diff --git a/src/src/common/generic/lib/create-url/main.ts b/src/src/common/generic/lib/create-url/main.ts
index fd50cfe..af12412 100644
--- a/src/src/common/generic/lib/create-url/main.ts
+++ b/src/src/common/generic/lib/create-url/main.ts
@@ -1,5 +1,4 @@
 import { isEmpty } from "es-toolkit/compat";
-import { mapValues } from "es-toolkit/object";
 import { trimStart } from "es-toolkit/string";
 
 import type { CreateUrlInput, CreateUrlOutput } from "./types";
@@ -14,11 +13,20 @@ export function createUrl({
 }: CreateUrlInput): CreateUrlOutput {
   const basePart =
     scheme && host ? `${scheme}://${host}${port ? `:${port}` : ""}` : "";
+
   const pathPart = path ? `/${trimStart(path, "/")}` : "";
+
   const queryPart =
     query && !isEmpty(query)
-      ? `?${new URLSearchParams(mapValues(query, (value) => String(value))).toString()}`
+      ? `?${new URLSearchParams(
+          Object.entries(query).flatMap(([key, value]) =>
+            Array.isArray(value)
+              ? value.map((v) => [key, String(v)])
+              : [[key, String(value)]],
+          ),
+        ).toString()}`
       : "";
+
   const fragmentPart = fragment ? `#${fragment}` : "";
 
   const url = basePart + pathPart + queryPart + fragmentPart;
diff --git a/src/src/common/generic/lib/create-url/types.ts b/src/src/common/generic/lib/create-url/types.ts
index bb02290..4f465e5 100644
--- a/src/src/common/generic/lib/create-url/types.ts
+++ b/src/src/common/generic/lib/create-url/types.ts
@@ -1,6 +1,8 @@
+type QueryValue = boolean | number | string;
+
 type AnyUrlInput = {
   fragment?: null | string;
-  query?: null | { [key: string]: boolean | number | string };
+  query?: null | { [key: string]: QueryValue | QueryValue[] };
 };
 
 type AbsoluteUrlInput = AnyUrlInput & {
diff --git a/src/src/isomorphic/state/hooks/use-global-state/types.ts b/src/src/isomorphic/state/hooks/use-global-state/types.ts
index 53c884a..90b04d4 100644
--- a/src/src/isomorphic/state/hooks/use-global-state/types.ts
+++ b/src/src/isomorphic/state/hooks/use-global-state/types.ts
@@ -1,8 +1,8 @@
-import type { State, StateSubscribe } from "../../types";
+import type { ReadonlyState, State, StateSubscribe } from "../../types";
 
 export type StateContainer = {
   current: State;
-  snapshot: State;
+  snapshot: ReadonlyState;
   subscribe: StateSubscribe;
 };
 
diff --git a/src/src/isomorphic/state/types.ts b/src/src/isomorphic/state/types.ts
index ecb98f7..0d24032 100644
--- a/src/src/isomorphic/state/types.ts
+++ b/src/src/isomorphic/state/types.ts
@@ -1,5 +1,7 @@
 import "client-only";
 
+import type { ReadonlyDeep } from "type-fest";
+
 export type NowState = {
   counter: number;
   timer: number;
@@ -10,6 +12,8 @@ export type State = {
   now?: NowState;
 };
 
+export type ReadonlyState = ReadonlyDeep<State>;
+
 export type StateSubscribeCallback = (state: State) => void;
 
 export type StateUnsubscribe = () => void;
diff --git a/src/src/isomorphic/{% if identity %}identity{% endif %}/hooks/use-identity/main.ts b/src/src/isomorphic/{% if identity %}identity{% endif %}/hooks/use-identity/main.ts
index ef9ad27..74caae0 100644
--- a/src/src/isomorphic/{% if identity %}identity{% endif %}/hooks/use-identity/main.ts	
+++ b/src/src/isomorphic/{% if identity %}identity{% endif %}/hooks/use-identity/main.ts	
@@ -12,5 +12,5 @@ export function useIdentity({}: UseIdentityInput = {}): UseIdentityOutput {
 
   const identity = useMemo(() => ({ user: snapshot.user }), [snapshot.user]);
 
-  return useMemo(() => ({ identity }), [identity]);
+  return useMemo(() => ({ identity: identity }), [identity]);
 }