🛠️ All DevTools

[Other] SwiftUI components library for iOS and macOS AppLayoutsUI is an extensive SwiftUI components library designed to help you build a perfect user-interface for your iOS and macOS app in no time at all. It offers countless of reusable SwiftUI components, sections, and screens.

[Other] Prompt to production app, in Pure Python Reflex is an AI app builder that lets you create production-ready web apps entirely in Python, powered by its own open-source framework. Just connect your data and enter a prompt—it builds full-stack apps that work with any data source, API, or Python package.

[Other] Document, Design, Run Code, Test API — All in One Workspace DevScribe is a next-gen productivity tool for developers, architects, and tech writers. It unifies docs, code, and design in one offline workspace—helping you focus and build faster. Your data stays 100% safe and stored only on your system.

[API/SDK] Show HN: Open-source TypeScript SDK for sending and operating iMessages

[Other] Show HN: FlowLens – MCP server for debugging with Claude Code Hi HN,<p>We often run into this with coding agents like Claude Code: debugging turns into copy-pasting logs, writing long explanations, and sharing screenshots.<p>FlowLens is an MCP server plus a Chrome extension that captures browser context (video, console, network, user actions, storage) and makes it available to MCP-compatible agents like Claude Code.<p>You can try it here: <a href="https:&#x2F;&#x2F;magentic.ai&#x2F;flowlens" rel="nofollow">https:&#x2F;&#x2F;magentic.ai&#x2F;flowlens</a><p>Any feedback—good, bad, or brutal—is welcome.

[Other] /dev/null is an ACID compliant database

[Other] Show HN: OpenSnowcat – A fork of Snowplow to keep open analytics alive I’ve been a long-time Snowplow user and unofficial evangelizer. I have deep respect for its founders, Alex and Yali, who I met a few times.<p>What made me fall in love with Snowplow was that it was unopinionated, gave access to raw event data, and was truly open source. Back in 2013, that changed everything for me. I couldn’t look at GA the same way again.<p>Over the years, analytics moved into SQL warehouses driven by cheaper CPU&#x2F;storage, dbt, reproducibility, and transparency. I saw the need for a democratized Snowplow pipeline and launched a hosted version in 2019.<p>In January 2024, Snowplow changed its license (SLULA), effectively ending open-source Snowplow by restricting production use. When that happened, I realized the spirit of open data and open architecture was gone.<p>A week later, I forked it, I wanted to keep the idea alive.<p>OpenSnowcat keeps the original collector and enricher under Apache 2.0 and stays fully compatible with existing Snowplow pipelines. We maintain it with regular patches, performance optimizations, and integrations with modern tools like Warpstream Bento for event processing&#x2F;routing.<p>The goal is simple: keep open analytics open.<p>Would love to hear how others in the community think we can preserve openness in data infrastructure as “open source” becomes increasingly commercialized.<p>That&#x27;s it, I should have posted here earlier but now felt right.

[Other] Show HN: I built a tech news aggregator that works the way my brain does An honest to god, non-algorithmic reverse chrono list of tech news that passes my signal-to-noise tests, updated hourly.<p>A lightweight a page design as I&#x27;ve been able to keep; simple, clean, fast. No commercial features or aspirations - this is a passion project, something I&#x27;ve been fooling around with on and off for decades.<p>There&#x27;s a &quot;Top&quot; view too with an LLM edited front page &amp; summary, and categorized views for a large number of topics - see the Directory. A few more buried features to explore, but the fundamental use case is pop in, scan, exit - fast and concise.<p>Your feedback would be appreciated!

