJqA==}
     engines: {node: '>=12'}
@@ -5093,6 +5234,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/linux-riscv64@0.20.2:
+    resolution: {integrity: sha512-snwmBKacKmwTMmhLlz/3aH1Q9T8v45bKYGE3j26TsaOVtjIag4wLfWSiZykXzXuE1kbCE+zJRmwp+ZbIHinnVg==}
+    engines: {node: '>=12'}
+    cpu: [riscv64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/linux-s390x@0.17.19:
     resolution: {integrity: sha512-IbFsFbxMWLuKEbH+7sTkKzL6NJmG2vRyy6K7JJo55w+8xDk7RElYn6xvXtDW8HCfoKBFK69f3pgBJSUSQPr+4Q==}
     engines: {node: '>=12'}
@@ -5120,6 +5270,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/linux-s390x@0.20.2:
+    resolution: {integrity: sha512-wcWISOobRWNm3cezm5HOZcYz1sKoHLd8VL1dl309DiixxVFoFe/o8HnwuIwn6sXre88Nwj+VwZUvJf4AFxkyrQ==}
+    engines: {node: '>=12'}
+    cpu: [s390x]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/linux-x64@0.17.19:
     resolution: {integrity: sha512-68ngA9lg2H6zkZcyp22tsVt38mlhWde8l3eJLWkyLrp4HwMUr3c1s/M2t7+kHIhvMjglIBrFpncX1SzMckomGw==}
     engines: {node: '>=12'}
@@ -5147,6 +5306,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/linux-x64@0.20.2:
+    resolution: {integrity: sha512-1MdwI6OOTsfQfek8sLwgyjOXAu+wKhLEoaOLTjbijk6E2WONYpH9ZU2mNtR+lZ2B4uwr+usqGuVfFT9tMtGvGw==}
+    engines: {node: '>=12'}
+    cpu: [x64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/netbsd-x64@0.17.19:
     resolution: {integrity: sha512-CwFq42rXCR8TYIjIfpXCbRX0rp1jo6cPIUPSaWwzbVI4aOfX96OXY8M6KNmtPcg7QjYeDmN+DD0Wp3LaBOLf4Q==}
     engines: {node: '>=12'}
@@ -5174,6 +5342,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/netbsd-x64@0.20.2:
+    resolution: {integrity: sha512-K8/DhBxcVQkzYc43yJXDSyjlFeHQJBiowJ0uVL6Tor3jGQfSGHNNJcWxNbOI8v5k82prYqzPuwkzHt3J1T1iZQ==}
+    engines: {node: '>=12'}
+    cpu: [x64]
+    os: [netbsd]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/openbsd-x64@0.17.19:
     resolution: {integrity: sha512-cnq5brJYrSZ2CF6c35eCmviIN3k3RczmHz8eYaVlNasVqsNY+JKohZU5MKmaOI+KkllCdzOKKdPs762VCPC20g==}
     engines: {node: '>=12'}
@@ -5201,6 +5378,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/openbsd-x64@0.20.2:
+    resolution: {integrity: sha512-eMpKlV0SThJmmJgiVyN9jTPJ2VBPquf6Kt/nAoo6DgHAoN57K15ZghiHaMvqjCye/uU4X5u3YSMgVBI1h3vKrQ==}
+    engines: {node: '>=12'}
+    cpu: [x64]
+    os: [openbsd]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/sunos-x64@0.17.19:
     resolution: {integrity: sha512-vCRT7yP3zX+bKWFeP/zdS6SqdWB8OIpaRq/mbXQxTGHnIxspRtigpkUcDMlSCOejlHowLqII7K2JKevwyRP2rg==}
     engines: {node: '>=12'}
@@ -5228,6 +5414,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/sunos-x64@0.20.2:
+    resolution: {integrity: sha512-2UyFtRC6cXLyejf/YEld4Hajo7UHILetzE1vsRcGL3earZEW77JxrFjH4Ez2qaTiEfMgAXxfAZCm1fvM/G/o8w==}
