>>1What kind of programming? since i don't see how remote environment have WiFi and
given most programmers don't pay for expensive satellite internet(starlink might be cheaper, but its router is not something luggable), so its presumed a form of offline programming.
1.Does the device have a solar cell or is fed from solar power?
if yes, any environment with abudant sun will allow to extend battery life.
if not,offline programming will require some charging device(hand crank?) and will be extremely limited. Battery life is the key metric here and all possible features have to extend it: dark mode,
low-resource software, low-res graphics,etc.
2.Programming languages: if you don't have access to stack overflow and web search, i'd suggest using
simple languages with built-in help like LISP and BASIC.
3.Type of environment: i assume you trying to find a type of place which
doesn't have distractions and doesn't reduce comfort for programming.
A desert seems like a great environment, with plenty of solar power, so
something like an oasis in a desert would be such environment.
However if you're looking for inspiration and challenge, probably mountains with
some huts/wooden tables to put a laptop on.
I see this question as 'in which environment can i isolate myself from the world?',
and the idea is not removing the world's influence but reducing annoyances.
Moving to some remote log cabin to code a new TempleOS isn't going to
matter if you're not connected to the internet and the world at large.