when the GpgOL.js client was built and installed locally and you open the setup window, it shows a local path to a manifest file that doesn't exist (yet?). this is very confusing even if it only occurs for local test builds. i would assume that after calling cmake --install, also the manifest XML file was installed to the prefixed directory, which doesn't seem to be the case as of now. before the client offers to copy the manifest path to the clipboard for installation in outlook, it should first verify that this file actually exists.