YaCy is an open-source software that allows you to build your own search engine. You can either join an existing community of search engines or create your personalized search portal. There are three primary use cases available: community-driven web search that emphasizes decentralization, ensuring that all users have equal access without central control or the retention of search requests, and the ability to share an index among peers. Your YaCy setup operates independently from other users, granting you the freedom to define your own web index and initiate your own web crawl. You can also develop a search portal tailored for your intranet, web pages, or shared file systems. Imagine a scenario where the power of a search engine is distributed among numerous private computers, free from the oversight of a single corporation or entity. This is precisely the innovative approach that YaCy embodies! Additionally, with YaCy, users can collaborate and contribute to a collective search experience, enhancing the overall efficiency and relevance of search results.