I've built the latest images for uLisp 4.7b. They include my Lisp library (which is a superset of the library provided, along with some graphics support and a load utility).

To install these, unplug all cables and power off the PicoCalc. Then, press the BOOTSEL button on the Pico (the only button on the Picos) while plugging a micro-USB cable into the Pico. A drive should pop up - copy the image to the drive; once it's finished copying, the drive should go away and you can unplug and power on the PicoCalc.

• Pico @ 133MHz
• Pico @ 200MHz
• Pico 2W @ 150MHz
• Pico 2W @ 200MHz
• Pico 2W @ 250MHz
• Pico 2W (RISC-V) @ 200MHz