This is cool. I like the idea of using something separate than Notion, because Notion tends to get too distracting.

Have you considered adding some operating templates for startups? I imagine your user is signing up because they need new process, and giving them some inspiration to play with may accelerate onboarding. (I signed up hoping to get that template you used in your demo video)

I'm not a fan of the superhuman interface, I've found that it create a big learning curve for what is could be a simple interface. At the same time I'm glad you guys drew inspiration from Linear, they have some great design too. I feel like they balance the hotkeys + clickable elements really well.

Slack integration is great. I think Loom would be big in my workflow too.

Happy to do a user interview etc to help out. email is in my profile.