Community Schools Offer More Than Just Teaching

By Alina Tugend from NYT Education https://ift.tt/KeR1Gth

Show HN: I built a fun AI tour guide into Google Street View https://ift.tt/jZFah3p

Show HN: I built a fun AI tour guide into Google Street View I love culture + travel, and one of my favorite pastimes is dropping into random streets on Google Street View. I just LOVE getting a tiny snippet into how people live, the architecture, and discovering hidden corners of places I'll probably never visit. I'm kinda weird like that. When AI came along, I started asking it to explain what I was looking at - and I learned a ton. I couldn't stop using this combo. So I built Streetwhip. It's kinda like reverse Geoguessr - instead of guessing where you are, you get educated about places as if you had a smart local guide with you. What used to be just "some random street in Buenos Aires" becomes a rich learning adventure about Argentine architecture, why things look the way you are, and stuff about the history and way of life. I've been having so much fun with it. I LOVE when I'm on an ordinary looking street and suddenly I find out there's a WILD historic story behind why the architecture is a certain way. A couple of tips: - make sure you log in! If you don't, things aren't really real-time (I had to do this because Street View's API costs can get expensive and this is just a fun hobby project for me). - play around with the categories - they're fun. I'm curating in more places over time. - the search is not perfect - when it works its magical (totally llm-driven). But sometimes it isn't. - don't use this on mobile, it kinda sucks Would love to get your thoughts on the concept and what you could see it turn into! :) P.S. Oh and one of my favorite features: radio! You get a live radio from a stream in the country (please mute it if you get annoyed - but I promise you it makes things a whole lot more immersive) https://streetwhip.com/ May 1, 2025 at 12:21AM

Show HN: Jarvis-AI, an AI Agents network that kills admin work in big corporate https://ift.tt/x3tv9pe

Show HN: Jarvis-AI, an AI Agents network that kills admin work in big corporate Cheers HN, We're Oli and Pascal, two friends from ETH Zürich. We built a network of AI Agents for large organisations, that finally gets rid of all admin work for employees. Current features are: - Schedule, move or cancel meetings (via Google Calendar or locally) - Dynamically adapt meetings according to stakeholders’ availabilities (internal communication of the agents) - Summarize incoming mails (via Gmail) - Create a project plan (command: plan XXX = [project description]) including stakeholders, timeline and cost estimate - Plan, assign and view tasks - Do all of the above via audio We believe that the network point is the core of the product. If you're planning a new project, Jarvis should not only give ideas but also propose whom to work with based on the context information of all the other Jarvises in the company. Instead of sending mails, information flow happens between the Agents and the audio feature makes it super natural to speak to your Jarvis. This is very early stage, so any advice/feedback is much appreciated :) https://ift.tt/rxI72Ww May 1, 2025 at 12:19AM

Show HN: The $300K DevinAI Secret is Now Open Source https://ift.tt/gJ1vQud

Show HN: The $300K DevinAI Secret is Now Open Source You’ve probably heard of DevinAI’s new release, DeepWiki-a tool that analyzes GitHub repos and generates AI-powered documentation. The catch? It reportedly cost $300K in compute and is locked behind a paywall. I thought: why not make this accessible to everyone? Introducing Open DeepWiki: An open-source, self-hosted alternative that turns any GitHub repo into a comprehensive wiki with AI-generated docs, architecture diagrams, and code explanations. No cloud lock-in, no paywalls, just local, private analysis. Features: AI-generated documentation (supports GPT, Gemini, and local models) Visual diagrams (using Mermaid.js) Codebase Q&A with RAG-powered AI Works with private repos, runs entirely on your machine Repo: https://ift.tt/WdvxTyC https://ift.tt/WdvxTyC April 30, 2025 at 09:07PM

Show HN: Beatsync – perfect audio sync across multiple devices https://ift.tt/4jpyqQm

Show HN: Beatsync – perfect audio sync across multiple devices Hi HN! I made Beatsync, an open-source browser-based audio player that syncs audio with millisecond-level accuracy across many devices. Try it live right now: https://ift.tt/k98pief The idea is that with no additional hardware, you can turn any group of devices into a full surround sound system. MacBook speakers are particularly good. Inspired by Network Time Protocol (NTP), I do clock synchronization over websockets and use the Web Audio API to keep audio latency under a few ms. You can also drag devices around a virtual grid to simulate spatial audio — it changes the volume of each device depending on its distance to a virtual listening source! I've been working on this project for the past couple of weeks. Would love to hear your thoughts and ideas! https://ift.tt/IqEghOj April 29, 2025 at 11:02PM

Show HN: Dish – A simple HTTP and TCP endpoint monitoring tool (written in Go) https://ift.tt/9ivpFUj

