This script allows you to update (reinstall) HamClock despite the expired certificate on clearskyinstitute.com utilizing http instead of https.
On your Raspberry Pi open a terminal window. Enter the following commands into the terminal:
cd ~
curl -O https://raw.githubusercontent.com/K6SM/hamclockupdate/refs/heads/main/update-hc-rpi
chmod u+x update-hc-rpi
./update-hc-rpi