+    engines: {node: '>=12'}
+    cpu: [x64]
+    os: [sunos]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/win32-arm64@0.17.19:
     resolution: {integrity: sha512-yYx+8jwowUstVdorcMdNlzklLYhPxjniHWFKgRqH7IFlUEa0Umu3KuYplf1HUZZ422e3NU9F4LGb+4O0Kdcaag==}
     engines: {node: '>=12'}
@@ -5255,6 +5450,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/win32-arm64@0.20.2:
+    resolution: {integrity: sha512-GRibxoawM9ZCnDxnP3usoUDO9vUkpAxIIZ6GQI+IlVmr5kP3zUq+l17xELTHMWTWzjxa2guPNyrpq1GWmPvcGQ==}
+    engines: {node: '>=12'}
+    cpu: [arm64]
+    os: [win32]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/win32-ia32@0.17.19:
     resolution: {integrity: sha512-eggDKanJszUtCdlVs0RB+h35wNlb5v4TWEkq4vZcmVt5u/HiDZrTXe2bWFQUez3RgNHwx/x4sk5++4NSSicKkw==}
     engines: {node: '>=12'}
@@ -5282,6 +5486,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/win32-ia32@0.20.2:
+    resolution: {integrity: sha512-HfLOfn9YWmkSKRQqovpnITazdtquEW8/SoHW7pWpuEeguaZI4QnCRW6b+oZTztdBnZOS2hqJ6im/D5cPzBTTlQ==}
+    engines: {node: '>=12'}
+    cpu: [ia32]
+    os: [win32]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@esbuild/win32-x64@0.17.19:
     resolution: {integrity: sha512-lAhycmKnVOuRYNtRtatQR1LPQf2oYCkRGkSFnseDAKPl8lu5SOsK/e1sXe5a0Pc5kHIHe6P2I/ilntNv2xf3cA==}
     engines: {node: '>=12'}
@@ -5309,6 +5522,15 @@ packages:
     dev: true
     optional: true
 
+  /@esbuild/win32-x64@0.20.2:
+    resolution: {integrity: sha512-N49X4lJX27+l9jbLKSqZ6bKNjzQvHaT8IIFUy+YIqmXQdjYCToGWwOItDrfby14c78aDd5NHQl29xingXfCdLQ==}
+    engines: {node: '>=12'}
+    cpu: [x64]
+    os: [win32]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@eslint-community/eslint-utils@4.4.0(eslint@7.32.0):
     resolution: {integrity: sha512-1/sA4dwrzBAyeUoQ6oxahHKmrZvsnLCg4RfxW3ZFGGmQkSNQPFNLV9CUEFQP1x9EYXHTo5p6xdhZM1Ne9p/AfA==}
     engines: {node: ^12.22.0 || ^14.17.0 || >=16.0.0}
@@ -7224,6 +7446,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-android-arm-eabi@4.14.0:
+    resolution: {integrity: sha512-jwXtxYbRt1V+CdQSy6Z+uZti7JF5irRKF8hlKfEnF/xJpcNGuuiZMBvuoYM+x9sr9iWGnzrlM0+9hvQ1kgkf1w==}
+    cpu: [arm]
+    os: [android]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-android-arm64@4.12.0:
     resolution: {integrity: sha512-OBqcX2BMe6nvjQ0Nyp7cC90cnumt8PXmO7Dp3gfAju/6YwG0Tj74z1vKrfRz7qAv23nBcYM8BCbhrsWqO7PzQQ==}
     cpu: [arm64]
@@ -7232,6 +7462,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-android-arm64@4.14.0:
+    resolution: {integrity: sha512-fI9nduZhCccjzlsA/OuAwtFGWocxA4gqXGTLvOyiF8d+8o0fZUeSztixkYjcGq1fGZY3Tkq4yRvHPFxU+jdZ9Q==}
+    cpu: [arm64]
+    os: [android]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-darwin-arm64@4.12.0:
