diff --git a/packaging/Makefile b/packaging/Makefile
index f9a35ee..93d8d4a 100644
--- a/packaging/Makefile
+++ b/packaging/Makefile
@@ -1,4 +1,4 @@
-.PHONY: check-tools build-image build sign clean veryclean keyfile
+.PHONY: check-tools build-image build sign clean veryclean keyfile prepare-all clean-all
 
 # If you run:
 #   docker run --rm --name squid adricu/alpine-squid
@@ -56,7 +56,13 @@ prepare-all: $(patsubst %,%.prepare,$(file < package-list))
 	@if [ -f packages/$*/Makefile.external ]; then \
 		$(MAKE) -C packages/$* -f Makefile.external prepare; fi
 
-clean:
+clean-all: $(patsubst %,%.clean,$(file < package-list))
+
+%.clean:
+	@if [ -f packages/$*/Makefile.external ]; then \
+		$(MAKE) -C packages/$* -f Makefile.external clean; fi
+
+clean: clean-all
 	rm -f .build-image.*
 	-docker rmi synit-build:aarch64
 	-docker rmi synit-build:x86_64
diff --git a/packaging/packages/preserves-tools/Makefile.external b/packaging/packages/preserves-tools/Makefile.external
index a61b1c1..5b0d9ce 100644
--- a/packaging/packages/preserves-tools/Makefile.external
+++ b/packaging/packages/preserves-tools/Makefile.external
@@ -1,7 +1,6 @@
 # -*- makefile -*-
 
-prepare: preserves
-	rm -f preserves-tool.$(ARCH)
+prepare: preserves miniclean
 	echo nightly > preserves/implementations/rust/rust-toolchain
 	$(MAKE) -C preserves/implementations/rust $(ARCH)-binary-release
 	cp -p preserves/implementations/rust/target/$(ARCH)-*/release/preserves-tool \
@@ -13,3 +12,11 @@ prepare: preserves
 
 preserves:
 	git clone https://gitlab.com/preserves/preserves
+
+miniclean:
+	rm -f preserves-tool.$(ARCH)
+
+clean: miniclean
+	rm -rf preserves/implementations/rust/target
+	rm -f preserves/implementations/rust/rust-toolchain
+	rm -f VERSION
diff --git a/packaging/packages/syndicate-server/Makefile.external b/packaging/packages/syndicate-server/Makefile.external
index da05a9e..43dbd1d 100644
--- a/packaging/packages/syndicate-server/Makefile.external
+++ b/packaging/packages/syndicate-server/Makefile.external
@@ -1,7 +1,6 @@
 # -*- makefile -*-
 
-prepare: syndicate-rs
-	rm -f syndicate-server.$(ARCH)
+prepare: syndicate-rs miniclean
 	$(MAKE) -C syndicate-rs $(ARCH)-binary-release
 	cp -p syndicate-rs/target/$(ARCH)-*/release/syndicate-server syndicate-server.$(ARCH)
 	(cd syndicate-rs/syndicate-server && cargo metadata --format-version 1) \
@@ -12,3 +11,10 @@ prepare: syndicate-rs
 
 syndicate-rs:
 	git clone https://git.syndicate-lang.org/syndicate-lang/syndicate-rs
+
+miniclean:
+	rm -f syndicate-server.$(ARCH)
+
+clean: miniclean
+	rm -rf syndicate-rs/target
+	rm -f VERSION
diff --git a/packaging/packages/synit-config/Makefile.external b/packaging/packages/synit-config/Makefile.external
index a42e0fd..a1cb6ec 100644
--- a/packaging/packages/synit-config/Makefile.external
+++ b/packaging/packages/synit-config/Makefile.external
@@ -2,3 +2,6 @@
 
 prepare:
 	rsync -a ../../../protocols .
+
+clean:
+	rm -rf protocols
diff --git a/packaging/packages/synit-pid1/Makefile.external b/packaging/packages/synit-pid1/Makefile.external
index 38d28db..c49ee95 100644
--- a/packaging/packages/synit-pid1/Makefile.external
+++ b/packaging/packages/synit-pid1/Makefile.external
@@ -1,9 +1,14 @@
 # -*- makefile -*-
 
-prepare:
-	rm -f synit-pid1.$(ARCH)
+prepare: miniclean
 	$(MAKE) -C ../../../synit-pid1 $(ARCH)-binary-release
 	cp -p ../../../synit-pid1/target/$(ARCH)-*/release/synit-pid1 synit-pid1.$(ARCH)
 	(cd ../../../synit-pid1 && cargo metadata --format-version 1) | \
 		preserves-tool convert --output-format unquoted \
 			--select '. "packages" / [. "name" = "synit-pid1"] . "version"' > VERSION
+
+miniclean:
+	rm -f synit-pid1.$(ARCH)
+
+clean: miniclean
+	rm -f VERSION