diff --git a/.container/Containerfile-etch.m68k b/.container/Containerfile-etch.m68k
index 6ab1d18..e0fa8f8 100644
--- a/.container/Containerfile-etch.m68k
+++ b/.container/Containerfile-etch.m68k
@@ -24,6 +24,8 @@ RUN apt-get install --yes --allow-unauthenticated debian-archive-keyring debian-
 RUN apt-key update
 RUN apt-get upgrade --yes
 RUN apt-get install --yes --allow-unauthenticated make gcc binutils docbook-to-man e2fslibs-dev file
+RUN apt-get clean
+RUN rm /var/lib/apt/lists/archive.debian.org_debian_dists_etch-m68k_Release /var/lib/apt/lists/archive.debian.org_debian_dists_etch-m68k_main_binary-m68k_Packages
 RUN groupadd -g $GID builder
 RUN useradd -g $GID -u $UID builder
 CMD ["bash"]
diff --git a/.container/Containerfile-sid.m68k b/.container/Containerfile-sid.m68k
index a228430..41b408d 100644
--- a/.container/Containerfile-sid.m68k
+++ b/.container/Containerfile-sid.m68k
@@ -24,6 +24,8 @@ RUN apt-get update --yes
 RUN apt-get install --yes debian-keyring debian-archive-keyring
 RUN apt-get upgrade --yes
 RUN apt-get install --yes make gcc binutils docbook-to-man libext2fs-dev file
+RUN apt-get clean
+RUN rm /var/lib/apt/lists/ftp.ports.debian.org_debian-ports_dists_sid_main_binary-m68k_Packages /var/lib/apt/lists/ftp.ports.debian.org_debian-ports_dists_unreleased_main_binary-m68k_Packages
 RUN groupadd -g $GID builder
 RUN useradd -M -g $GID -u $UID builder
 CMD ["bash"]
diff --git a/container.mk b/container.mk
index bb368f8..77bc119 100644
--- a/container.mk
+++ b/container.mk
@@ -44,3 +44,16 @@ emile-m68k-etch-container: import-etch-rootfs
 	$(CONTAINER_ENGINE) build --pull=never -f .container/Containerfile-etch.m68k -t $(EMILE_IMAGE_ETCH) \
 				  --build-arg UID=$$(id -u) \
 				  --build-arg GID=$$(id -g)
+
+DATE=$(shell date +%Y%m%d)
+.PHONY:
+emile-containers-export:
+	-mkdir archives
+	$(CONTAINER_ENGINE) create --name etch-container-temp localhost/$(EMILE_IMAGE_ETCH)
+	$(CONTAINER_ENGINE) export -o archives/$(EMILE_IMAGE_ETCH)-$(DATE).tar etch-container-temp
+	$(CONTAINER_ENGINE) rm etch-container-temp
+	xz -9 archives/$(EMILE_IMAGE_ETCH)-$(DATE).tar
+	$(CONTAINER_ENGINE) create --name sid-container-temp localhost/$(EMILE_IMAGE_SID)
+	$(CONTAINER_ENGINE) export -o archives/$(EMILE_IMAGE_SID)-$(DATE).tar sid-container-temp
+	$(CONTAINER_ENGINE) rm sid-container-temp
+	xz -9 archives/$(EMILE_IMAGE_SID)-$(DATE).tar