     resolution: {integrity: sha512-X64tZd8dRE/QTrBIEs63kaOBG0b5GVEd3ccoLtyf6IdXtHdh8h+I56C2yC3PtC9Ucnv0CpNFJLqKFVgCYe0lOQ==}
     cpu: [arm64]
@@ -7240,6 +7478,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-darwin-arm64@4.14.0:
+    resolution: {integrity: sha512-BcnSPRM76/cD2gQC+rQNGBN6GStBs2pl/FpweW8JYuz5J/IEa0Fr4AtrPv766DB/6b2MZ/AfSIOSGw3nEIP8SA==}
+    cpu: [arm64]
+    os: [darwin]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-darwin-x64@4.12.0:
     resolution: {integrity: sha512-cc71KUZoVbUJmGP2cOuiZ9HSOP14AzBAThn3OU+9LcA1+IUqswJyR1cAJj3Mg55HbjZP6OLAIscbQsQLrpgTOg==}
     cpu: [x64]
@@ -7248,6 +7494,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-darwin-x64@4.14.0:
+    resolution: {integrity: sha512-LDyFB9GRolGN7XI6955aFeI3wCdCUszFWumWU0deHA8VpR3nWRrjG6GtGjBrQxQKFevnUTHKCfPR4IvrW3kCgQ==}
+    cpu: [x64]
+    os: [darwin]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-linux-arm-gnueabihf@4.12.0:
     resolution: {integrity: sha512-a6w/Y3hyyO6GlpKL2xJ4IOh/7d+APaqLYdMf86xnczU3nurFTaVN9s9jOXQg97BE4nYm/7Ga51rjec5nfRdrvA==}
     cpu: [arm]
@@ -7256,6 +7510,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-linux-arm-gnueabihf@4.14.0:
+    resolution: {integrity: sha512-ygrGVhQP47mRh0AAD0zl6QqCbNsf0eTo+vgwkY6LunBcg0f2Jv365GXlDUECIyoXp1kKwL5WW6rsO429DBY/bA==}
+    cpu: [arm]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-linux-arm64-gnu@4.12.0:
     resolution: {integrity: sha512-0fZBq27b+D7Ar5CQMofVN8sggOVhEtzFUwOwPppQt0k+VR+7UHMZZY4y+64WJ06XOhBTKXtQB/Sv0NwQMXyNAA==}
     cpu: [arm64]
@@ -7264,6 +7526,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-linux-arm64-gnu@4.14.0:
+    resolution: {integrity: sha512-x+uJ6MAYRlHGe9wi4HQjxpaKHPM3d3JjqqCkeC5gpnnI6OWovLdXTpfa8trjxPLnWKyBsSi5kne+146GAxFt4A==}
+    cpu: [arm64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-linux-arm64-musl@4.12.0:
     resolution: {integrity: sha512-eTvzUS3hhhlgeAv6bfigekzWZjaEX9xP9HhxB0Dvrdbkk5w/b+1Sxct2ZuDxNJKzsRStSq1EaEkVSEe7A7ipgQ==}
     cpu: [arm64]
@@ -7272,6 +7542,22 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-linux-arm64-musl@4.14.0:
+    resolution: {integrity: sha512-nrRw8ZTQKg6+Lttwqo6a2VxR9tOroa2m91XbdQ2sUUzHoedXlsyvY1fN4xWdqz8PKmf4orDwejxXHjh7YBGUCA==}
+    cpu: [arm64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-powerpc64le-gnu@4.14.0:
+    resolution: {integrity: sha512-xV0d5jDb4aFu84XKr+lcUJ9y3qpIWhttO3Qev97z8DKLXR62LC3cXT/bMZXrjLF9X+P5oSmJTzAhqwUbY96PnA==}
+    cpu: [ppc64le]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-linux-riscv64-gnu@4.12.0:
     resolution: {integrity: sha512-ix+qAB9qmrCRiaO71VFfY8rkiAZJL8zQRXveS27HS+pKdjwUfEhqo2+YF2oI+H/22Xsiski+qqwIBxVewLK7sw==}
     cpu: [riscv64]