Show HN: Dish – A simple HTTP and TCP endpoint monitoring tool (written in Go) Last month we posted about dish and shared the repo. Since then we have been working on a blog post showing it off in a bit more detail. You can find it in the link! https://ift.tt/m7GPb0N April 29, 2025 at 09:58PM

Show HN: Infrabase – Prompt-Ops for AWS https://ift.tt/M8z7y4K

Show HN: Infrabase – Prompt-Ops for AWS We too at first thought that letting an LLM manage your AWS account must be a bad idea. What could possibly go wrong?? However we couldn’t resist building it, and when we did, we were surprised how much it can do even in plain vanilla form, which currently is just the ai-sdk frontend with some aws sdk code generation (inspared by aws-mcp). We all but stopped using the AWS console internally and switched to Infrabase - a lot of the time it’s much faster to prompt than to click around in AWS console, especially for things that involve multiple steps, IAM roles, etc. So we started to think of making a publicly-launchable product out of it. Some of the things that were missing: - Auth - Some form of checking / validation of the generated aws-sdk code - OIDC or cloudformation template instead of keys to connect AWS accounts - Support more infra tools, not just AWS (datadog, github, sentry, …) - User actions for tool use / explicit approval of risky operations - Export to Terraform / OpenTofu But then we thought, the only thing that is really missing is auth; the rest of the list would still be a blocker for many people, but not for everyone. So we shipped auth and here we are - perhaps someone is crazy enough to try it as-is and sharing your thoughts! https://infrabase.co April 29, 2025 at 02:19AM

Show HN: ProKZee – An Open-Source Network Security Tool Written in Go https://ift.tt/tCgNswG

Show HN: ProKZee – An Open-Source Network Security Tool Written in Go Hi HN! After several months of work, I'm excited to share ProKZee, a free and open-source network security tool built with Go and React using Wails framework. ProKZee allows developers, security researchers, and penetration testers to intercept, inspect, and modify HTTP/S traffic — similar to tools like Burp Suite, OWASP ZAP, and Caido — but with a fast native UI, modern UX, and some unique features. https://ift.tt/Y2JgLZR https://ift.tt/Y2JgLZR April 29, 2025 at 01:11AM

Show HN: Zotero-MCP – Connect Your Research Library with Your AI Assistant https://ift.tt/XbDG7yV

Show HN: Zotero-MCP – Connect Your Research Library with Your AI Assistant Hi all! I forgot to share my project here, but since it just got over 1.2k calls on smithery, I figured that people here may be interested in giving it a try! Essentially it allows you to easily connect your zotero library to any LLMs through a MCP client, enabling the LLMs to read the papers that you collected, your notes, and the annotations - and it works both on your local and cloud library. Check this out! I would love to hear your feedback. :) https://ift.tt/nBDUPvc April 29, 2025 at 12:06AM

Show HN: Announcing Nest2D.dev: Open-Source Server-Side Nesting for DXF https://ift.tt/p6yH0ub

Show HN: Announcing Nest2D.dev: Open-Source Server-Side Nesting for DXF https://ift.tt/HfEishx April 27, 2025 at 11:39PM

Show HN: Start working in AI research by using these project ideas from ICLR2025 https://ift.tt/ePhT42j

Show HN: Start working in AI research by using these project ideas from ICLR2025 https://ift.tt/GTmdJ37 April 27, 2025 at 10:41PM

Show HN: Flow.diy – a super duper simple flowchart maker https://ift.tt/VnwiaNy

Show HN: Flow.diy – a super duper simple flowchart maker https://www.flow.diy April 28, 2025 at 12:46AM

Show HN: Daily Jailbreak – Prompt Engineer's Wordle https://ift.tt/uJ6kRaC

Show HN: Daily Jailbreak – Prompt Engineer's Wordle I created a daily challenge for Prompt Engineers to build the shortest prompt to break a system prompt. You are provided the system prompt and a forbidden method the LLM was told not to invoke. Your task is to trick the model into calling the function. Shortest successful attempts will show up in the leaderboard. Give it a shot! You never know what could break an LLM. https://ift.tt/Vf2Fqw0 April 28, 2025 at 12:02AM

Show HN: Gemini Document Processor – Generate Th Summaries from PDF/ePub with AI https://ift.tt/ZvMI6cS