[Database] Show HN: Pg_textsearch – BM25 Ranking for Postgres I built pg_textsearch, a Postgres extension that brings proper BM25 ranking to full-text search. It&#x27;s designed for AI&#x2F;RAG workloads where search quality directly impacts LLM output.<p>Postgres native ts_rank lacks corpus-aware signals (no IDF, no TF saturation, no length normalization). This causes mediocre documents to rank above excellent matches, which matters when your LLM depends on retrieval quality.<p>Quick example:<p><pre><code> CREATE EXTENSION pg_textsearch; CREATE INDEX articles_idx ON articles USING bm25(content); SELECT title, content &lt;@&gt; to_bm25query(&#x27;database performance&#x27;, &#x27;articles_idx&#x27;) AS score FROM articles ORDER BY score LIMIT 10; </code></pre> Works seamlessly with pgvector or pgvectorscale for hybrid search. Fully transactional (no sync jobs). Preview release uses in-memory architecture (64MB default per index); disk-based segments coming soon.<p>I love ParadeDB&#x27;s pg_search but wanted something available on our managed Postgres. You can try pg_textsearch free on Tiger Cloud: <a href="https:&#x2F;&#x2F;console.cloud.timescale.com" rel="nofollow">https:&#x2F;&#x2F;console.cloud.timescale.com</a><p>Blog: <a href="https:&#x2F;&#x2F;www.tigerdata.com&#x2F;blog&#x2F;introducing-pg_textsearch-true-bm25-ranking-hybrid-retrieval-postgres" rel="nofollow">https:&#x2F;&#x2F;www.tigerdata.com&#x2F;blog&#x2F;introducing-pg_textsearch-tru...</a><p>Docs: <a href="https:&#x2F;&#x2F;docs.tigerdata.com&#x2F;use-timescale&#x2F;latest&#x2F;extensions&#x2F;pg-textsearch&#x2F;" rel="nofollow">https:&#x2F;&#x2F;docs.tigerdata.com&#x2F;use-timescale&#x2F;latest&#x2F;extensions&#x2F;p...</a><p>Feedback welcome, especially from folks building RAG systems or hybrid search applications.

[Other] Antislop: A framework for eliminating repetitive patterns in language models

[Other] Show HN: Git for LLMs – a context management interface Hi HN, we’re Jamie and Matti, co-founders of Twigg.<p>During our master’s we continually found the same pain points cropping up when using LLMs. The linear nature of typical LLMs interfaces - like ChatGPT and Claude - made it really easy to get lost without any easy way to visualise or navigate your project.<p>Worst of all, none of them are well suited for long term projects. We found ourselves spending days using the same chat, only for it to eventually break. Transferring context from one chat to another is also cumbersome. We decided to build something more intuitive to the ways humans think.<p>We started with two simple ideas. Enabling chat branching for exploring tangents, and an interactive tree diagram to allow for easy visualisation and navigation of your project.<p>Twigg has developed into an interface for context management - like “Git for LLMs”. We believe the input to a model - or the context - is fundamental to its performance. To extract the maximum potential of an LLM, we believe the users need complete control over exactly what context is provided to the model, which you can do using simple features like cut, copy and delete to manipulate your tree.<p>Through Twigg, you can access a variety of LLMs from all the major providers, like ChatGPT, Gemini, Claude, and Grok. Aside from a standard tiered subscription model (free, plus, pro), we also offer a Bring Your Own Key (BYOK) service, where you can plug and play with your own API keys.<p>Our target audience are technical users who use LLMs for large projects on a regular basis. If this sounds like you, please try out Twigg, you can sign up for free at <a href="https:&#x2F;&#x2F;twigg.ai&#x2F;" rel="nofollow">https:&#x2F;&#x2F;twigg.ai&#x2F;</a>. We would love to get your feedback!

