They stopped August 31st, 2017 [0], however they still have several open source efforts [1] [0] https://duckduckhack.com/ https://duckduckhack.com/ [1] https:

They stopped August 31st, 2017 [0], however they still have several open source efforts [1] [0] https://duckduckhack.com/ https://duckduckhack.com/ [1] https://github.com/duckduckgo/ https://github.com/duckduckgo/