Warpcast

very minor, but I do find myself more often coming across desktop FC sign-ins and having to whip out phone even though i'm logged into desktop WC already. Would be cool to just auto-login 

Makes me wonder if the apps building on top of FC are more mobile consumption oriented (what I imagine) vs. desktop consumption

Vibing on chain. Investor @ Bain Capital Crypto. Ex-OpenSea, yc alum

Oooh gotcha! 

Random related question -- digging into the docs, I imagine there's only one signing key that's being used for both WC mobile + desktop right? 

I.e. for apps that want write permission + want both desktop and mobile experiences, they're just getting and managing one signer per user right? Is there ever a situation where an app would have different signing keys (maybe for more granular user permissioning, like post only in this channel? Though even there I imagine you can modify the signer permissions itself?)

The current design requires the custody address private key (which your Warpcast app has access to).

We may change in the future.