persist the currently-selected project

app/src/state/persist.ts

@@ -0,0 +1,13 @@
+import { PersistOptions } from "zustand/middleware/persist";
+import { State } from "./store";
+
+export const stateToPersist = {
+  selectedProjectId: null as string | null,
+};
+
+export const persistOptions: PersistOptions<State, typeof stateToPersist> = {
+  name: "persisted-app-store",
+  partialize: (state) => ({
+    selectedProjectId: state.selectedProjectId,
+  }),
+};