diff --git a/frontends/nextjs/src/components/Level3.tsx b/frontends/nextjs/src/components/Level3.tsx
new file mode 100644
index 000000000..2c617a031
--- /dev/null
+++ b/frontends/nextjs/src/components/Level3.tsx
@@ -0,0 +1 @@
+export { Level3, type Level3Props } from './level/levels/Level3'
diff --git a/frontends/nextjs/src/components/Level4.tsx b/frontends/nextjs/src/components/Level4.tsx
new file mode 100644
index 000000000..2475b1e88
--- /dev/null
+++ b/frontends/nextjs/src/components/Level4.tsx
@@ -0,0 +1 @@
+export { Level4, type Level4Props } from './level/levels/Level4'
diff --git a/frontends/nextjs/src/hooks/useLevelRouting.ts b/frontends/nextjs/src/hooks/useLevelRouting.ts
new file mode 100644
index 000000000..cbab7c8a1
--- /dev/null
+++ b/frontends/nextjs/src/hooks/useLevelRouting.ts
@@ -0,0 +1 @@
+export { useLevelRouting, type LevelRouting } from './data/useLevelRouting'