Show HN: Gemini Document Processor – Generate Th Summaries from PDF/ePub with AI Hello HN! I'd like to share Gemini Document Processor, an open-source tool I've developed. This tool uses Google's Gemini AI (their latest API) to create high-quality Thai language summaries from PDF and EPUB files. Key features include: - Support for both PDF and EPUB files - Intelligent chunking for efficient Gemini API processing - Automatic image extraction from documents - Direct integration with Obsidian (export directly to vault) - Smart retry system when errors occur (switches models/increases timeouts) - Real-time progress tracking via web interface I built this tool because I needed to read many English documents and wanted detailed summaries in Thai. If you frequently read long documents or want to build a knowledge base from multiple sources, this tool could save you significant time. The output is a well-formatted Markdown file with images and metadata, ideal for storing in Obsidian, Notion, or other PKM systems. Try it by cloning the repo and running it with Python (requires a Google Gemini API key). Feedback, suggestions, and contributions are very welcome! https://ift.tt/0UsMIFm April 26, 2025 at 06:20PM

Show HN: Install CLI Apps via Plain HTTP – No Docker, No Binaries, Just Curl https://ift.tt/HcB52vY

Show HN: Install CLI Apps via Plain HTTP – No Docker, No Binaries, Just Curl Tired of bloated installers and complex DevOps pipelines? I built PPORT — a terminal-based messenger — to demo a crazy simple idea: 1. Instant CLI delivery over HTTP 2. Just curl or irm, nothing else 3. TypeScript on the fly via Deno 4. Live deployment without Docker or builds How it works: Visit https://pport.top Run one command (curl -fsSL pport.top | sh) PPORT streams scripts and source files dynamically based on your client (curl, browser, Deno) No packaging. No compiling. No friction. Source on GitHub: https://ift.tt/aQtTApX Curious what else could be built with this approach? Would love to hear your ideas. https://pport.top April 26, 2025 at 10:21PM

Show HN: Rocal UI – A simple template engine with Rust https://ift.tt/KSsfHQ1

Show HN: Rocal UI – A simple template engine with Rust https://ift.tt/7d1m5ek April 26, 2025 at 11:56PM

Show HN: AgenticSeek – Self-hosted Manus alternative https://ift.tt/MTJjIx4

Show HN: AgenticSeek – Self-hosted Manus alternative I’ve spent the last two months building AgenticSeek, a privacy-focused alternative to cloud-based AI tools like ManusAI. It runs entirely on your machine—no API calls, no data leaks. Why AgenticSeek? Optimized for local LLMs (developed mostly on an RTX 3060 running deepseek r1 14b). Truly private: All components (TTS, STT, planner) run locally. More responsive than alternatives (we respond fast to issues + active Discord). Designed to be fun—think JARVIS-like voice control, multi-agent workflows, and a slick web UI. Current Features: Web browsing (research + form filling), code write/fix, file management/search. Planning capabilites to use multiple agents for complex task. Is it stable? Prototype-stage—great for tinkerers. Hoping to get feedback! https://ift.tt/DLJ4Xg7 April 26, 2025 at 10:53PM

Show HN: Lucidia, a WebGL visualizer inspired by Drempels https://ift.tt/yobm4ZX

Show HN: Lucidia, a WebGL visualizer inspired by Drempels Made with ChatGPT, open source at https://ift.tt/BpEIVx0 https://ift.tt/pe0A1Lw April 26, 2025 at 12:28AM

Show HN: Claude Code with GUI and Block Based Prompt Editor (MIT) https://ift.tt/3rQa1WX

Show HN: Claude Code with GUI and Block Based Prompt Editor (MIT) https://ift.tt/AWzo48Z April 25, 2025 at 10:28PM

Show HN: GitNote- Online MD note editor that syncs to GitHub https://ift.tt/tBrQa8O

Show HN: GitNote- Online MD note editor that syncs to GitHub https://ift.tt/0JcLmd9 April 25, 2025 at 01:25AM

Show HN: I reverse engineered top websites to build an animated UI library https://ift.tt/EnVHWkp

Show HN: I reverse engineered top websites to build an animated UI library Looking at websites such as Clerk, I began thinking that design engineers might be some kind of wizards. I wanted to understand how they do it, so I started reverse-engineering their components out of curiosity. One thing led to another, and I ended up building a small library of reusable, animated components based on what I found. The library is built in React and Framer Motion. I’d love to hear your feedback https://reverseui.com April 24, 2025 at 11:17PM

Show HN: Document agent example that can parse and chat over unstructured data https://ift.tt/7J1sy5i

Show HN: Document agent example that can parse and chat over unstructured data Hi all, Dapr maintainer here. We've added a new example that shows how you can build a conversational agent that can upload, parse and understand complex documents, while retaining long-term memory. The example also shows how the agent can upload the file to multiple storage providers. Would be great to get your feedback. https://ift.tt/NbwV1k2 April 24, 2025 at 12:16AM

