Hi Doug,
No worries. Works on Raspberry Pi 4.

The author specifies: "This script is meant to automate the many setup steps involved with configuring a Raspberry Pi 3b, 3b+, 4 or similar single board computer (SBC) running Ubuntu or Raspbian, so that it can be an Astrophotography hub using INDI, KStars, and Ekos." -> github.com/rlancaste/AstroPi3 .

Tomas

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