@@ -7280,6 +7566,22 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-linux-riscv64-gnu@4.14.0:
+    resolution: {integrity: sha512-SDDhBQwZX6LPRoPYjAZWyL27LbcBo7WdBFWJi5PI9RPCzU8ijzkQn7tt8NXiXRiFMJCVpkuMkBf4OxSxVMizAw==}
+    cpu: [riscv64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
+  /@rollup/rollup-linux-s390x-gnu@4.14.0:
+    resolution: {integrity: sha512-RxB/qez8zIDshNJDufYlTT0ZTVut5eCpAZ3bdXDU9yTxBzui3KhbGjROK2OYTTor7alM7XBhssgoO3CZ0XD3qA==}
+    cpu: [s390x]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-linux-x64-gnu@4.12.0:
     resolution: {integrity: sha512-TenQhZVOtw/3qKOPa7d+QgkeM6xY0LtwzR8OplmyL5LrgTWIXpTQg2Q2ycBf8jm+SFW2Wt/DTn1gf7nFp3ssVA==}
     cpu: [x64]
@@ -7288,6 +7590,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-linux-x64-gnu@4.14.0:
+    resolution: {integrity: sha512-C6y6z2eCNCfhZxT9u+jAM2Fup89ZjiG5pIzZIDycs1IwESviLxwkQcFRGLjnDrP+PT+v5i4YFvlcfAs+LnreXg==}
+    cpu: [x64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-linux-x64-musl@4.12.0:
     resolution: {integrity: sha512-LfFdRhNnW0zdMvdCb5FNuWlls2WbbSridJvxOvYWgSBOYZtgBfW9UGNJG//rwMqTX1xQE9BAodvMH9tAusKDUw==}
     cpu: [x64]
@@ -7296,6 +7606,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-linux-x64-musl@4.14.0:
+    resolution: {integrity: sha512-i0QwbHYfnOMYsBEyjxcwGu5SMIi9sImDVjDg087hpzXqhBSosxkE7gyIYFHgfFl4mr7RrXksIBZ4DoLoP4FhJg==}
+    cpu: [x64]
+    os: [linux]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-win32-arm64-msvc@4.12.0:
     resolution: {integrity: sha512-JPDxovheWNp6d7AHCgsUlkuCKvtu3RB55iNEkaQcf0ttsDU/JZF+iQnYcQJSk/7PtT4mjjVG8N1kpwnI9SLYaw==}
     cpu: [arm64]
@@ -7304,6 +7622,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-win32-arm64-msvc@4.14.0:
+    resolution: {integrity: sha512-Fq52EYb0riNHLBTAcL0cun+rRwyZ10S9vKzhGKKgeD+XbwunszSY0rVMco5KbOsTlwovP2rTOkiII/fQ4ih/zQ==}
+    cpu: [arm64]
+    os: [win32]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-win32-ia32-msvc@4.12.0:
     resolution: {integrity: sha512-fjtuvMWRGJn1oZacG8IPnzIV6GF2/XG+h71FKn76OYFqySXInJtseAqdprVTDTyqPxQOG9Exak5/E9Z3+EJ8ZA==}
     cpu: [ia32]
@@ -7312,6 +7638,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-win32-ia32-msvc@4.14.0:
+    resolution: {integrity: sha512-e/PBHxPdJ00O9p5Ui43+vixSgVf4NlLsmV6QneGERJ3lnjIua/kim6PRFe3iDueT1rQcgSkYP8ZBBXa/h4iPvw==}
+    cpu: [ia32]
+    os: [win32]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@rollup/rollup-win32-x64-msvc@4.12.0:
     resolution: {integrity: sha512-ZYmr5mS2wd4Dew/JjT0Fqi2NPB/ZhZ2VvPp7SmvPZb4Y1CG/LRcS6tcRo2cYU7zLK5A7cdbhWnnWmUjoI4qapg==}
     cpu: [x64]
@@ -7320,6 +7654,14 @@ packages:
     dev: true
     optional: true
 
+  /@rollup/rollup-win32-x64-msvc@4.14.0:
