←Back to NewsAI News/Open SourcerepoOpen SourceVideoUtopia Gives Open-Source RAG a Memory of What Was True WhenUtopia is a self-hosted Rust and Postgres knowledge platform that layers RAG on top of a bitemporal knowledge graph tracking when each fact was true.SourceAlphaSignalPublishedSep 2, 2026, 7:15 AMAuthorAlphaSignal NewsroomRead1 min readUtopia is a self-hosted Rust and Postgres knowledge platform that layers RAG on top of a bitemporal knowledge graph tracking when each fact was true.Reporting is indexed from AlphaSignal. Rights remain with the original publisher and cited sources.Read original report ↗Next readsAlphaSignal · repoCozyClay Lets You Direct AI Video Shots in 3D Without Writing PromptsAlphaSignal · modelUC Berkeley's VDN-H3 Generates 14-Second Videos Faster Than You Can WatchAlphaSignal · modelCommunity LoRA Sharpens MiniMax H3 Videos Without Hosted 2K API