Very interesting use of Google's sparse hash. This library is used throughout the codebase: https://github.com/greg7mdp/sparsepp https://github.com/greg7mdp/spa

Very interesting use of Google's sparse hash. This library is used throughout the codebase: https://github.com/greg7mdp/sparsepp https://github.com/greg7mdp/sparsepp Also, after a quick look through the codebase, it really resembles how Algolia deals with indexes: https://www.algolia.com/blog/engineering/inside-the-algolia-engine-part-2-the-indexing-challenge-of-instant-search/ https://www.algolia.com/blog/engineering/inside-the-algolia-... And distributed search: http://highscalability.com/blog/2015/3/9/the-architecture-of-algolias-distributed-search-network.html http://highscalability.com/blog/2015/3/9/the-architecture-of... Amazing project, hopefully gets a lot of traction.