lake exe cache get # if your game depends on mathlib
lake build
```
@ -118,7 +118,7 @@ When modifying the game engine itself (in particular the content in `lean4game/s
```bash
cd NNG4
export LEAN4GAME=local
lake update
lake update -R
lake build
```
This causes lake to search locally for the `GameServer` lake package instead of using the version from github. Therefore, when you `lake build` your game, it will rebuild with the modified `GameServer`.