This is the Military Open Source Software (Mil-OSS) Website, for discussion about the military and open source software (OSS).

View My GitHub Profile

Welcome to Mil-OSS!

Welcome to the (new and updated) Mil-OSS website This site is for discussing the relationship of open source software (OSS) and the military. We focus on the U.S. military, the US Department of Defense (DoD).

Please join the Mil-OSS mailing list!

Also see the GitHub Mil-OSS projects site, where various projects are available.

Key materials

What happened to

At one time we (the original Mil-OSS group) were hosted on, but that domain was accidentally allowed to lapse and picked up by someone else. We don’t know who controls the domain now. So we’ve restarted our website here on You can verify this by noticing that our Mil-OSS mailing list has been operated continuously, but now refers to instead of We are very sorry for the inconvenience.

Modifying the site

If something needs to be added to this site, please help us! See the Instructions on modifying this site on how to create proposed modifications.