Show HN: Body Controlled 3D Dino Game https://ift.tt/8ugf5Mi

Show HN: Body Controlled 3D Dino Game Hey HN, I am Niko. I've built this 3D Dino Game In browser using tech like three.js and MoveNet (tensorflow). Basically, it's a normal 3D dinosaur game with a twist: you need to actually perform actions irl to avoid obstacles. Duck to crouch, jump to jump, raise left hand - go left, raise right hand - go right. Game is using your phone/laptop camera to track your body movements and perform in-game actions. PS. Game is 100% client side and I don't record/track/use/save any of your data Hope you find it worth playing. (better play on PC) It's a 100% FREE browser game with no login! Please feel welcome to DM feedback or reply or anything! https://ift.tt/W5uPhv0 April 23, 2025 at 02:58PM

Show HN: Durable Python Workflows https://ift.tt/3RqZEU5

Show HN: Durable Python Workflows https://ift.tt/NUw0o1L April 23, 2025 at 04:11AM

Show HN: Dosidicus – A digital pet with a simple neural network https://ift.tt/x4vZ6NH

Show HN: Dosidicus – A digital pet with a simple neural network https://ift.tt/Ez8OcT0 April 23, 2025 at 01:36AM

Show HN:[Opensource] AIgr.id–Polycentric Infrastructure for Open and Plural AI https://ift.tt/zQt5Zwy

Show HN:[Opensource] AIgr.id–Polycentric Infrastructure for Open and Plural AI Hey HN! I'm Kanishka Nithin, founder of AIGr.id ( https://www.aigr.id ). We’re building AIGr.id — a polycentric network of independent, modular AI that can coordinate, exchange data, and compose into higher-level intelligence — all within a decentralized and plural ecosystem. Rings collective intelligence? In simpler terms: We’re trying to make it possible for people to produce, remix, operate, distribute and consume AI systems the way we use the internet— openly, collaboratively, and without needing to centralize everything into one mega-model owned by one mega-entity. Just like internet of intelligence. Today’s AI landscape is: Centralized, resource-heavy systems demand vast funding, compute, and talent—excluding much of the world. Controlled by a few powerful actors prioritizing profit over public good. Participation is limited, deepening inequality in AI benefits. Fragmented and siloed, with no open protocols for AI coordination We believe it's time to reimagine AI as collective intelligence, as shared commons — poly-centric, collaborative, composable, inclusive, and guided by values beyond profit. What’s different about our approach is that we’re not trying to build “the one true model” — we’re trying to make it easier for people to build, remix, run, and govern their own AI systems, together. We want a world where AGI doesn’t have to be monolithic — where different models, agents, and collectives can evolve side by side, coordinate, and even argue if they need to. Plural, by design. At the core of AIGr.id is OpenOS.AI, a distributed AI operating system. It is a full stack AIOS that spans everything from low-level compute orchestration to higher-level cognition, coordination, governance and economic policy. Think of it as a programmable substrate for building and running decentralized AI systems — across any infrastructure, in any topology. Developers can use shared protocols, primitives, and templates to compose AI systems — models, agents, cognitive workflows — and plug them into running grids. These grids can be public, private, federated, or even permissionless. Each grid can maintain its own sovereignty (values, rules, trust mechanisms), but still remain interoperable with others. It's designed for a world where we expect many intelligences to coexist, rather than one model to rule them all. We’re in beta and will be kicking off more extensive scale testing during our upcoming testnet phase. If this scratches an itch for you, or just want to jam on open systems — we’d love your feedback. If you're interested in joining the testnet, you can join our discord @ https://ift.tt/aJwp2RW — we’d be excited to have you involved early. Docs, GitHub, and the paper are all linked at https://www.aigr.id Curious what you think — critiques, weird use cases, edge cases, counterpoints — all welcome. Our own background is what pushed us into this problem. Before this, we were a 4-person crew running one of the largest real-time AI inference workloads in India. We were doing around 500K inferences/sec across 80–90 models simultaneously, supporting 35+ public-sector use cases — mostly video analytics. We were operating across federated and private infrastructure in real time, processing millions of frames per second. We didn’t rely on cloud providers or commercial frameworks. Our market was distorted by deprioritized infrastructure investment and choosing to grow within our earnings means the only way to survive was by being ruthlessly efficient: creating frameworks that automated end to end production, operation, distribution and maintenance life cycle of AI -- everything at scale reliably without or with minimal human intervention — so four of us could actually live our lives, too. So in a way, AIGr.id was born out of necessity. It's the system we wish we had — one that treats intelligence as something modular, networked, composable, orchestratable, shareable, and governable – in a collective way. https://www.aigr.id April 22, 2025 at 11:13PM

Show HN: Prompt Coded 3D Asteroids https://ift.tt/NG37WEl

Show HN: Prompt Coded 3D Asteroids https://ift.tt/v1Z2xD4 April 22, 2025 at 04:25AM

Show HN: ArTok is TikTok for research papers https://ift.tt/kerUvKb

Show HN: ArTok is TikTok for research papers Hello everyone! I always found it hard to find new research papers outside of my usual bubble. I thought a random feed (with no recommendation algorithms) might be a fun way to explore. But I also didn’t want to waste time on completely unrelated stuff — so the idea of a fast, swipeable format came to mind. Wikitok was a real inspiration! But Arxiv and Open Review APIs weren’t as robust as Wikipedia, so I pulled the papers into a Postgres backend. Right now, I’ve indexed papers from a few recent ML conferences to see if this might be useful for others too. No signups required and it’s totally free. You can mark your favorites and add text annotations, which are saved on your device. Would love to hear your feedback! https://artok.app April 22, 2025 at 12:43AM

Show HN: Open Codex – OpenAI Codex CLI with open-source LLMs https://ift.tt/No6KMx2

Show HN: Open Codex – OpenAI Codex CLI with open-source LLMs Hey HN, I’ve built Open Codex, a fully local, open-source alternative to OpenAI’s Codex CLI. My initial plan was to fork their project and extend it. I even started doing that. But it turned out their code has several leaky abstractions, which made it hard to override core behavior cleanly. Shortly after, OpenAI introduced breaking changes. Maintaining my customizations on top became increasingly difficult. So I rewrote the whole thing from scratch using Python. My version is designed to support local LLMs. Right now, it only works with phi-4-mini (GGUF) via lmstudio-community/Phi-4-mini-instruct-GGUF, but I plan to support more models. Everything is structured to be extendable. At the moment I only support single-shot mode, but I intend to add interactive (chat mode), function calling, and more. You can install it using Homebrew: brew tap codingmoh/open-codex brew install open-codex It's also published on PyPI: pip install open-codex Source: https://ift.tt/e8MK4qv https://ift.tt/e8MK4qv April 21, 2025 at 11:27PM

Show HN: BioLight – Passive entropy engine: raw randomness and 0 post-processing https://ift.tt/U0JrluO

Show HN: BioLight – Passive entropy engine: raw randomness and 0 post-processing BioLight is a new kind of entropy engine. It passively accumulates entropy over time, from volatile raw inputs, filtering only the statistically elite samples. No hashing, no whitening, no compression (still 7.9+ Shannon entropy). Entropy is stored and exported in raw form, transparently. Designed to run indefinitely, grows stronger and purer over time, and be verifiable by anyone. Released under the Ladaxia_Public_License. Open to all feedback: scientific and practical. Github: https://ift.tt/r3oY2CX Contact: ladaxia@proton.me https://ift.tt/r3oY2CX April 21, 2025 at 10:54PM

Show HN: TikTrotter – TikTok but for obscure travel trivia to beat doomscrolling https://ift.tt/qW1gK2L

Show HN: TikTrotter – TikTok but for obscure travel trivia to beat doomscrolling I'm trying to stop doomscrolling social media, so I made a website to help me. I'm a huge traveler so I made a website that shows infinitely-scrolling obscure locations with interesting trivia in a TikTok-like manner. I've been discovering a lot of cool places in the world and dropped my social media time a lot. The website is 100% free, no ads and no sign-up. Check it out if interested, I would appreciate some feedback. Next step is to create a multiplayer trivia game where you can challenge your friends and see who knows more about the world. https://ift.tt/1rgK6sa April 20, 2025 at 09:34PM

Show HN: FlowG v0.32.0, Added support for OpenTelemetry logs collection https://ift.tt/pYbQeMX

Show HN: FlowG v0.32.0, Added support for OpenTelemetry logs collection https://ift.tt/rpBkPd7 April 20, 2025 at 02:39AM

Show HN: I built an AI that turns GitHub codebases into easy tutorials https://ift.tt/CrUNkqV

Show HN: I built an AI that turns GitHub codebases into easy tutorials https://ift.tt/hxIzMya April 20, 2025 at 02:34AM

Show HN: $30 and 2hours with Claude Code produced this https://ift.tt/e4Tm03K

Show HN: $30 and 2hours with Claude Code produced this As an experiment I let Claude Code write 100% of the code to begin a project management application. Total spent: $30 Time: 2hours I did this so showcase what Claude produces and to also get feedback on how well you think it did. https://ift.tt/YHm6id8 April 20, 2025 at 02:12AM

Show HN: Ibex – a cross-platform iOS backup decryption tool https://ift.tt/37cpw5o