+    resolution: {integrity: sha512-aGg7iToJjdklmxlUlJh/PaPNa4PmqHfyRMLunbL3eaMO0gp656+q1zOKkpJ/CVe9CryJv6tAN1HDoR8cNGzkag==}
+    cpu: [x64]
+    os: [win32]
+    requiresBuild: true
+    dev: true
+    optional: true
+
   /@simple-dom/document@1.4.0:
     resolution: {integrity: sha512-/RUeVH4kuD3rzo5/91+h4Z1meLSLP66eXqpVAw/4aZmYozkeqUkMprq0znL4psX/adEed5cBgiNJcfMz/eKZLg==}
     dependencies:
@@ -15287,6 +15629,37 @@ packages:
       '@esbuild/win32-x64': 0.19.12
     dev: true
 
+  /esbuild@0.20.2:
+    resolution: {integrity: sha512-WdOOppmUNU+IbZ0PaDiTst80zjnrOkyJNHoKupIcVyU8Lvla3Ugx94VzkQ32Ijqd7UhHJy75gNWDMUekcrSJ6g==}
+    engines: {node: '>=12'}
+    hasBin: true
+    requiresBuild: true
+    optionalDependencies:
+      '@esbuild/aix-ppc64': 0.20.2
+      '@esbuild/android-arm': 0.20.2
+      '@esbuild/android-arm64': 0.20.2
+      '@esbuild/android-x64': 0.20.2
+      '@esbuild/darwin-arm64': 0.20.2
+      '@esbuild/darwin-x64': 0.20.2
+      '@esbuild/freebsd-arm64': 0.20.2
+      '@esbuild/freebsd-x64': 0.20.2
+      '@esbuild/linux-arm': 0.20.2
+      '@esbuild/linux-arm64': 0.20.2
+      '@esbuild/linux-ia32': 0.20.2
+      '@esbuild/linux-loong64': 0.20.2
+      '@esbuild/linux-mips64el': 0.20.2
+      '@esbuild/linux-ppc64': 0.20.2
+      '@esbuild/linux-riscv64': 0.20.2
+      '@esbuild/linux-s390x': 0.20.2
+      '@esbuild/linux-x64': 0.20.2
+      '@esbuild/netbsd-x64': 0.20.2
+      '@esbuild/openbsd-x64': 0.20.2
+      '@esbuild/sunos-x64': 0.20.2
+      '@esbuild/win32-arm64': 0.20.2
+      '@esbuild/win32-ia32': 0.20.2
+      '@esbuild/win32-x64': 0.20.2
+    dev: true
+
   /escalade@3.1.2:
     resolution: {integrity: sha512-ErCHMCae19vR8vQGe50xIsVomy19rg6gFu3+r3jkEO46suLMWBksvVyoGgQV+jOfl84ZSOSlmv6Gxa89PmTGmA==}
     engines: {node: '>=6'}
@@ -20824,6 +21197,15 @@ packages:
       picocolors: 1.0.0
       source-map-js: 1.0.2
 
+  /postcss@8.4.38:
+    resolution: {integrity: sha512-Wglpdk03BSfXkHoQa3b/oulrotAkwrlLDRSOb9D0bN86FdRyE9lppSp33aHNPgBa0JKCoB+drFLZkQoRRYae5A==}
+    engines: {node: ^10 || ^12 || >=14}
+    dependencies:
+      nanoid: 3.3.7
+      picocolors: 1.0.0
+      source-map-js: 1.2.0
+    dev: true
+
   /prelude-ls@1.1.2:
     resolution: {integrity: sha512-ESF23V4SKG6lVSGZgYNpbsiaAkdab6ZgOxe52p7+Kid3W3u3bxR4Vfd/o21dmN7jSt0IwgZ4v5MUd26FEtXE9w==}
     engines: {node: '>= 0.8.0'}
@@ -21697,6 +22079,31 @@ packages:
       fsevents: 2.3.3
     dev: true
 
+  /rollup@4.14.0:
+    resolution: {integrity: sha512-Qe7w62TyawbDzB4yt32R0+AbIo6m1/sqO7UPzFS8Z/ksL5mrfhA0v4CavfdmFav3D+ub4QeAgsGEe84DoWe/nQ==}
+    engines: {node: '>=18.0.0', npm: '>=8.0.0'}
+    hasBin: true
+    dependencies:
+      '@types/estree': 1.0.5
