diff --git a/.github/workflows/precompile.yml b/.github/workflows/precompile.yml
index 5b277b1..ec5041f 100644
--- a/.github/workflows/precompile.yml
+++ b/.github/workflows/precompile.yml
@@ -1,10 +1,14 @@
 name: precompile
 
 on:
+  workflow_dispatch:
   push:
     tags:
       - 'v*'
 
+env:
+  CI: true
+
 permissions:
   contents: write
 
diff --git a/Makefile b/Makefile
index 37f7a57..3f786b1 100644
--- a/Makefile
+++ b/Makefile
@@ -44,9 +44,15 @@ MAKE_BUILD_FLAGS ?= -j$(DEFAULT_JOBS)
 .DEFAULT_GLOBAL := build
 
 build: $(NIF_SO_REL)
-	@echo > /dev/null
+	@ if [ "${CI}" = "true" ]; then \
+		file "$(NIF_SO)" ; \
+	fi
 
 clean:
+	@rm -rf "$(NIF_SO_REL)"
+	@rm -rf "$(NIF_SO)"
+	@rm -rf "$(CMAKE_ADBC_NIF_BUILD_DIR)"
+	@rm -rf "$(CMAKE_ADBC_BUILD_DIR)"
 	@rm -rf "$(PRIV_DIR)"
 
 priv_dir: