If you're in cumberland proper, your main option is cable, which is fine, fast and stable. since the culture is blue collar, their lineman due a perfectionist tier type guys who pride themselves in their craft. they have a guy there who does fibre and is pretty chill but ironically he only runs line rurally (not in the main urban core of cumberland). they have a startup-ish grass roots wireless based internet which is cool but kind of hard to plug into.
They also have various speakeasies fully in the classic unlicensed since but for obvious reasons I won't say where. I would call it a "deregulated" region. Whereas in most of MD you have vehicle emissions and all that redtape, none of it in cumberland.
there are methheads about but police force and community are hand in hand and highly functional
if you're in cumberland proper all you could want is walkable, including an amtrak station that links you directly to DC and chicago, walking distance
there is an aspect of xenophobia but generally if you live there a while, well, if you're willing to live in cumberland that's good enough for most people to welcome you. it does have a small town vibe as far as saying hello to everyone on the sidewalk as such
the other point people who visit may miss about appalachian culture (it is appalachian culture very much so, not maryland culture) is everyone dresses like a methhead, even people who aren't methheads, so take appearences softly.