One keeps up with it, by keeping up with it. Folks keep up with latest social media gossip, the news, TV shows, or whatever interests them. You just stay on it.
Weekend I got to running Kimi K2, last 2 days I have been driving Ernie4.5-300B, Just finished downloading the latest Qwen3-235b this morning and started using it this evening. Tonight I'll start downloading this 480B, might take 2-3 days with my crappy internet and then I'll get to it.
Ergo my point about work and personal obligations (family, especially small kids). 2-4 hours per day for a solitary hobby is a surefire way to a divorce and estranged kids.
I'm married, kids, got an elderly parent at end of life that I'm caring for, and so on and so forth. How do I do it? Balance, right now, the kids are packing their bags to go to camp, so I have about 10 mins. I just replied to my prompt from last night, and will head out to drop them off, when I come in, I'll have a reply and enter my next prompt before I sign in for work. When the kids come in from school, they stay in my office and do their workbooks or watch TV while I sink in some work. You don't have to stay there for 4 straight hours, I get on the computer for 5 minutes, do a few and step out, then from that time till I get back on, I keep thinking about whatever problem I'm trying to solve.
Obsession?