The build path is embedded in krita in two different ways, notably directly into the /usr/bin/krita binary, and the RPATH contains the build path resulting in different buildid. The attached patches fix this by removing the explicitly embedded build path in krita/main.cc, and passing -DCMAKE_BUILD_RPATH_USE_ORIGIN=ON via a dh_auto_configure override, which should use a relative path for RPATH. With these patches applied, krita should build reproducibly on tests.reproducible-builds.org! Thanks for maintaining krita! live well, vagrant