Show HN: Ibex – a cross-platform iOS backup decryption tool ibex is a cross-platform tool designed for decrypting and extracting iOS backups. It provides forensic investigators, security researchers, and power users with the ability to access and analyze encrypted iOS backup data. It can be built and used on macOS, Linux, and Windows and is permitted to be used only with the explicit and informed consent of the backup data owner. Ibex was written in Go for straightforward compilation and to circumvent dependency issues and with the goal of enabling researchers and defenders assisting civil society victims of spyware and stalkerware Key Features - Decrypt encrypted iOS backups - Support for latest iOS versions - Cross-platform compatibility (macOS, Windows, Linux) - Automatic backup detection - Single file extraction based on filename match - Structured output organization - Detailed manifest parsing and extraction Basic Usage Examples # Run with automatic backup detection and interactive mode ibex # Specify just the backup path ibex -b /path/to/backup # Specify backup path and password ibex -b /path/to/backup -p "backup_password" # Specify custom output directory ibex -b /path/to/backup -p "backup_password" -o /path/to/output # Specify a single file for decryption and extraction ibex -b /path/to/backup -o /path/to/output --file sms.db # Specify relative path preserved output ibex -b /path/to/backup -o /path/to/output -r https://ift.tt/irexSAZ April 19, 2025 at 11:10PM

Show HN: Dirb – Directory in Bio https://ift.tt/2KOzLbo

Show HN: Dirb – Directory in Bio Dirb lets you build a personal profile, organize links into rich, shareable lists, and automatically pull metadata and embeds. With built-in analytics, you can track clicks, views, and visits. It's made for creators, entrepreneurs, and professionals. Let me know what you think. I appreciate any feedback! https://dirb.io April 19, 2025 at 12:42AM

Show HN: (bits) of a Libc, Optimized for Wasm https://ift.tt/gIipVxj

Show HN: (bits) of a Libc, Optimized for Wasm I make a no-CGO Go SQLite driver, by compiling the amalgamation to Wasm, then loading the result with wazero (a CGO-free Wasm runtime). To compile SQLite, I use wasi-sdk, which uses wasi-libc, which is based on musl. It's been said that musl is slow(er than glibc), which is true, to a point. musl uses SWAR on a size_t to implement various functions in string.h. This is fine, except size_t is just 32-bit on Wasm. I found that implementing a few of those functions with Wasm SIMD128 can make them go around 4x faster. Other functions don't even use SWAR; redoing those can make them 16x faster. Smooth sort also has trouble pulling its own weight; a Shell sort seems both simpler and faster, while similarly avoiding recursion, allocations and the addressable stack. I found that using SIMD intrinsics (rather than SWAR) makes it easier to avoid UB, but the code would definitely benefit from more eyeballs. See this for some benchmarks on both x86-64 and Aarch64: https://ift.tt/MwPpog3... https://ift.tt/ySGEgAz April 18, 2025 at 11:36PM

Show HN: I built a simple, fast transit app for the Bay Area https://ift.tt/dfGeaWv

Show HN: I built a simple, fast transit app for the Bay Area Hey HN, I built Commuter because I was tired of switching between different apps to check arrival times for BART, Caltrain, Muni, ferries, and more. This app pulls directly from the official 511 API and aims to provide a fast, clean experience focused on real-time departures. There’s no account creation, it’s free to use, and it supports every major transit provider in the Bay Area—from Napa down to San Jose. You can search, favorite lines/stops, and see live countdowns with minimal friction. It’s built entirely in SwiftUI using native Apple frameworks. Happy to answer questions about the API, SwiftUI quirks, or anything else. Feedback welcome! https://ift.tt/86Aglnx April 18, 2025 at 11:00PM

Show HN: val – An arbitrary precision calculator language https://ift.tt/1JxjPhf

Show HN: val – An arbitrary precision calculator language Wrote this to learn more about the `chumsky` parser combinator library, rustyline, and the `ariadne` error reporting crate. Such a nice DX combo for writing new languages. Still a work in progress, but I thought I'd share :) https://ift.tt/RIe2kaX April 18, 2025 at 01:21AM

Show HN: HN Watercooler – listen to HN threads as an audio conversation https://ift.tt/h31sAJN

Show HN: HN Watercooler – listen to HN threads as an audio conversation Hi HN, here's something fun to play with. It takes any HN thread and turns it into an audio conversation so you can listen to the thread while doing other things. I've seen many previous attempts to turn HN threads into podcasts, but they all shared a common issue IMO: trying to reduce the very rich back-and-forth into a single-thread single-reader boring podcast. Instead, I wanted to hear the actual debate from the actual thread! So I asked Claude 3.7 to build this for me as a browser-only app. It just needs a thread URL and an Elevenlabs API key (this all remains in your browser, you can check the source code, it's only 3 files, there is no server storage of anything). To make the resulting audio experience as natural as possible, each commenter has a different voice. Commenters who appear multiple times in the thread have the same voice, and introduce themselves. A bit of context is also introduced when coming back "up" from deeply nested comments. You can play the resulting audio or download it for later listening. I'm planning to later add the ability to load multiple threads so I can have a playlist generated for listening in the gym! Any comments or improvement suggestions are appreciated! https://ift.tt/MNPRVEJ April 18, 2025 at 12:24AM

