Hello,
I am a long-time user of DuckDuckGo and I think this engine is great.
However, I don't understand why Tails doesn't use the default .onion version of duckduckgo?
You propose it well in Tor Browser:
https://3g2upl4pq6kufc4m.onion/
I don't understand the logic of taking us out of the Tor network to do our research, when the same service is available through a Hiden Service.
Regards