Typora - A minimal Markdown reading & writing app.
Gather Town - Spatial video-chat worlds for work and play
Dillinger - joemccann has 95 repositories available. Follow their code on GitHub.
SpatialChat - Virtual space platform to help remote teams collaborate.
StackEdit - Full-featured, open-source Markdown editor based on PageDown, the Markdown library used by Stack Overflow and the other Stack Exchange sites.
Teamflow - Feel like a team again with your own virtual office