Risk sizing on Kalshi: is it just a flat percentage, or are people adjusting per contract type?

I'm trying to get a handle on risk management for these Kalshi contracts, and it feels different than typical options. With the binary outcomes, are folks just sticking to a flat 1-2% of their capital per contract, or are you actually varying it significantly based on the volatility or perceived edge of a specific event? Trying to figure out if my gut feeling to adjust is sound, or just overthinking it.