Not sure if this is helpful. Imported onboard in dCore-xenial, complex, 192 packages, didn't even launch. Imported florence , 154 packages, launched okay but crashed when using it, might just need some configuration, maybe florcence is an easier alternative to compile.
** (florence:17981): WARNING **: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files
** (florence:17981): ERROR **: AT-SPI: Couldn't connect to accessibility bus. Is at-spi-bus-launcher running?