diff --git a/rust/agama-cli/doc/backend-for-testing.md b/rust/agama-cli/doc/backend-for-testing.md
index a5612620ac..d23c993cf7 100644
--- a/rust/agama-cli/doc/backend-for-testing.md
+++ b/rust/agama-cli/doc/backend-for-testing.md
@@ -33,53 +33,8 @@ of [.github/workflows/ci.yml][ci.yml].
 
 [ci.yml]: https://github.com/openSUSE/agama/blob/25462f57ab695d6910beb59ff0b21a7afaeda47e/.github/workflows/ci.yml
 
+## Resulting Script
 
-```sh
-# https://build.opensuse.org/package/show/systemsmanagement:Agama:Staging/agama-testing
-CIMAGE=registry.opensuse.org/systemsmanagement/agama/staging/containers/opensuse/agama-testing:latest
-# rename this if you test multiple things
-CNAME=agama
-# the '?' here will report a shell error
-# if you accidentally paste a command without setting the variable first
-echo ${CNAME?}
-
-test -f service/agama.gemspec || echo "You should run this from a checkout of agama"
-
-# destroy the previous instance
-podman stop ${CNAME?}
-podman rm ${CNAME?}
-
-mkdir -p ./mnt/log-yast2 # needed?
-mkdir -p ./mnt/run-agama # only needed for D-Bus access from outside, unused now
-
-# Update our image
-podman pull ${CIMAGE?}
-
-podman run --name ${CNAME?} \
-  --privileged --detach --ipc=host \
-  -v .:/checkout -v ./mnt/run-agama:/run/agama -v ./mnt/log-yast2:/var/log/YaST2 \
-  ${CIMAGE?}
-
-# shortcut for the following
-CEXEC="podman exec ${CNAME?} bash -c"
-
-${CEXEC?} "cd /checkout && ./setup-services.sh"
-
-# Optional: explicit service start using a separate log file
-${CEXEC?} "cd /checkout/service && (bundle exec bin/agamactl > service.log 2>&1 &)"
-
-# Now the CLI is in the same repo, just symlink it
-${CEXEC?} "ln -sfv /checkout/./rust/target/debug/agama /usr/bin/agama"
-
-# Optional: Play!
-${CEXEC?} "agama -f yaml config show"
-
-# Optional: show logs of autostarted services
-${CEXEC?} "journalctl --since=-5min"
-
-# Optional: show logs of explicitly started services
-${CEXEC?} "cat /checkout/service/service.log"
-
-# Optional: Interactive shell in the container
-podman exec --tty --interactive ${CNAME?} bash
-```
+The script, which used to be inlined here, is now at
+[`/testing_using_container.sh`](../../../testing_using_container.sh).
+>>>>>>> 8f2f0404 (copied the script part of rust/agama-cli/doc/backend-for-testing.md)
diff --git a/setup-services.sh b/setup-services.sh
index e9a4596a1f..29abd1da43 100755
--- a/setup-services.sh
+++ b/setup-services.sh
@@ -102,6 +102,15 @@ fi
 # Rubygem dependencies
 (
   cd $MYDIR/service
+
+  if [ -d /checkout-ruby-dbus ]; then
+      # we are in a container, told to use that one
+      # instead of a released version
+      # edit +Gemfile and -gemspec
+      sed -e '/ruby-dbus/d' -i Gemfile agama.gemspec
+      sed -e '/gemspec/a gem "ruby-dbus", path: "/checkout-ruby-dbus"' -i Gemfile
+  fi
+
   bundle config set --local path 'vendor/bundle'
   bundle install
 )
diff --git a/testing_using_container.sh b/testing_using_container.sh
new file mode 100755
index 0000000000..87becab2c6
--- /dev/null
+++ b/testing_using_container.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+# Run checked-out Agama in a podman container.
+# This is meant to be run from a working copy of the git repo.
+# It uses the systemsmanagement:Agama:Staging/agama-testing image as
+# a platform and runs /setup.sh
+#
+# Details:
+# - container name: agama
+# - port 9090 is exposed so that web UI works
+# - 'WITH_RUBY_DBUS=1 $0' will prefer ../ruby-dbus to any ruby-dbus.gem
+
+set -x
+set -eu
+
+# https://build.opensuse.org/package/show/systemsmanagement:Agama:Staging/agama-testing
+CIMAGE=registry.opensuse.org/systemsmanagement/agama/staging/containers/opensuse/agama-testing:latest
+# rename this if you test multiple things
+CNAME=agama
+
+test -f service/agama.gemspec || { echo "You should run this from a checkout of agama"; exit 1; }
+
+# destroy the previous instance, can fail if there is no previous instance
+podman stop ${CNAME?} || : no problem if there was nothing to stop
+podman rm ${CNAME?} || : no problem if there was nothing to remove
+
+# Update our image
+podman pull ${CIMAGE?}
+
+# Optionally use a git version of ruby-dbus
+# because Agama pushes its limits so it's better
+# to set up for easy testing
+MORE_VOLUMES=()
+if [ "${WITH_RUBY_DBUS-}" = 1 ]; then
+  MORE_VOLUMES=(-v ../ruby-dbus:/checkout-ruby-dbus)
+fi
+
+podman run --name ${CNAME?} \
+  --privileged --detach --ipc=host \
+  -v .:/checkout \
+  ${MORE_VOLUMES[@]} \
+  -p 9090:9090 \
+  ${CIMAGE?}
+
+# shortcut for the following
+CEXEC="podman exec ${CNAME?} bash -c"
+
+${CEXEC?} "cd /checkout && ./setup.sh"
+
+# Now the CLI is in the same repo, just symlink it
+${CEXEC?} "ln -sfv /checkout/./rust/target/debug/agama /usr/bin/agama"
+
+# Manually start cockpit as socket activation does not work with port forwarding
+${CEXEC?} "systemctl start cockpit"
+
+# Interactive shell in the container
+podman exec --tty --interactive ${CNAME?} bash