Yes, you can!
For simplicity, you’ll need a working installation of Python. If you’re on Windows, you can find the latest version on the Microsoft Store.
Then simply execute/run the following line (e.g. using Windows’ “Run” dialog through Win+R):
python -m http.server 8000 -d "C:\Path\to\unpacked\locjam6\folder"
Once done, you’ll get a console window that stays on screen.
Now visit http://localhost:8000/ in your favorite web browser and it should run out of the box. Note you might have to do a hard-reload (Ctrl+F5 or Ctrl+R) if you’ve updated files, or clear your browser cache and then reload.
To stop the server, hit Ctrl+C inside the console window or close it.