Delayed Set Binding

DebouncedBinding.swift

@propertyWrapper
struct DebouncedBinding<Value>: DynamicProperty {
    @Binding var remote: Value
    @State var local: Value? = nil
    
    init(_ remote: Binding<Value>) {
        self._remote = remote
    }
    
    var wrappedValue: Value {
        get {
            local ?? remote
        }
        nonmutating set {
            local = newValue
        }
    }
    
    var projectedValue: Binding<Value> {
        Binding(get: { self.wrappedValue }, set: { self.wrappedValue = $0 })
    }
    
    func flush() {
        if let local = local {
            remote = local
            self.local = nil
        }
    }
}