Show HN: Zuni (YC S24) – AI Copilot for the Browser https://ift.tt/DW5KYMo

Show HN: Zuni (YC S24) – AI Copilot for the Browser Hi HN, I'm Will, and along with my co-founder George, we've built Zuni ( https://zuni.app ) - a browser extension that adds contextual AI capabilities to your browser. It understands what you're reading and working on, whether that's email, research, or anything else in your tabs. We started out building a full email client with AI built in (you might have seen that version showcased in YC’s AI Design Review - https://www.youtube.com/watch?v=DBhSfROq3wU&t=1601s ), but learned that people don't actually want to leave their existing tools - they just want them to work better. Gmail might be frustrating, but it has years of features people rely on. So we pivoted to enhance the tools people already use, rather than replace them entirely. Some specific things Zuni does today: - Analyzes emails as you read them in Gmail, identifying action items and suggesting possible responses - Lets you discuss how to handle tricky emails, almost like having a thought partner - Maintains context across your browsing session so you can ask follow-up questions naturally - Runs locally first for speed and privacy - Doesn't store chats, emails or anything sensitive in the cloud We're still early and focusing on getting the core experience right before adding more integrations. The goal is to make AI actually useful in your daily work, rather than just another "AI feature" checkbox. Would genuinely love feedback from the HN community - what would make this truly useful for your workflow? What are we missing? Happy to answer any questions about the technical implementation too. https://zuni.app April 17, 2025 at 08:45PM

Show HN: We made a VS Code extension to recreate a debugger experience from logs https://ift.tt/8rIXavj

Show HN: We made a VS Code extension to recreate a debugger experience from logs A month ago [1], we made an MCP server so Cursor can debug Node.js on its own. We emailed every person that starred our repository [2] and learnt that frontend devs really want to give Cursor access to browser logs, and that backend devs (our intended audience) do not use debuggers nearly as much as we thought. We interviewed friends across startups and discovered that they use logs to debug, because they can’t run services locally on their machine. The services (1) require too much disk, RAM, or CPUs to run locally, (2) have too many service dependencies (think microservices), or (3) are a faff to instantiate locally with a debugger. Instead, our friends instrument their services, deploy them to staging environments via Kubernetes, and then query the logs via data stores (think Grafana, Axiom.co, Google Cloud Logging, etc) or directly (think Kubernetes logs). We thought: "What if we could recreate a debugger-like experience from logs?". That would save them from browsing logs and trying to make sense of them outside the context of the code base. We looked into it and made a VS code extension that lets you (1) import logs, (2) go to the line of code associated with a log, and navigate up/down the probable call stack associated with a log. It's a prototype, but if you're interested in trying it out, we'd love some feedback! GitHub: github.com/hyperdrive-eng/traceback --- References: [1]: https://ift.tt/2kRSBUA [2]: 140 Github stars, 69 emails sent (the rest were bots), 19 responses received (= 28% response conversion), 4 meetings held (= 21% meeting conversion). https://ift.tt/XWBNEAv April 17, 2025 at 04:37AM

Show HN: Milter in Rust to Add Headers https://ift.tt/jS1yMQF

Show HN: Milter in Rust to Add Headers Here's a milter in Rust that adds List-Unsubscribe headers. It creates a URL that has encoded email-from, rcpt-to and a HMAC SHA 256 verification hash using a shared secret key. Possibly it improves delivery of newsletters and transactional emails. https://ift.tt/mE6hLCq April 17, 2025 at 02:22AM

Show HN: logidiff – determine if two or more logical statements are equivalent https://ift.tt/m5W6JaD

Show HN: logidiff – determine if two or more logical statements are equivalent https://ift.tt/ylD02iu April 17, 2025 at 02:29AM

Show HN: Rocal – Full-stack WASM framework https://ift.tt/yZeCwhA

Show HN: Rocal – Full-stack WASM framework https://ift.tt/JuRUeXw April 16, 2025 at 06:43AM