+    optionalDependencies:
+      '@rollup/rollup-android-arm-eabi': 4.14.0
+      '@rollup/rollup-android-arm64': 4.14.0
+      '@rollup/rollup-darwin-arm64': 4.14.0
+      '@rollup/rollup-darwin-x64': 4.14.0
+      '@rollup/rollup-linux-arm-gnueabihf': 4.14.0
+      '@rollup/rollup-linux-arm64-gnu': 4.14.0
+      '@rollup/rollup-linux-arm64-musl': 4.14.0
+      '@rollup/rollup-linux-powerpc64le-gnu': 4.14.0
+      '@rollup/rollup-linux-riscv64-gnu': 4.14.0
+      '@rollup/rollup-linux-s390x-gnu': 4.14.0
+      '@rollup/rollup-linux-x64-gnu': 4.14.0
+      '@rollup/rollup-linux-x64-musl': 4.14.0
+      '@rollup/rollup-win32-arm64-msvc': 4.14.0
+      '@rollup/rollup-win32-ia32-msvc': 4.14.0
+      '@rollup/rollup-win32-x64-msvc': 4.14.0
+      fsevents: 2.3.3
+    dev: true
+
   /route-recognizer@0.3.4:
     resolution: {integrity: sha512-2+MhsfPhvauN1O8KaXpXAOfR/fwe8dnUXVM+xw7yt40lJRfPVQxV6yryZm0cgRvAj5fMF/mdRZbL2ptwbs5i2g==}
     dev: true
@@ -22212,6 +22619,11 @@ packages:
     resolution: {integrity: sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==}
     engines: {node: '>=0.10.0'}
 
+  /source-map-js@1.2.0:
+    resolution: {integrity: sha512-itJW8lvSA0TXEphiRoawsCksnlf8SyvmFzIhltqAHluXd88pkCd+cXJVHTDwdCr0IzwptSm035IHQktUu1QUMg==}
+    engines: {node: '>=0.10.0'}
+    dev: true
+
   /source-map-resolve@0.5.3:
     resolution: {integrity: sha512-Htz+RnsXWk5+P2slx5Jh3Q66vhQj1Cllm0zvnaY98+NFx+Dv2CF/f5O/t8x+KaNdrdIAsruNzoh/KpialbqAnw==}
     deprecated: See https://github.com/lydell/source-map-resolve#deprecated
@@ -23801,6 +24213,41 @@ packages:
       fsevents: 2.3.3
     dev: true
 
+  /vite@5.2.8:
+    resolution: {integrity: sha512-OyZR+c1CE8yeHw5V5t59aXsUPPVTHMDjEZz8MgguLL/Q7NblxhZUlTu9xSPqlsUO/y+X7dlU05jdhvyycD55DA==}
+    engines: {node: ^18.0.0 || >=20.0.0}
+    hasBin: true
+    peerDependencies:
+      '@types/node': ^18.0.0 || >=20.0.0
+      less: '*'
+      lightningcss: ^1.21.0
+      sass: '*'
+      stylus: '*'
+      sugarss: '*'
+      terser: ^5.4.0
+    peerDependenciesMeta:
+      '@types/node':
+        optional: true
+      less:
+        optional: true
+      lightningcss:
+        optional: true
+      sass:
+        optional: true
+      stylus:
+        optional: true
+      sugarss:
+        optional: true
+      terser:
+        optional: true
+    dependencies:
+      esbuild: 0.20.2
+      postcss: 8.4.38
+      rollup: 4.14.0
+    optionalDependencies:
+      fsevents: 2.3.3
+    dev: true
+
   /w3c-hr-time@1.0.2:
     resolution: {integrity: sha512-z8P5DvDNjKDoFIHK7q8r8lackT6l+jo/Ye3HOle7l9nICP9lf1Ci25fy9vHd0JOWewkIFzXIEig3TdKT7JQ5fQ==}
     deprecated: Use your platform's native performance.now() and performance.timeOrigin.
