ok. **Solved**. Kind of. Thanks to you guys!
What happens is this: when I log into the Lumina desktop, the `$PATH` is set in `~/.xprofile` Adding the right PATH in there solves the issue for geany. It now is a proper environment set. Now I can get to setting up my `context` working environment. Realizing context is not supported much as yet, I am curious to see how far I get.
The question that still puzzles me is why `.profile` is completely ignored. My understanding is, it should be executed once at first login... But that is something I will take to the TrueOS forum!