Hammerspoon is based on Mjolnir by Steven Degutis, which is based on Hydra by Steven Degutis.
The extensions included in Hammerspoon were written by:
- Steven Degutis
- Aaron Magill
- Chris Jones
- Peter van Dijk
- Linell Bonnette
- Kepler Project
- Enrique García Cota
- Szymon Kaliski
The Hammerspon icon was provided by Juerd Waalboer