[Other] Show HN: Nostr Web – decentralized website hosting on Nostr We built Nostr Web, a new way to publish and host websites that live entirely on the Nostr network instead of centralized servers.<p>Each website is a collection of signed, verifiable Nostr events distributed across relays—so it can’t be taken down, censored, or lost.<p>It includes: • DNS TXT records for domain-based discovery (_nweb.domain.com) • CLI publisher tool for versioned deployments (nw-publisher) • Browser extension (nw-extension) for native browsing experience • Relay v1.3.5 support for Nostr Web event kinds<p>Try the live demo: <a href="https:&#x2F;&#x2F;nweb.shugur.com" rel="nofollow">https:&#x2F;&#x2F;nweb.shugur.com</a><p>Repos: <a href="https:&#x2F;&#x2F;github.com&#x2F;Shugur-Network&#x2F;relay" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;Shugur-Network&#x2F;relay</a> | <a href="https:&#x2F;&#x2F;github.com&#x2F;Shugur-Network&#x2F;nw-nips" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;Shugur-Network&#x2F;nw-nips</a> | <a href="https:&#x2F;&#x2F;github.com&#x2F;Shugur-Network&#x2F;nw-publisher" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;Shugur-Network&#x2F;nw-publisher</a> | <a href="https:&#x2F;&#x2F;github.com&#x2F;Shugur-Network&#x2F;nw-extention" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;Shugur-Network&#x2F;nw-extention</a><p>Would love feedback from the HN community—on protocol design, relay performance, or UX ideas for improving decentralized web publishing.

[Other] Show HN: Deta Surf – An open source and local-first AI notebook Hi HN!<p>We got frustrated with the fragmented experience of exploring &amp; creating across our file manager, the web and document apps. Lots of manual searching, opening windows &amp; tabs, scrolling, and ultimately copying &amp; pasting into a document editor.<p>Surf is a desktop app meant for simultaneous research and thinking to minimize the grunt work. It’s made of two parts:<p>1) A multi-media library where you can save and organize files and webpages into collections called Notebooks.<p>2) A LLM-powered smart document which you can auto-generate using the context from any stored page, tab or entire notebook. This document contains deep links back to the source material — like a page of a PDF or timestamp in a YouTube video. Unlike Deep Research products (or NotebookLMs chat) the entire thing is editable. The user also stays in the loop.<p>With a technology like AI, context &#x2F; data is proving to be king. We think it should stay under the user’s control, with minimal lock in: where you can own &amp; export, and plug &amp; play with different models. That’s why Surf is:<p>- Open Source on GitHub - Open (&amp; Local Data): the data saved in Surf is stored on your local machine in open and accessible formats and mostly works offline. - Open Model Choice: you can choose which models you use with Surf, and can add custom &amp; Local LLMs<p>Early users include students &amp; researchers who are learning and doing thematic research using Surf.<p>Github repo: <a href="https:&#x2F;&#x2F;github.com&#x2F;deta&#x2F;surf&#x2F;" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;deta&#x2F;surf&#x2F;</a><p>Website: <a href="https:&#x2F;&#x2F;deta.surf&#x2F;" rel="nofollow">https:&#x2F;&#x2F;deta.surf&#x2F;</a>

[API/SDK] Open source API development ecosystem -https://hoppscotch.io(open-source alternative to Postman, Insomnia)

[Other] Genetic Algorithm, Particle Swarm Optimization, Simulated Annealing, Ant Colony Optimization Algorithm,Immune Algorithm, Artificial Fish Swarm Algorithm, Differential Evolution and TSP(Traveling salesman)

[Other] The modern Expo template for React Native Build production-ready React Native apps with NativeLaunch. Pre-configured with authentication, subscriptions, analytics, and beautiful onboarding. Start your mobile app journey today.

[Build/Deploy] Build and deploy fully‑managed AI agents and workflows Trigger.dev is the open source platform for building AI workflows in TypeScript. Long-running tasks with retries, queues, observability, and elastic scaling. Begin for free, invite your team, and scale without limits.

[Other] A full backend in minutes with AI, visual dev, and code. Meet Xano 2.0: The only backend that delivers the speed of AI, the clarity of visual development, and the control of code—all in one place, always in sync. Build production-grade apps in minutes, and deploy and run on secure, scalable infrastructure.

[Other] Secure internal apps powered by your API or DB Build custom business apps on top of YOUR data faster than ever. Invite your team and assign custom permissions to collaborate securely. Deploy using a single click and access source code when needed.

[Other] Lovable for Web Automation ⚡️ Chat with AI to build real web automations — from scrapers to browser bots. Slash turns your ideas into working Playwright scripts you can run, edit, or share instantly.