I (admitedly much younger than you) would think that assuming there's good internet and decent road connectivity, you could spend a lot of time on your interests and hobbies, no? My biggest hobbies (photography, diy audio) don't really need urban environments after the manufactured camera/woofer leaves the warehouse and ships to your home. Even easier perhaps if your interest is purely coding/laptop work (like writing a novel), I would think?
(For what it's worth - I myself am a city guy, but only because that's where I grew up in and have spent all my life. A town of 100k people feels desolate for me on Sunday evening, but I also don't live with family.)
The two times in my adult life that I was single (22-28 and 32-35), I would have been miserable in my hometown - as are almost everyone I talk to who is stuck here and single.
When I was single and younger, my hobbies were teaching fitness classes around the metro area and participating in group charity races with friends. We use to do one every month.
(For what it's worth - I myself am a city guy, but only because that's where I grew up in and have spent all my life. A town of 100k people feels desolate for me on Sunday evening, but I also don't live with family.)