LDCad 1.7 Alpha 1 (win+linux)

[N. W. Perry]

The only downfall for that is that the develoment of LPub3D has again came to a stop some time ago.
I am uncertain of Trevor is still developing since I have lost contact with him too. I also have no idea if he reads the forums or comments in his Github page for LPub3D :-(

Does anyone have an idea where Trevor is and has contact with him?

His most recent post here was a year and some days ago, and the most recent updates to LPub3D appear to have been the October before that (2020).