nowfound

Dev tools · September 9, 2025

SwiftLake – Lightweight SQL Engine for Iceberg Tables

At Arcesium, we needed a way to run SQL-driven CRUD operations, manage slowly-changing dimensions, and handle schema evolution on our cloud data lakes—without the overhead of spinning up distributed clusters or relying on vendor-managed query services. That’s why we built SwiftLake, a lightweight open-source library that brings Apache Iceberg and DuckDB together: - Lightweight & cluster-free: Runs as a single Java service with embedded DuckDB—no distributed infra required. - Full CRUD and SCD1/SCD2 support: Reads, inserts/appends, updates, deletes, and merges with ACID guarantees.…

SwiftLake – Lightweight SQL Engine for Iceberg Tables launched on September 9, 2025 with 6 votes, #3,421 of 8,160 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.

What it does

SwiftLake: Java SQL engine built on Apache Iceberg and DuckDB for efficient lakehouse reads and writes - arcesium/swiftlake

In the maker’s words, at launch

At Arcesium, we needed a way to run SQL-driven CRUD operations, manage slowly-changing dimensions, and handle schema evolution on our cloud data lakes—without the overhead of spinning up distributed clusters or relying on vendor-managed query services. That’s why we built SwiftLake, a lightweight open-source library…

Does a similar job

all alternatives →
  • Open-source serverless security lake powered by Rust + Apache Iceberg2022 · github.com · ▲63

    Open source security data lake for threat hunting, detection & response, and cybersecurity analytics at petabyte scale on AWS - matanolabs/matano

  • DuckDB for Kafka Stream ProcessingDec 2025 · sql-flow.com · ▲77

    Hello Everyone! We built SQLFlow as a lightweight stream processing engine. We leverage DuckDB as the stream processing engine, which gives SQLFlow the ability to process 10's of thousands of messages a second using ~250MiB of memory! DuckDB also supports a rich ecosystem of sinks and connectors! https://sql-flow.com/docs/category/tutorials/ https://github.com/turbolytics/sql-flow We were tired of running JVM's for simple stream processing, and also of bespoke one off stream processors I would love your feedback, criticisms and/or…

  • DuckDB + React = SQLRooms Framework for Analytics Apps Without Backend2025 · sqlrooms.org · ▲9

    We’ve built SQLRooms, an open-source framework for creating single-node data analytics apps powered by DuckDB. It lets you build fully client-side, data-centric apps using React and DuckDB running in the browser (via WebAssembly) or in Electron. No server or backend is required — apps can work offline, preserve data privacy, and run queries on large datasets with sub-second performance. Features: - Query large datasets in browser with DuckDB (WASM) - Modular design for building composable data UIs (query editors, dashboards, notebooks, etc.) - Data privacy-preserving AI assistant that can…

  • PA
    Public Apache Iceberg datasets via a REST catalogJan 2026 · opensource.googleblog.com · ▲13

    Hi HN, I’m one of the creators of this project. We noticed that while many developers want to experiment with Apache Iceberg the "entry cost" is often high. You usually have to set up your own storage buckets, configure a catalog (like Hive), and ingest data before you can even run a single SELECT statement. We wanted to lower that barrier. We’ve hosted a production-grade Iceberg REST Catalog on BigLake with public datasets (starting with the NYC Taxi data) that anyone can query. You can point Spark, Trino, or Flink directly at the REST endpoint and start querying immediately. You do need a…

  • Bytebase 2.02023 · bytebase.com · ▲88

    Database schema change and version control for developers

  • Corral – A Serverless MapReduce Framework2018 · github.com · ▲92

    🐎 A serverless MapReduce framework written for AWS Lambda - bcongdon/corral

More dev tools this month

the category →
  • /dev/null▲484

    a social network for devs

    Dev tools · 3d ago · dev-null.sh

  • open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

    Dev tools · 28d ago · github.com

  • Contribute to reladraw/reladraw development by creating an account on GitHub.

    Dev tools · 26d ago · github.com

  • OpenBot▲362

    Grok Bot alternative: free, local, open-source, multiplayer

    Dev tools · 23d ago · openbot.run

  • Talanoa▲346

    Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

    Dev tools · 20d ago · talanoa.email

  • CoreSpeed▲332

    One MCP for everything your agents need: apps, memory, tools

    Dev tools · 28d ago · corespeed.io

Source: Show HN post ↗ · launch text quoted in part

Launched alongside, September 2025

the whole month →
  • YouMind▲1,223

    The first AI creation studio where learning meets writing

    AI · 2025 · youmind.com

  • The site hit #1 on HN about a year ago. Got enough traffic that I turned it into a proper API. What's there: - REST API — 35k products, manually filterable by category, free key, 60 req/min - CLI — npx anycrap random -c food - faker.js plugin — bundled, no API call, works offline - HuggingFace dataset — full 35k rows for ML/training https://anycrap.shop/developers

    AI · 2025 · anycrap.shop

  • I made a built-from scratch Wayland Compositor to display any GUI app* in the terminal! I think there is a lot of unexplored potential in custom Wayland compositors, a lot of really cool things you can embed existing applications into! So, I started with embedding apps into the terminal because that is the easiest input/output (output is just utf-8 and I use the great `chafa` library for that, and I just read from stdin for the input). If you have any other ideas for cool Wayland compositors, let me know. I purposedly wrote 80% the app in Typescript to appeal to the most developers and…

    Dev tools · 2025 · github.com

  • IR

    Years ago I stumbled across a basic version of this concept and it stuck with me. I knew if I was ever going to take on such a project, it would need to be flawless, but without coding experience it was just another idea that would never happen. By the end of 2024, as AI coding tools exploded everywhere, I finally had a way to make it real. I started from zero knowledge and spent months collaborating with AI agents as a learning experience. Every pixel and every function went through me. The AI translated what I asked for into code, but every decision was human. I didn't use existing OS…

    AI · 2025 · mitchivin.com

  • Ada▲910

    Your own AI data analyst

    AI · 2025 · ada.im

  • Turn Product Images into Scroll-Stopping Video Ads

    Growth · 2025 · vidau.ai