One system built on Node.js. Breakthrough web performance. Database, cache, messaging, & applications fused into one runtime. https://www.harper.fast/https://bsky.app/profile/harper.fasthttps://bsky.app/profile/harper.fast/post/3mv3tfywkcl2d9/9/26 → localhost:9926 Coincidence? Technically, yes. But it’s also Harper Day, our extremely legitimate, definitely-not-made-up holiday. This is your sign to build something with Harper. https://github.com/HarperFast/harper09 Sep 2026 15:17 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mv3tfywkcl2dhttps://bsky.app/profile/harper.fast/post/3mu5rvncfqn2eBuilt a live sports scoring app where the DB is the MQTT broker. No separate broker, no glue code, in-process ingest with real server-side timings shown on screen. Powered by Harper. Read more: www.harper.fast/resources/the-topic-is-the-record-real-time-fan-out-without-a-broker-a-bridge-and-a-cache28 Aug 2026 16:30 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mu5rvncfqn2ehttps://bsky.app/profile/harper.fast/post/3mtwb2lfk7x2mEvery network hop in your architecture has a cost: latency, complexity, failure modes, and dollars. Harper takes a different approach: put the database, cache, messaging, and application runtime in one process to remove the distance. https://www.harper.fast/resources/the-distance-problem-why-centralized-data-paths-cost-you-latency-uptime-and-money25 Aug 2026 16:40 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mtwb2lfk7x2mhttps://bsky.app/profile/harper.fast/post/3msgj6fcpwj2m🚀 Harper 5.2 is available now! Get 5–8× faster warm reads, more predictable performance under heavy writes, and more throughput per node—with fewer systems to manage. See what’s new: https://www.harper.fast/resources/harper-5-2-more-throughput-per-node-fewer-systems-around-it06 Aug 2026 16:57 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3msgj6fcpwj2mhttps://bsky.app/profile/harper.fast/post/3mqmk7ni2s32lWeb personalization is a platform decision. Architecture determines data freshness, latency, operational complexity, crawler visibility, and cost at scale. We compared five common approaches and the tradeoffs behind each: https://www.harper.fast/resources/five-architectures-for-web-personalization #SoftwareArchitecture14 Jul 2026 15:41 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mqmk7ni2s32lhttps://bsky.app/profile/harper.fast/post/3modmrubg7y2nHarper has been named a Sample Vendor in the Gartner® Hype Cycle™ for Digital Commerce, 2026 in the Front-End Cloud category. We believe the next evolution of front-end cloud is about what the runtime can do. https://www.harper.fast/resources/sample-vendor-gartner-hype-cycle-digital-commerce-202615 Jun 2026 15:43 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3modmrubg7y2nhttps://bsky.app/profile/harper.fast/post/3mlvrewbmcz2nThe citizen developer era is here, but the real question is whether AI-built apps can actually run inside the enterprise. Stephen Goldberg explains why Harper’s unified runtime, built-in governance, and deployment flexibility make it the right foundation for what comes next. buff.ly/Le96WYM https://www.harper.fast/resources/why-harper-is-the-definitive-platform-for-enterprise-citizen-developers15 May 2026 16:37 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mlvrewbmcz2nhttps://bsky.app/profile/harper.fast/post/3mlta6jmjsm2lEveryone is building agents on Harper right now. Jeff Darnton shares one strategy for coding agents that plan, build, QA, and review in parallel—with humans in control. Harper gives agents fewer systems to understand. buff.ly/qnD22Li https://www.harper.fast/resources/production-quality-at-vibe-code-velocity14 May 2026 16:24 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mlta6jmjsm2lhttps://bsky.app/profile/harper.fast/post/3mlqnmlq2jd2gThe right way to build an agent should be the easy way to build an agent. On most stacks, it isn't. Six vendors, six failure modes, six bills. Agents on Harper: a practical guide for teams shipping production agents in 2026. https://cdn.prod.website-files.com/68bf31b0ba9419cc225e840b/6a0232c8df131f184b12c1ba_Agents%20on%20Harper.pdf13 May 2026 15:47 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mlqnmlq2jd2ghttps://bsky.app/profile/harper.fast/post/3mlo3rxzwip2kWe’re going LIVE to build the ultimate river flow forecasting app. We're fusing live USGS stream gauges + snowpack data with an AI agent to predict flows based on historic records. We're also building a personal river log feature! 