is there a way to sign up to farcaster via warpcast.com (no mobile) ?

No, web app doesn’t yet manage your farcaster keys for you

Not sure -- last time I signed in on the desktop it asked to scan a qr code from my phone.

I signed up for WC initially on the mobile version of the app on macOS, works the same way. As far as signing up in a natively non-mobile experience, not sure

/glimmer /nook / prev: manifold.xyz opensea.io

I don't really know the difference between farcaster and warpcast tbh. Brain smooth.