I like combining Athletics action (Trip, Shove, etc) with Assurance on low(er) level enemies.

For tokens on the VTT I use: https://rolladvantage.com/tokenstamp/ . I’m still experimenting with music but my group usually just throws on a random YouTube playlist.

Like everyone else, I can’t recommend Pathbuilder 2e enough! I even paid for it although the basic version does almost everything (with ads). The only bummer is that the app and web version are separate purchase.

I think pandatheist at the Bone Box Chant blog does a solid job defining it here (and expanding on it in a followup post): https://boneboxchant.wordpress.com/2019/12/21/nsr/

To quote the definition, NSR games:

• Have a GM, Weird Setting, & Living World
• Are Rules Light & Deadly (or Consequential)
• Focus on Emergent Narrative, External Interaction, & Exploration

I think all of those things (except maybe Weird Setting IMO) cover the genre well with an intentionally broad and inclusive definition. I also think looking at examples may be most illustrative and understand that it’s more a community than one particular set of traits. Yochai Gal (of Cairn fame) has a great article on this very idea: https://newschoolrevolution.com/2022/05/04/the-new-new-school-revolution .