diff --git a/Dockerfile b/Dockerfile
index 2894f4f8..6693ad57 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,7 +24,12 @@ RUN dnf -y install git koji jq \
 RUN koji download-build --arch ${arch} ${rpm_shellcheck} \
     && koji download-build --arch ${arch} ${rpm_csdiff}
 
-RUN dnf -y install "./${rpm_shellcheck}" "./${rpm_csdiff}" \
+RUN dnf -y install "./${rpm_shellcheck}" \
+    && dnf clean all
+
+RUN dnf install -y dnf-plugins-core \
+    && dnf copr enable -y packit/csutils-csdiff-170 \
+    && dnf install -y csdiff \
     && dnf clean all
 
 # --- Setup --- #
diff --git a/docs/example.sh b/docs/example.sh
index a4c63620..fab5606e 100644
--- a/docs/example.sh
+++ b/docs/example.sh
@@ -4,13 +4,13 @@
 # Quoting
 # =======
 
-# echo $1                           # Unquoted variables
+echo $1                           # Unquoted variables
 # rm "~/my file.txt"                # Quoted tilde expansion
 # v='--verbose="true"'; cmd $v      # Literal quotes in variables
-# touch $@                          # Unquoted $@
-# echo 'Path is $PATH'              # Variables in single quotes
+touch $@                          # Unquoted $@
+echo 'Path is $PATH'              # Variables in single quotes
 # trap "echo Took ${SECONDS}s" 0    # Prematurely expanded trap
-# unset var[i]                      # Array index treated as glob
+unset var[i]                      # Array index treated as glob
 
 # Conditionals
 # ============