diff --git a/.github/workflows/mkosi.yml b/.github/workflows/mkosi.yml
index eed78696f3..973eb4fd7f 100644
--- a/.github/workflows/mkosi.yml
+++ b/.github/workflows/mkosi.yml
@@ -123,6 +123,8 @@ jobs:
         ToolsTreeDistribution=fedora
         # TODO: Drop once https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2038777 is fixed in Github Actions
         QemuFirmware=uefi
+        # We build with debuginfo so there's no point in mounting the sources into the machine.
+        RuntimeBuildSources=no
         EOF
 
         # These should override the options from mkosi.conf so we put them in a dropin that's ordered later
diff --git a/mkosi.images/system/mkosi.conf b/mkosi.images/system/mkosi.conf
index 6d476d385e..f7f32a07e6 100644
--- a/mkosi.images/system/mkosi.conf
+++ b/mkosi.images/system/mkosi.conf
@@ -50,6 +50,7 @@ Packages=
         openssl
         python3
         qrencode
+        radvd
         rsync
         sed
         socat
diff --git a/mkosi.images/system/mkosi.conf.d/10-arch/mkosi.conf b/mkosi.images/system/mkosi.conf.d/10-arch/mkosi.conf
index cc05300e80..0a91f6e226 100644
--- a/mkosi.images/system/mkosi.conf.d/10-arch/mkosi.conf
+++ b/mkosi.images/system/mkosi.conf.d/10-arch/mkosi.conf
@@ -38,6 +38,7 @@ Packages=
         polkit
         procps-ng
         psmisc
+        python-psutil
         quota-tools
         sbsigntools
         shadow
diff --git a/mkosi.images/system/mkosi.conf.d/10-debian-ubuntu/mkosi.conf b/mkosi.images/system/mkosi.conf.d/10-debian-ubuntu/mkosi.conf
index 492872029d..c80cd2b839 100644
--- a/mkosi.images/system/mkosi.conf.d/10-debian-ubuntu/mkosi.conf
+++ b/mkosi.images/system/mkosi.conf.d/10-debian-ubuntu/mkosi.conf
@@ -61,6 +61,7 @@ Packages=
         policykit-1
         procps
         psmisc
+        python3-psutil
         quota
         sbsigntool
         squashfs-tools
diff --git a/mkosi.images/system/mkosi.conf.d/10-opensuse/mkosi.conf b/mkosi.images/system/mkosi.conf.d/10-opensuse/mkosi.conf
index 349e00bdcd..10cbd21a8f 100644
--- a/mkosi.images/system/mkosi.conf.d/10-opensuse/mkosi.conf
+++ b/mkosi.images/system/mkosi.conf.d/10-opensuse/mkosi.conf
@@ -31,6 +31,7 @@ Packages=
         cryptsetup
         dbus-broker
         device-mapper
+        dhcp-server
         docbook-xsl-stylesheets
         f2fs-tools
         gawk
@@ -56,6 +57,7 @@ Packages=
         procps4
         psmisc
         python3-pefile
+        python3-psutil
         quota
         rpm-build
         rsync
diff --git a/test/TEST-21-DFUZZER/meson.build b/test/TEST-21-DFUZZER/meson.build
index 03cae4f7da..e107b85561 100644
--- a/test/TEST-21-DFUZZER/meson.build
+++ b/test/TEST-21-DFUZZER/meson.build
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: LGPL-2.1-or-later
 
-test_params = test_params + {
+test_params +=  {
         'timeout' : 3600,
-        'priority': -50,
+        'priority' : -50,
 }