Not really dead, there were some changes on OBS so newer rootfs can be automatically build on GitLab CI (https://gitlab.com/sailfishos-porters-ci). But I don't plan to look into more Mods support myself, especially since Keyboard Mod was cancelled, unfortunately. Regarding double tap to wake, I didn't look into it. Generally it depends on touch screen driver support for this in kernel. Can Android do it on this device?