diff --git a/ci/do-build.sh b/ci/do-build.sh
new file mode 100755
index 0000000..fb8346a
--- /dev/null
+++ b/ci/do-build.sh
@@ -0,0 +1,32 @@
+#!/bin/bash
+
+set -eux -o pipefail
+shopt -s failglob
+
+# We're reusing our artifacts, so we absolutely need a stable destdir.
+# Turbo-hipster takes care of cleaning up the mess betweeb builds.
+PREFIX=~/target
+mkdir ${PREFIX}
+export PATH=${PREFIX}/bin:$PATH
+export LD_LIBRARY_PATH=${PREFIX}/lib64:${PREFIX}/lib
+export PKG_CONFIG_PATH=${PREFIX}/lib64/pkgconfig:${PREFIX}/lib/pkgconfig
+
+if [[ $TH_JOB_NAME =~ .*-sanitizers-.* ]]; then
+    # https://gitlab.kitware.com/cmake/cmake/issues/16609
+    CMAKE_OPTIONS="${CMAKE_OPTIONS} -DTHREADS_HAVE_PTHREAD_ARG:BOOL=ON"
+fi
+
+# force-enable tests for packages which use, eh, interesting setup
+# - libyang and libnetconf2 copmare CMAKE_BUILD_TYPE to lowercase "debug"...
+CMAKE_OPTIONS="${CMAKE_OPTIONS} -DENABLE_BUILD_TESTS=ON -DENABLE_VALGRIND_TESTS=OFF"
+
+mkdir -p ${ZUUL_PROJECT}/build
+cd ${ZUUL_PROJECT}/build
+${CMAKE} -GNinja \
+    -DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE:-Debug} \
+    -DCMAKE_INSTALL_PREFIX=${PREFIX} \
+    ${CMAKE_OPTIONS} \
+    ${TH_GIT_PATH}
+ninja-build
+
+${CTEST} --output-on-failure