Grassroots Open Assistive Tech’s purpose is to document, curate, preserve, make accessible, and freely share assistive technology designs and information under open licenses, as well as providing coordination and education to affiliated communities.
We support disabled people in making their designs and builds available for public good, and in having free to use designs available to them for their own use.


Archive of DIY assistive tech information
Archived scans – Our Catalog in progress – Physical copies hosted at Prelinger Library
Upcoming Events
April 7 2026: Tune-up Tuesday, 2:30pm – 4:30pm, Disability Cultural Center
April 25 2026: Mutual Aid Swap, with bonus Tune Up action from the GOAT maintenance crew! Berkeley
May 2026: Tune-up Tuesday, 2:30pm – 4:30pm, Disability Cultural Center
June 2026: Tune-up Tuesday, 2:30pm – 4:30pm, Disability Cultural Center
June 2026: (TBD, early June) Toddler Mobility Trainer + Open Source Wheelchair build party
Past events
Oct 28 2025: Designing software for assistive tech, DIFxTech, Borealis Philanthropy (Online)
Oct 29 2025: Be Seen! at the SFDCC (in-person workshop)
Nov 2025: Catalogue and scan (San Francisco)
Nov 2025: Metadata curation (San Francisco)
Nov 2025 : Take it apart! (At The Wheelhouse, Oakland)
Feb 2026: Tune Up Tuesday (ILRCSF, San Francisco)
March 3, 2026: Tune-up Tuesday, 2:30pm – 4:30pm, Disability Cultural Center
March 9-14: GOAT with A11yhood and CREATE/U Washington at the CSUN assistive technology conference in Anaheim