Sarchy is not really a newcomer. It is based on the open source search engine YaCy, which is already 8 years old. YaCy is a distributed peer-to-peer search engine written by a team of German developers. The source code is hosted on GitHub. According to its web site, « you don’t need to install external databases or a web server, everything is already included ».
To be honest, I tested a YaCy implementation some years ago and I wasn’t impressed at the time. But *this* time it’s somewhat different. This implementation of YaCy *is* very interesting.