Generate a graph and a map for runs taken from Garmin or Polar running watch fit or tcx formatted files in a local, secure, cross-platform and reliable manner.

A front-end for garmin-connect

Runview lets you load and view Garmin watch file data.

Sunrise calculations with a gui interface.

GTK front-end for Steve Moshier's Astronomy Ephemeris Program - aa - astronomical almanac - calculate planet and star positions

Calculate celestial positions.

Calculate sunrise and sunset times

Calculate date of easter using gtk

Toy Rust app to calculate the date of Easter

Visualize, summarize and analyze running activities from Garmin devices.

Baseball trajectory visualization

Calculate the trajectory of a baseball with air drag