BlogViral

Show HN: Extend UI – open-source UI kit for modern document apps We're open-sourcing 14 components & examples today for PDF, DOCX, and XLSX viewers, plus bounding box citations, file upload, e-signature, and more. It's MIT licensed and fully customizable. Demo video here: https://ift.tt/1hoP72x When we started, we tried every file viewer and document component library we could find. Unfortunately, none of them had all the functionality (and polish) that we wanted, so we ended up building our own for https://extend.ai/ . It was only ever meant to be internal, but enough customers kept asking for it that we decided to open source it. It's useful for building document processing agents, real-time user facing document intake flows, or all kinds of internal tooling. We naively thought this would be a solved problem. Turns out, making PDF/XLSX/DOCX viewers that work at scale is not trivial...we use and maintain it for Extend ourselves, so we've fixed a lot of edge case...

Show HN: HelixDB – A graph database built on object storage Hey HN, it’s been just over a year since we launched HelixDB ( https://ift.tt/xzOGTsY ), a project a friend and I started in college. It’s an OLTP graph database built on object-storage, with native vector search and full-text search (FTS). Why graph, vector and FTS? Graph databases provide a natural cognitive model for data, vectors allow for a semantic understanding of the entities and relationships in the graph, and FTS provides more specific filtering. Many AI-driven applications attempt to combine all of these functionalities by stitching together multiple disconnected systems, but even then there’s no native way to perform joins or queries that span all systems. You still need to handle this logic at the application level. Helix started as a graph DB, but we moved to a hybrid graph/vector approach after attempting to build an AI memory system, which led us down the GraphRAG and HybridRAG rabbit hole, where we would need ...

Show HN: Learn while you wait for your agents to code Hi HN, While waiting for Claude Code to finish running, It's very tempting to start another task or browse the internet. This is what happened to me so I built Foyer to try to learn about what the agents are working on instead of losing focus. Product is an early MVP and would love some feedback on this. https://ift.tt/Lckg1yU June 10, 2026 at 11:53PM

Join us for Bloomsday and Beyond on June 16: Irish literature meets transit and civic history By Danbee Song Bloomsday and Beyond brings Irish literature into San Francisco neighborhoods, connecting books, Muni and the city in motion. Celebrate Irish literature, San Francisco neighborhoods and the public works that connect us On Tuesday, June 16, 2026, join us for Bloomsday and Beyond: Celebrating Ireland, the Island of Writers. Ride with us on the L Taraval for readings from “Ulysses,” book giveaways and fun. This metro route connects the Consulate General of Ireland and the United Irish Cultural Center. Together, we will celebrate Irish ingenuity and the city of San Francisco. Check out the... Published 2026-06-09T00:00:00Z https://ift.tt/HqdilZf

Show HN: AI-native red-team for penetration testing and vulnerability research AI-native red-team workbench for authorized penetration testing and vulnerability research, with specialist agents, sandboxed tooling, evidence records, and replayable timelines. https://ift.tt/lb21Zch June 9, 2026 at 11:00PM

Getting Around San Francisco During FIFA World Cup 26™: Your Go-to Guide By Let Muni take you where you need to go. Explore the city and connect with soccer fans during FIFA World Cup 26™. Our teams at the SFMTA are here to help you enjoy FIFA World Cup 26™ festivities across the San Francisco Bay Area. Whether you’re visiting the city or a long-time local, you can count on us to get you where you want to go. Our operators at Muni are ready to get you to the city’s lively venues and local businesses. They’ll also connect you with the transit agencies that go directly to the World Cup Bay Area stadium. Our parking control officers will help keep traffic flowing and... Published 2026-06-08T00:00:00Z https://ift.tt/qVpZ51n