Open Source Community

A federal government community interested in source code and open source software (OSS).

Open to anyone with a .gov or .mil email address.

Join by email

To join, email with nothing in the subject and subscribe code in the body.

Community Managers

GSA | Wasington D.C.

We are a community of federal government employees and contractors interested source code and open source software (OSS). We support the implementation of the Federal Source Code Policy (FSCP) and associated technology platform

What we do

We support federal agency implementation of the FSCP. According to the FSCP, agencies are required to create their own source code policy, update acquisition language to capture new custom code, and create a source code inventory and encouraged to open sourcing a portion of the inventory.

We have a listserv with approximately 650+ agency members interested in federal software and hold an agency-wide community-of-pracitce (CoP) monthly meeting on the third Thursday of the month. Through the website and API, we facilitate aggregatation of agency source code for sharing across agencies and with the public.

Who we are

We are developers and open source experts, dedicated to helping you with any questions or concerns you may have about source code and OSS in the federal government. Curious about something regarding open source software or Ask us.

Community manager

Joseph Castle, Washington, DC

Community Conduct

When participating in this CoP, follow Etiquette Guidelines. Respect your peers, use plain language, be patient, practice constructive criticism, and stay organized. By participating in this CoP conversation, you agree to abide by the TTS Code of Conduct.

Community Conduct

The Communities of Practice are hosted by, a service of the Technology Transformation Services (TTS) within the General Services Administration (GSA). GSA is a federal agency subject to the Freedom of Information Act (FOIA) and must comply with requests for records made under FOIA. As a result, all communications made on this Communities of Practice LISTSERV are subject to release under FOIA.

When participating in this CoP, follow Community Guidelines.