diff --git a/justfile b/justfile
index 848cf761..f5f7afc9 100644
--- a/justfile
+++ b/justfile
@@ -91,10 +91,9 @@ build-mgba-wasm:
 
 build-combo-rom-site:
     just _build-rom "examples/combo" "AGBGAMES"
+    gzip -9 -c examples/target/examples/combo.gba > website/agb/src/app/combo.gba.gz
 
 build-site-app: build-mgba-wasm build-combo-rom-site
-    mkdir -p website/agb/public
-    gzip -9 -c examples/target/examples/combo.gba > website/agb/public/combo.gba.gz
     (cd website/agb && npm install --no-save --prefer-offline --no-audit)
     (cd website/agb && npm run build)
 
diff --git a/website/agb/src/app/mgba/mgba.tsx b/website/agb/src/app/mgba/mgba.tsx
index 708323b0..002acb91 100644
--- a/website/agb/src/app/mgba/mgba.tsx
+++ b/website/agb/src/app/mgba/mgba.tsx
@@ -13,7 +13,7 @@ import { useController } from "./useController.hook";
 import { useLocalStorage } from "./useLocalStorage.hook";
 
 interface MgbaProps {
-  gameUrl: string;
+  gameUrl: URL;
   volume?: number;
   controls: KeyBindings;
   paused: boolean;
@@ -41,10 +41,12 @@ export interface MgbaHandle {
   buttonRelease: (key: GbaKey) => void;
 }
 
-async function downloadGame(gameUrl: string): Promise<ArrayBuffer> {
+async function downloadGame(gameUrl: URL): Promise<ArrayBuffer> {
   const game = await fetch(gameUrl);
 
-  if (gameUrl.endsWith(".gz")) {
+  const gameUrlString = gameUrl.toString();
+
+  if (gameUrlString.endsWith(".gz")) {
     const decompressedStream = (await game.blob())
       .stream()
       .pipeThrough(new DecompressionStream("gzip"));
@@ -67,13 +69,14 @@ export const Mgba = forwardRef<MgbaHandle, MgbaProps>(
       {},
       "agbrswebplayer/savegames"
     );
+    const gameUrlString = gameUrl.toString();
 
     const [state, setState] = useState(MgbaState.Uninitialised);
     const [gameLoaded, setGameLoaded] = useState(false);
 
     useEffect(() => {
       function beforeUnload() {
-        const gameSplit = gameUrl.split("/");
+        const gameSplit = gameUrlString.split("/");
         const gameBaseName = gameSplit[gameSplit.length - 1];
 
         const save = mgbaModule.current?.getSave();
@@ -90,12 +93,12 @@ export const Mgba = forwardRef<MgbaHandle, MgbaProps>(
       return () => {
         window.removeEventListener("beforeunload", beforeUnload);
       };
-    }, [gameUrl, saveGame, setSaveGame]);
+    }, [gameUrlString, saveGame, setSaveGame]);
 
     useEffect(() => {
       if (state !== MgbaState.Initialised) return;
 
-      const gameSplit = gameUrl.split("/");
+      const gameSplit = gameUrlString.split("/");
       const gameBaseName = gameSplit[gameSplit.length - 1];
 
       const save = saveGame[gameBaseName];
@@ -104,13 +107,13 @@ export const Mgba = forwardRef<MgbaHandle, MgbaProps>(
       const savePath = `${MGBA_ROM_DIRECTORY}/${gameBaseName}.sav`;
 
       mgbaModule.current?.FS.writeFile(savePath, new Uint8Array([0, 1, 2, 3]));
-    }, [gameUrl, saveGame, state]);
+    }, [gameUrlString, saveGame, state]);
 
     useEffect(() => {
       if (state !== MgbaState.Initialised) return;
       (async () => {
         const gameData = await downloadGame(gameUrl);
-        const gameSplit = gameUrl.split("/");
+        const gameSplit = gameUrlString.split("/");
         const gameBaseName = gameSplit[gameSplit.length - 1];
 
         const gamePath = `${MGBA_ROM_DIRECTORY}/${gameBaseName}`;
@@ -119,7 +122,7 @@ export const Mgba = forwardRef<MgbaHandle, MgbaProps>(
         mgbaModule.current?.setVolume(0.1); // for some reason you have to do this or you get no sound
         setGameLoaded(true);
       })();
-    }, [state, gameUrl]);
+    }, [state, gameUrl, gameUrlString]);
 
     // init mgba
     useEffect(() => {
diff --git a/website/agb/src/app/mgba/mgbaWrapper.tsx b/website/agb/src/app/mgba/mgbaWrapper.tsx
index ecbba3cc..504da4d9 100644
--- a/website/agb/src/app/mgba/mgbaWrapper.tsx
+++ b/website/agb/src/app/mgba/mgbaWrapper.tsx
@@ -60,7 +60,7 @@ const StartButtonWrapper = styled.button`
 `;
 
 interface MgbaWrapperProps {
-  gameUrl: string;
+  gameUrl: URL;
   isPlaying?: boolean;
   setIsPlaying?: (isPlaying: boolean) => void;
 }
diff --git a/website/agb/src/app/page.tsx b/website/agb/src/app/page.tsx
index 41c58c8b..0f8e833a 100644
--- a/website/agb/src/app/page.tsx
+++ b/website/agb/src/app/page.tsx
@@ -78,6 +78,8 @@ function shouldStartPlaying(isTouchScreen: boolean | undefined) {
   return !isTouchScreen;
 }
 
+const COMBO_GAME = new URL("combo.gba.gz", import.meta.url);
+
 function MgbaWithControllerSides() {
   const mgba = useRef<MgbaHandle>(null);
 
@@ -105,7 +107,7 @@ function MgbaWithControllerSides() {
           </GameSide>
           <GameDisplayWindow>
             <MgbaWrapper
-              gameUrl="combo.gba.gz"
+              gameUrl={COMBO_GAME}
               ref={mgba}
               isPlaying={playEmulator}
               setIsPlaying={setIsPlaying}