diff --git a/tests/addon-template/.eslintrc.js b/tests/addon-template/.eslintrc.js
index 8976c3259..8bab97d5a 100644
--- a/tests/addon-template/.eslintrc.js
+++ b/tests/addon-template/.eslintrc.js
@@ -14,7 +14,6 @@ module.exports = {
   extends: [
     'eslint:recommended',
     'plugin:ember/recommended',
-    'plugin:prettier/recommended',
   ],
   env: {
     browser: true,
diff --git a/tests/addon-template/.prettierignore b/tests/addon-template/.prettierignore
deleted file mode 100644
index 4178fd571..000000000
--- a/tests/addon-template/.prettierignore
+++ /dev/null
@@ -1,25 +0,0 @@
-# unconventional js
-/blueprints/*/files/
-/vendor/
-
-# compiled output
-/dist/
-/tmp/
-
-# dependencies
-/bower_components/
-/node_modules/
-
-# misc
-/coverage/
-!.*
-.eslintcache
-.lint-todo/
-
-# ember-try
-/.node_modules.ember-try/
-/bower.json.ember-try
-/npm-shrinkwrap.json.ember-try
-/package.json.ember-try
-/package-lock.json.ember-try
-/yarn.lock.ember-try
diff --git a/tests/addon-template/babel.config.cjs b/tests/addon-template/babel.config.cjs
new file mode 100644
index 000000000..28a6d38b1
--- /dev/null
+++ b/tests/addon-template/babel.config.cjs
@@ -0,0 +1,19 @@
+// eslint-disable-next-line n/no-missing-require
+
+let config;
+
+// TODO - remove this once we have the better solution for injecting stage1 babel config into a real config file
+// this is needed because there are things (like ember-composible-helpers) that are now finding our babel config during
+// their stage1 build and historically they will never (99% of the time) have found any babel config.
+// we might need to keep something like this so that prebuild will never apply babel configs during stage1 i.e. a util
+// function that wraps your whole babel config
+if (
+  process.env.EMBROIDER_PREBUILD ||
+  process.env.EMBROIDER_TEST_SETUP_FORCE === "classic"
+) {
+  config = {};
+} else {
+  config = require("./node_modules/.embroider/rewritten-app/_babel_config_");
+}
+
+module.exports = config;
diff --git a/tests/addon-template/package.json b/tests/addon-template/package.json
index 9397efc2e..24fd0436e 100644
--- a/tests/addon-template/package.json
+++ b/tests/addon-template/package.json
@@ -22,8 +22,8 @@
     "lint:js": "eslint . --cache",
     "lint:js:fix": "eslint . --fix",
     "start": "ember serve",
-    "test": "ember test",
-    "test:ember": "ember test",
+    "test": "vite build --mode test && ember test --path dist",
+    "test:ember": "vite build --mode test && ember test --path dist",
     "test:ember-compatibility": "ember try:each"
   },
   "dependencies": {
@@ -35,9 +35,13 @@
     "@ember/optional-features": "^2.0.0",
     "@ember/string": "^3.1.1",
     "@ember/test-helpers": "^2.9.1",
-    "@embroider/test-setup": "workspace:^",
+    "@embroider/compat": "workspace:*",
+    "@embroider/core": "workspace:*",
+    "@embroider/test-setup": "workspace:*",
+    "@embroider/vite": "workspace:*",
     "@glimmer/component": "^1.1.2",
     "@glimmer/tracking": "^1.1.2",
+    "@rollup/plugin-babel": "^5.3.1",
     "babel-eslint": "^10.1.0",
     "broccoli-asset-rev": "^3.0.0",
     "ember-auto-import": "^2.4.2",
@@ -66,6 +70,7 @@
     "prettier": "^2.7.1",
     "qunit": "^2.19.1",
     "qunit-dom": "^2.0.0",
+    "vite": "^5.2.8",
     "webpack": "^5.74.0"
   },
   "engines": {
diff --git a/tests/addon-template/vite.config.mjs b/tests/addon-template/vite.config.mjs
new file mode 100644
index 000000000..376422f0a
--- /dev/null
+++ b/tests/addon-template/vite.config.mjs
@@ -0,0 +1,61 @@
+import { defineConfig } from "vite";
+import {
+  resolver,
+  hbs,
+  scripts,
+  templateTag,
+  optimizeDeps,
+  compatPrebuild,
+} from "@embroider/vite";
+import { resolve } from "path";
+import { babel } from "@rollup/plugin-babel";
+
+const root = "node_modules/.embroider/rewritten-app";
+
+export default defineConfig(({ mode }) => {
+  return {
+    root,
+    // esbuild in vite does not support decorators
+    esbuild: false,
+    cacheDir: resolve("node_modules", ".vite"),
+    plugins: [
+      hbs(),
+      templateTag(),
+      scripts(),
+      resolver(),
+      compatPrebuild(),
+
+      babel({
+        babelHelpers: "runtime",
+
+        // this needs .hbs because our hbs() plugin above converts them to
+        // javascript but the javascript still also needs babel, but we don't want
+        // to rename them because vite isn't great about knowing how to hot-reload
+        // them if we resolve them to made-up names.