📝🤖 buff.ly/0MDNz4J12 May 2026 15:22 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mlo3rxzwip2khttps://bsky.app/profile/harper.fast/post/3mjmrlk6yu22kNew from Harper: rocksdb-js. → Full transaction support → Lazy range iteration → TypeScript API → Prebuilt binaries → Built-in transaction log A ground-up open source RocksDB binding for Node.js. Huge thanks to @chrisbarber.dev. https://www.harper.fast/resources/new-rocksdb-binding-for-node-js16 Apr 2026 15:57 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mjmrlk6yu22khttps://bsky.app/profile/harper.fast/post/3mjkfigiv6q2eHarper 5.0 is open source. The future of software, especially with AI agents, is a unified runtime, not a fragmented stack. Fewer layers. Better reasoning. Faster path to production. Full story ↓ buff.ly/ErGcc7t #Harper5 #OpenSource https://www.harper.fast/resources/open-sourcing-harper15 Apr 2026 17:15 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mjkfigiv6q2ehttps://bsky.app/profile/harper.fast/post/3mjf7daapjt2zHarper 5.0 is live. Our core runtime is now fully open source (Apache 2.0), with Harper Pro source-available under ELv2. Now with RocksDB + LMDB support. One platform for database, cache, messaging, and app logic—built for performance and scale. Read more: https://hackernoon.com/harper-launches-50-fully-open-source-runtime-for-building-and-deploying-cost-efficient-agents13 Apr 2026 15:41 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mjf7daapjt2zhttps://bsky.app/profile/harper.fast/post/3mj5tw73jsx2h🚀 New podcast episode with Daniel Roe, lead of the Nuxt framework. We discuss Nuxt 3, 4, the upcoming Nuxt 5, open-source leadership, and what teams should know before upgrading their apps. If you're building with Vue or Nuxt, this is a must-watch. 🎧 Watch now buff.ly/VTZo5MF #Nuxt #VueJS https://www.harper.fast/resources/maintaining-momentum-versioning-stability-the-road-to-nuxt-5-with-daniel-roe10 Apr 2026 17:29 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mj5tw73jsx2hhttps://bsky.app/profile/harper.fast/post/3mimbg45xow2jMost AI agents spend more time talking to LLMs than they need to. The fix isn't a smarter model. It's a smarter runtime. Semantic caching on Harper: same question twice? Served from the vector index. $0 LLM cost. Sub-50ms. buff.ly/fGPaA3V https://dev.to/harperfast/build-a-conversational-ai-agent-on-harper-in-5-minutes-4l403 Apr 2026 17:42 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mimbg45xow2jhttps://bsky.app/profile/harper.fast/post/3mhixwuumgs2sFrom pro drummer to open source maintainer. Trezy shares his path into software engineering, work on PixiJS, thoughts on AT Protocol + Bluesky, and why data sovereignty matters for devs. Great insights for builders 👇 https://www.harper.fast/resources/inside-pixijs-at-protocol-and-modern-game-development-with-trezy-who #OpenSource #GameDev #ATProtocol20 Mar 2026 16:49 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mhixwuumgs2shttps://bsky.app/profile/harper.fast/post/3mgur4wjah22sYour tech stack wasn't built for AI coding agents. A unified runtime was. Start every project with npm create harper@latest #aicodingagent #claudecode #agenticengineering #unifiedruntime #harperdb #fullstackdev #devtools #vibecoding12 Mar 2026 15:54 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mgur4wjah22shttps://bsky.app/profile/harper.fast/post/3mg67futnvq2zWhat if the toughest part of agentic engineering wasn’t the model, but deployment? With Harper’s unified runtime and declarative design, AI goes from idea to live system without the human wiring. The last-mile problem is solved. 👇 https://www.linkedin.com/pulse/last-mile-problem-ai-development-just-solved-harperfast-54gdc03 Mar 2026 16:39 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mg67futnvq2zhttps://bsky.app/profile/harper.fast/post/3mfrlj3rvd52jThe build-your-own era is here. In 3 days, an AI ops assistant replaced $2400/month in SaaS for under $100/month. AI thrives on declarative backends (config.yaml, schema.graphql, resource.js). That's Harper. Build > Buy. buff.ly/QrJMnQd #VibeCoding #AgenticAI https://buff.ly/QrJMnQd26 Feb 2026 16:11 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mfrlj3rvd52jhttps://bsky.app/profile/harper.fast/post/3mfadyw4kls25Open source doesn’t maintain itself. We talked with Jordan Harband (@LJHarb), TC39 member, NVM maintainer, and 500+ NPM packages, about