Follow the :doc:`installation instructions <../../installing/os>` for your particular OS but feel free to omit the Redis installation.
After cloning NodeBB, ensure that you run:
npm install levelup leveldown
Finally, set up a directory to store your LevelDB database, for example:
mkdir /var/level/
Run the NodeBB install, select level when it prompts you for your database. If you created the folder as above, you can leave the rest of the questions as default.