Sudo room is a room with a bunch of computer hardware in it much of it idle and a community of people many of them not idle many of whom like free access to information and privacy-respecting technology and social institutions and dislike pervasive surveillance by state and corporate actors and oligopolistic private control of vital public resources.
YaCy is a free distributed search engine, built on principles of peer-to-peer (P2P) networks. All YaCy-peers are equal and no central server exists. It can be run either in a crawling mode or as a local proxy server, indexing web pages visited by the person running YaCy on his or her computer. (Several mechanisms are provided to protect the user's privacy.)

Access to the search functions is

 by a locally running web server which provides a search box to enter search terms, and returns search results in a similar format to other popular search engines.