Just to note that I have managed to complete a simple proof-of-concept syncevolution run under Windows 10 WSL with Debian. All I did was a simple sync between a remote webdav server and local files, but it works. Apart from a small packaging problem (reported separately), the only real issues are the fact that it is headless and X Windows is not available. Two workrounds are needed for that: 1) Start dbus using: dbus-run-session -- bash 2) Start the gnome-keyring-daemon using: eval `echo password | gnome-keyring-daemon --unlock` Graham