diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9cd8329..b0be771 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -9,6 +9,8 @@ jobs:
       COMMUNITY_EXTENSION_NAME: ${{ steps.parse.outputs.COMMUNITY_EXTENSION_NAME }}
       COMMUNITY_EXTENSION_GITHUB: ${{ steps.parse.outputs.COMMUNITY_EXTENSION_GITHUB }}
       COMMUNITY_EXTENSION_REF: ${{ steps.parse.outputs.COMMUNITY_EXTENSION_REF }}
+      COMMUNITY_EXTENSION_DEPLOY: ${{ steps.parse.outputs.COMMUNITY_EXTENSION_DEPLOY }}
+      COMMUNITY_EXTENSION_EXCLUDE_PLATFORMS: ${{ steps.parse.outputs.COMMUNITY_EXTENSION_EXCLUDE_PLATFORMS }}
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
@@ -38,8 +40,8 @@ jobs:
     if: ${{ needs.prepare.outputs.COMMUNITY_EXTENSION_NAME != '' }}
     with:
       duckdb_version: v1.0.0
+      exclude_archs: ${{ needs.prepare.outputs.COMMUNITY_EXTENSION_EXCLUDE_PLATFORMS }}
       extension_name: ${{ needs.prepare.outputs.COMMUNITY_EXTENSION_NAME }}
-      exclude_archs: 'wasm_mvp;wasm_eh;wasm_threads;windows_amd64_rtools'
       repository: ${{ needs.prepare.outputs.COMMUNITY_EXTENSION_GITHUB }}
       ref: ${{ needs.prepare.outputs.COMMUNITY_EXTENSION_REF }}
 
@@ -48,12 +50,13 @@ jobs:
       - prepare
       - build
     uses: ./.github/workflows/_extension_deploy.yml
+    if: ${{ needs.prepare.outputs.COMMUNITY_EXTENSION_DEPLOY != '' }}
     secrets: inherit
     with:
       deploy_latest: true
       duckdb_version: v1.0.0
+      exclude_archs: ${{ needs.prepare.outputs.COMMUNITY_EXTENSION_EXCLUDE_PLATFORMS }}
       extension_name: ${{ needs.prepare.outputs.COMMUNITY_EXTENSION_NAME }}
-      exclude_archs: 'wasm_mvp;wasm_eh;wasm_threads;windows_amd64_rtools'
       repository: ${{ needs.prepare.outputs.COMMUNITY_EXTENSION_GITHUB }}
       ref: ${{ needs.prepare.outputs.COMMUNITY_EXTENSION_REF }}
 
diff --git a/scripts/build.py b/scripts/build.py
index 0bf4db1..8c3bd66 100644
--- a/scripts/build.py
+++ b/scripts/build.py
@@ -14,13 +14,12 @@
 if len(desc_files) > 1:
 	raise ValueError('cannot have multiple descriptors changed or packages with spaces in their names')
 
+deploy = True
+
 if len(desc_files) == 0 or len(desc_files[0]) == 0:
-	print("No changed files, nothing will be built")
-	with open('env.sh', 'w+') as hdl:
-		hdl.write(f"COMMUNITY_EXTENSION_GITHUB=\n")
-		hdl.write(f"COMMUNITY_EXTENSION_REF=\n")
-		hdl.write(f"COMMUNITY_EXTENSION_NAME=\n")
-		sys.exit(os.EX_OK)
+	print("No changed files, only quack will be built as a test")
+	desc_files = ['extensions/quack/description.yml']
+	deploy = False
 
 desc_file = desc_files[0]
 
@@ -35,3 +34,8 @@
 	hdl.write(f"COMMUNITY_EXTENSION_GITHUB={desc['repo']['github']}\n")
 	hdl.write(f"COMMUNITY_EXTENSION_REF={desc['repo']['ref']}\n")
 	hdl.write(f"COMMUNITY_EXTENSION_NAME={desc['extension']['name']}\n")
+	excluded_platforms = desc['extension'].get('excluded_platforms')
+	if excluded_platforms:
+		hdl.write(f"COMMUNITY_EXTENSION_EXCLUDE_PLATFORMS={excluded_platforms}\n")
+	if deploy:
+		hdl.write(f"COMMUNITY_EXTENSION_DEPLOY=1\n")