example: enable wasm runtime

build.yaml

@@ -0,0 +1,23 @@
+# This is JUST for the example!
+# See https://github.com/dart-lang/build/tree/master/build_web_compilers#configuration
+targets:
+  $default:
+    builders:
+      build_web_compilers|dart2js_archive_extractor:
+        options:
+          filter_outputs: false
+      build_web_compilers|entrypoint:
+        generate_for:
+          - example/**.dart
+        options:
+          compilers:
+            dart2wasm:
+              args:
+                - -O4
+                - --no-strip-wasm
+            dart2js:
+              args:
+                - --stage=dump-info-all
+                - --no-source-maps
+                - --show-package-warnings
+                - -O4

peanut.yaml

@@ -1,13 +1,3 @@
 # Configuration for https://pub.dev/packages/peanut
 directories:
 - example
-
-builder-options:
-  build_web_compilers|entrypoint:
-    dart2js_args:
-    - --stage=dump-info-all
-    - --no-frequency-based-minification
-    - --no-source-maps
-    - -O4
-  build_web_compilers|dart2js_archive_extractor:
-    filter_outputs: false

pubspec.yaml

@@ -13,7 +13,7 @@ dependencies:
 
 dev_dependencies:
   build_runner: ^2.2.1
-  build_web_compilers: ^4.0.8
+  build_web_compilers: ^4.1.0-beta.3
   dart_flutter_team_lints: ^3.0.0
   stream_transform: ^2.0.0
   test: ^1.21.6