+        extensions: [".gjs", ".js", ".hbs", ".ts", ".gts"],
+      }),
+    ],
+    optimizeDeps: optimizeDeps(),
+    server: {
+      port: 4200,
+      watch: {
+        ignored: ["!**/node_modules/.embroider/rewritten-app/**"],
+      },
+    },
+    build: {
+      outDir: resolve(process.cwd(), "dist"),
+      rollupOptions: {
+        input: {
+          main: resolve(root, "index.html"),
+          ...(shouldBuildTests(mode)
+            ? { tests: resolve(root, "tests/index.html") }
+            : undefined),
+        },
+      },
+    },
+  };
+});
+
+function shouldBuildTests(mode) {
+  return mode !== "production" || process.env.FORCE_BUILD_TESTS;
+}
diff --git a/tests/fixtures/macro-sample-addon/ember-cli-build.js b/tests/fixtures/macro-sample-addon/ember-cli-build.js
index 1f5e2539d..34c584bf3 100644
--- a/tests/fixtures/macro-sample-addon/ember-cli-build.js
+++ b/tests/fixtures/macro-sample-addon/ember-cli-build.js
@@ -1,6 +1,7 @@
 'use strict';
 
 const EmberAddon = require('ember-cli/lib/broccoli/ember-addon');
+const { maybeEmbroider } = require('@embroider/test-setup');
 
 module.exports = function(defaults) {
   let app = new EmberAddon(defaults, {
@@ -14,9 +15,11 @@ module.exports = function(defaults) {
     behave. You most likely want to be modifying `./index.js` or app's build file
   */
 
-  if (process.env.CLASSIC) {
-    return app.toTree();
-  }
-  const Webpack = require('@embroider/webpack').Webpack;
-  return require('@embroider/compat').compatBuild(app, Webpack);
+  return maybeEmbroider(app, {
+    skipBabel: [
+      {
+        package: 'qunit',
+      },
+    ],
+  });
 };
diff --git a/tests/fixtures/macro-sample-addon/tests/integration/helpers/reflect-updated-config-test.js b/tests/fixtures/macro-sample-addon/tests/integration/helpers/reflect-updated-config-test.js
index dbc4f94f7..84fd46c54 100644
--- a/tests/fixtures/macro-sample-addon/tests/integration/helpers/reflect-updated-config-test.js
+++ b/tests/fixtures/macro-sample-addon/tests/integration/helpers/reflect-updated-config-test.js
@@ -1,17 +1,18 @@
 import { module, test } from 'qunit';
 import { setupRenderingTest } from 'ember-qunit';
 import { render } from '@ember/test-helpers';
-import hbs from 'htmlbars-inline-precompile';
-import { helper } from '@ember/component/helper';
+import { precompileTemplate } from '@ember/template-compilation';
 
 module('Integration | Helper | reflect-updated-config | contentFor | config-module', function (hooks) {
   setupRenderingTest(hooks);
 
   test('it accesses our config', async function (assert) {
     assert.expect(1);
-    this.owner.register('helper:my-assertion', helper(function ([value]) {
-      assert.equal(value, 'hello new world');
+    function myAssertion(value) {
+      assert.deepEqual(value, 'hello new world');
+    }
+    await render(precompileTemplate(`{{myAssertion (reflect-updated-config) }}`, {
+      scope: () => ({ myAssertion })
     }));
-    await render(hbs`{{my-assertion (reflect-updated-config) }}`);
   });
-});
+});
\ No newline at end of file