Feature Request

I'm migrating my code to 0.7-rc.0, encountering this compiling error

pub type Runtime = ReadOnlySignal<RuntimeImpl, SyncStorage>;

I found the new ReadSignal only supports UnsyncStorage, is it possible to have a Sync ReadSignal?

IIRC, use a signal Read and Write simultaneously might be dangerous (panic?), so it is sensible to have a SyncSignal read-only.

Implement Suggestion