diff --git a/Containerfile b/Containerfile
index b44e887..43a64d4 100644
--- a/Containerfile
+++ b/Containerfile
@@ -3,6 +3,7 @@ ARG FEDORA_MAJOR_VERSION=37
 FROM quay.io/fedora/fedora-coreos:stable
 
 COPY etc /etc
+RUN mkdir -p /var/lib/duperemove
 
 # Remove undesired packages
 RUN rpm-ostree override remove \
diff --git a/etc/default/duperemove b/etc/default/duperemove
new file mode 100644
index 0000000..c850be3
--- /dev/null
+++ b/etc/default/duperemove
@@ -0,0 +1,5 @@
+# Dir to store hash files. Each instance has own, named by $(systemd-escape <instance>).hashfile
+HashDir=/var/lib/duperemove
+# Additional options for duperemove binary
+OPTIONS="--skip-zeroes --hash=xxhash"
+