ASCOM-INDI ESP32 Wifi focuser
ESP32 mySQM+ Sky-Meter/Weather Station with loads of features
Dew Controller Feature Rich
Cross-platform open source software for astrophotography
C API to control NexStar compatible telescopes
A planetarium software that shows a 3D simulation of the night sky
Open source observatory control software
HSPI does parallel capture and sky surveys.
Cross platform Perl API to control NexStar compatible telescopes