JavaScript standards, dependency security, and the realities of OSS. buff.ly/GlXr9pz #OpenSource #JavaScript #WebDevelopment19 Feb 2026 19:41 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mfadyw4kls25https://bsky.app/profile/harper.fast/post/3mbu2ki72pb2o🎙️ New Podcast Episode with Debbie O’Brien We’re excited to share our latest SELECT * Podcast episode featuring Debbie O’Brien, a leading voice in testing, and open source. Watch the full episode here: buff.ly/Vdv53Zi https://www.harper.fast/resources/open-source-cycling-and-what-s-next-with-debbie-o-brien07 Jan 2026 18:04 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mbu2ki72pb2ohttps://bsky.app/profile/harper.fast/post/3mbrpp6bixr2u🎉 We’re honored! Harper has been named to Built In’s 2026 Best Places to Work in Colorado — including Best Startup and Best Overall. Huge thanks to the Harper team for making this possible 💜 buff.ly/WnRWVHJ06 Jan 2026 19:45 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3mbrpp6bixr2uhttps://bsky.app/profile/harper.fast/post/3ma4qbjp74g22In our latest podcast, Austin Akers sits down with Ivan Hudson, to break down how modern teams can combine real-time data, edge computing, and machine learning to build smarter, faster applications. 👉 Full video on our website: https://www.harper.fast/resources/turn-browsing-into-buying-with-edge-ai #Harper #AI #EdgeComputing16 Dec 2025 18:04 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3ma4qbjp74g22https://bsky.app/profile/harper.fast/post/3m7sr7kvspx2oIf you’re using MQTT for IoT, edge, or real-time data, you know that the protocol is simple, but the infrastructure often isn’t. See how Harper runs MQTT natively, can persist messages, and run functions, all with no extra services. 👉 buff.ly/zXKgYkV https://www.harper.fast/resources/mqtt-the-easy-way12 Dec 2025 18:54 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3m7sr7kvspx2ohttps://bsky.app/profile/harper.fast/post/3m7qhwofklo2aDon't want to stitch together AWS IoT Core + Lambda + DynamoDB? Harper’s unified platform delivers the same capabilities but without the complexity tax. 🔗 buff.ly/AfgssdK #AWS #IoT #DevExperience https://www.harper.fast/resources/harper-vs-aws-iot-core-why-unified-architectures-win-for-real-time-systems11 Dec 2025 21:03 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3m7qhwofklo2ahttps://bsky.app/profile/harper.fast/post/3m7l3msaez22iWhat if your home responded to gestures rather than voice commands? 👋💡 Harper Hack runner-up @devdevcharlie.com built a gesture-powered smart light system using Harper + Gemini + LIFX . Wild glimpse of a potential future. 🔗 https://www.harper.fast/resources/is-this-the-future-of-smart-homes09 Dec 2025 17:39 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3m7l3msaez22ihttps://bsky.app/profile/harper.fast/post/3m7b2rsnv5r2aSpin up Harper + Grafana locally in seconds. Single-node & 3-node cluster, fully monitored and ready to build fast. 👉 buff.ly/EcffISp https://www.harper.fast/resources/harper-docker-grafana-local-setup-guide05 Dec 2025 17:57 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3m7b2rsnv5r2ahttps://bsky.app/profile/harper.fast/post/3m73zx6de3j2u🎙️ Meet Trent, a HarperHack runner-up using Harper to build ConvoIQ, an AI business app to streamline workflows and build smarter dashboards. Catch this interview in our latest podcast episode 👉 buff.ly/GpgiIGW #HarperFast #Podcast #HarperHack #Developers https://www.harper.fast/resources/building-an-a-i-tool-in-3-days03 Dec 2025 17:59 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3m73zx6de3j2uhttps://bsky.app/profile/harper.fast/post/3m6mrkghmxz2sHappy Thanksgiving! 🦃🍁 We cooked up a Harper Thanksgiving Game using Google Antigravity, built on Harper, and deployed with Harper Fabric. Enjoy! Play: buff.ly/IUJ7yjo Blog: buff.ly/ItnARew Make it to the end? Screenshot it! https://happy.thanksgiving.harperfabric.com27 Nov 2025 16:19 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3m6mrkghmxz2shttps://bsky.app/profile/harper.fast/post/3m664o3odcw2gIn our Season 4 premiere of the SELECT* podcast, we sit down with our Harper Hack '25 winners Josh and Colin to discuss their hackathon winning app Mell. 🎧 Watch the full episode on the Harper website: https://www.harper.fast/resources/building-a-smarter-311-app #HarperHack2025 #Harper #AI #Developers #Innovation21 Nov 2025 20:28 +0000at://did:plc:vmfulfy3of6pgslv5xhpdkn7/app.bsky.feed.post/3m664o3odcw2g