diff --git a/slices/gosu.yaml b/slices/gosu.yaml
new file mode 100644
index 00000000..91939ebc
--- /dev/null
+++ b/slices/gosu.yaml
@@ -0,0 +1,13 @@
+package: gosu
+
+essential:
+  - gosu_copyright
+
+slices:
+  bins:
+    contents:
+      /usr/sbin/gosu:
+
+  copyright:
+    contents:
+      /usr/share/doc/gosu/copyright:
diff --git a/slices/libnginx-mod-http-headers-more-filter.yaml b/slices/libnginx-mod-http-headers-more-filter.yaml
new file mode 100644
index 00000000..54c28022
--- /dev/null
+++ b/slices/libnginx-mod-http-headers-more-filter.yaml
@@ -0,0 +1,26 @@
+package: libnginx-mod-http-headers-more-filter
+
+essential:
+  - libnginx-mod-http-headers-more-filter_copyright
+
+slices:
+  modules:
+    essential:
+      # libnginx-mod-http-headers-more-filter depends on nginx-abi, which is
+      # a virtual package provided by nginx, hence the dependency on nginx_bins.
+      - libc6_libs
+      - libnginx-mod-http-headers-more-filter_config
+      - nginx_bins
+    contents:
+      /usr/lib/nginx/modules/ngx_http_headers_more_filter_module.so:
+
+  config:
+    contents:
+      # This symlink is created by the maintainer scipts
+      /etc/nginx/modules-enabled/50-mod-http-headers-more-filter.conf:
+        symlink: /usr/share/nginx/modules-available/mod-http-headers-more-filter.conf
+      /usr/share/nginx/modules-available/mod-http-headers-more-filter.conf:
+
+  copyright:
+    contents:
+      /usr/share/doc/libnginx-mod-http-headers-more-filter/copyright:
diff --git a/slices/nginx.yaml b/slices/nginx.yaml
index 7d148250..2399e0a5 100644
--- a/slices/nginx.yaml
+++ b/slices/nginx.yaml
@@ -14,6 +14,7 @@ slices:
       - libpcre2-8-0_libs
       - libssl3t64_libs
       - nginx-common_config
+      - nginx-common_modules
       - zlib1g_libs
     contents:
       /usr/sbin/nginx:
diff --git a/slices/python3-pip.yaml b/slices/python3-pip.yaml
new file mode 100644
index 00000000..f144c4dc
--- /dev/null
+++ b/slices/python3-pip.yaml
@@ -0,0 +1,25 @@
+package: python3-pip
+
+essential:
+  - python3-pip_copyright
+
+slices:
+  bins:
+    essential:
+      - python3-pip_libs
+    contents:
+      /usr/bin/pip:
+      /usr/bin/pip3:
+
+  libs:
+    essential:
+      - ca-certificates_data
+      - python3-wheel_libs
+      - python3_standard
+    contents:
+      /usr/lib/python3/dist-packages/pip-*.dist-info/**:
+      /usr/lib/python3/dist-packages/pip/**:
+
+  copyright:
+    contents:
+      /usr/share/doc/python3-pip/copyright:
diff --git a/slices/python3-wheel.yaml b/slices/python3-wheel.yaml
new file mode 100644
index 00000000..22efca18
--- /dev/null
+++ b/slices/python3-wheel.yaml
@@ -0,0 +1,16 @@
+package: python3-wheel
+
+essential:
+  - python3-wheel_copyright
+
+slices:
+  libs:
+    essential:
+      - python3_standard
+    contents:
+      /usr/lib/python3/dist-packages/wheel-*.dist-info/**:
+      /usr/lib/python3/dist-packages/wheel/**:
+
+  copyright:
+    contents:
+      /usr/share/doc/python3-wheel/copyright:
diff --git a/tests/spread/integration/gosu/task.yaml b/tests/spread/integration/gosu/task.yaml
new file mode 100644
index 00000000..dcb1fd83
--- /dev/null
+++ b/tests/spread/integration/gosu/task.yaml
@@ -0,0 +1,11 @@
+summary: Integration tests for gosu
+
+execute: |
+  # Chisel a minimum number of slices to give us a runnable system that we can
+  # test in.
+  rootfs="$(install-slices gosu_bins)"
+
+  mkdir -p "${rootfs}"/proc/self
+  ln -sf /usr/sbin/gosu "${rootfs}"/proc/self/exe
+
+  chroot "${rootfs}/" gosu -h
diff --git a/tests/spread/integration/libnginx-mod-http-headers-more-filter/task.yaml b/tests/spread/integration/libnginx-mod-http-headers-more-filter/task.yaml
new file mode 100644
index 00000000..62b0b23d
--- /dev/null
+++ b/tests/spread/integration/libnginx-mod-http-headers-more-filter/task.yaml
@@ -0,0 +1,9 @@
+summary: Integration tests for libnginx-mod-http-headers-more-filter
+
+execute: |
+  # Chisel a minimum number of slices to give us a runnable system that we can
+  # test in.
+  rootfs="$(install-slices base-files_var base-passwd_data libnginx-mod-http-headers-more-filter_modules)"
+
+  # This will fail if loading of the NGINX module fails.
+  chroot "${rootfs}/" nginx -t
diff --git a/tests/spread/integration/python3-pip/task.yaml b/tests/spread/integration/python3-pip/task.yaml
new file mode 100644
index 00000000..e00e24b2
--- /dev/null
+++ b/tests/spread/integration/python3-pip/task.yaml
@@ -0,0 +1,10 @@
+summary: Integration tests for python3-pip
+
+execute: |
+  rootfs="$(install-slices python3-pip_bins)"
+
+  cp /etc/resolv.conf "${rootfs}/etc/"
+
+  # Smoke tests.
+  chroot ${rootfs} /usr/bin/pip --version
+  chroot ${rootfs} /usr/bin/pip install --upgrade setuptools