Sadly he deleted his Reddit account, meaning that the story of how he got Nokolisp working bare-metal on a Nokia Communicator is lost to history. All the post headers are there, just marked
You probably only need access to DOS on your Communicator. To achieve this you need to create a file B:\NOKIA\INSTALL.BAT and reboot the communicator. From this batch file you can call Nokolisp. If "INSTALL.BAT" exits the normal GEOS shell will start.
https://news.ycombinator.com/item?id=33517797