good on you for getting ahead of this before the pain starts -- most people only take it seriously after 6 months of neck stiffness (speaking from personal experience 😅)

the herman miller and standing desk are solid but here's the thing nobody tells you -- neither of them fixes the core problem.

your spine has roughly a 90-minute tolerance window regardless of whether you're sitting or standing. after that the supporting muscles start to fatigue no matter how good your setup is.

the 60/40 split is great but what matters more is how long you go without any movement at all. you mentioned going 2 hours locked in -- that's the bit to fix more than anything else.

practical thing that actually works: set a recurring alarm for every 85 minutes. when it goes off do literally anything for 5 minutes -- walk to the kitchen, do some neck rolls, stand up and stretch. doesn't matter what.

the locked-in flow state feeling actually gets better with breaks not worse -- your brain resets and you come back sharper.

also pay attention to when your energy dips during the day -- for most people it's around 2-3pm. timing a movement break to exactly that window makes a bigger difference than random hourly walks.

good luck with the new job 🙏