Show HN: Particle - News, Organized https://ift.tt/IJGxrSF

Show HN: Particle - News, Organized Hello HN! Particle News product engineer here. Keeping up with the news is overwhelming in an age of information overload. Particle reimagines the experience by organizing articles into comprehensive "Stories," offering clear, concise summaries to quickly grasp what matters. Today, we reached the #1 spot in "Newspapers & Magazine" on the iOS App Store—and I thought I'd share a bit of our backstory. I've been connected to this team for a long time. About 20 years ago, I shared a house with our CTO and co-founder Marcel Molina. I helped him get started with programming. Since then, Marcel has had an extraordinary career—becoming a senior staff engineer at Twitter, where he helped build foundational features like Retweets, Notifications, and Lists, and later working at Tesla on manufacturing execution systems that scaled across Gigafactories. At Twitter, Marcel worked closely with our CEO and product visionary Sara Beykpour, who led initiatives like Twitter Blue, Twitter Video, and the experimental app twttr . Sara has a background in Software Engineering and Cognitive Science from the University of Waterloo and spent over a decade at Twitter in engineering and leadership roles. In late 2022, Sara and Marcel started prototyping a news app that could reduce the cognitive and emotional burden of staying informed—by using AI to help people understand more, faster. They were soon joined by a few other former Twitter colleagues who helped shape the early concept into a working iOS application. I joined about 15 months ago to contribute across the entire stack. Since then, I've helped design and build major iOS features, rewritten our public website on Cloudflare Workers, and implemented new functionality in our Go backend, which is driven by Google Cloud's Pub/Sub architecture. What Makes Particle News Different Particle helps you navigate the news effortlessly—leveraging AI to help you understand more, faster. Some highlights: • Personalized News – Your feed is tailored to your interests. You can follow specific people, places, and things so you never miss what matters to you. • Clear Summaries – Get a quick overview or dive deeper with detailed, structured context—summarized in natural language. • Perspective Tools – Features like "Opposite Sides" and our political spectrum chart let you explore stories through multiple lenses. • Interactive Q&A – Ask questions about any story and get concise answers with sources and citations. • Audio Summaries – Use the "Play" feature to listen to your feed, specific stories, or even select articles—great for hands-free or on-the-go moments. One of the things we're most proud of is how Particle supports publishers. We've partnered with outlets like Reuters, AFP, and Fortune to host some of their content via APIs. These partners get prominent placement, and their links are highlighted in gold to stand out. This model aims to drive traffic back to publishers and reward high-quality journalism, rather than just aggregating and commodifying it. Transparency is a core value: all sources are cited, generated answers are grounded in evidence, and we take real care to prevent AI hallucinations or misleading summaries. Despite negligible marketing spend, Particle has grown to the top of its category by focusing on engagement with early users and meaningful partnerships with the media ecosystem. Coming soon: weekday mini crosswords—a new feature designed by another longtime friend of ours from 20 years back who went on to work at Twitter, lead development on Firewatch, and release his own games independently. It's incredibly fun and rewarding to be building something meaningful with old and new friends. I feel lucky every day to work alongside some of the best product, design, and engineering minds on a project we hope will help people stay engaged with democracy without burning out. https://ift.tt/vzOx4Ei April 16, 2025 at 02:56AM

Show HN: Torque – A lightweight meta-assembler for any processor https://ift.tt/yJL0Bpu

Show HN: Torque – A lightweight meta-assembler for any processor Hello everyone, I've been working on this project for the past few months. Torque is a meta-assembler: instead of having an instruction set built into the assembler, you use macros to build up a small language that decribes an instruction set and then you use that to write your program. It's designed to work for any microcontroller/processor architecture, you build from the bit level upwards so there aren't any assumptions around word widths, instruction formats, or endianness. I created Torque initially to write programs for a PIC microcontroller, after running into difficulties with the official assembler. I've also used it to write programs for the Z80 processor inside an old TRS-80 computer. Let me know if you try it out or have any questions! https://ift.tt/YlvTk3h April 16, 2025 at 03:16AM

Show HN: I asked Gemini2.5 pro to create a "bro version" of a stoic book https://ift.tt/Ukj0MQ5

Show HN: I asked Gemini2.5 pro to create a "bro version" of a stoic book https://ift.tt/p9aWQKD April 15, 2025 at 11:06PM

Show HN: I built a tool that make its fast to onboard devs to your codebase https://ift.tt/BO2AhTb

Show HN: I built a tool that make its fast to onboard devs to your codebase https://envkit.co/ April 14, 2025 at 11:29PM

Show HN: ActorCore – Stateful serverless framework that runs anywhere https://ift.tt/3ZzqViR

Show HN: ActorCore – Stateful serverless framework that runs anywhere TL;DR: ActorCore is a stateful serverless framework that can be deployed to Rivet, Cloudflare, Bun, Node.js and more. It's the easiest way to build stateful, AI agent, collaborative, or local-first applications. Hey HN! A few months ago we launched Rivet Actors ( https://ift.tt/AXunRPh ) as an open-source alternative to Cloudflare Durable Objects. Shortly after launching, we realized our goal is not to win over existing Durable Objects developers, but rather to grow the stateful serverless ecosystem. For context – "stateful serverless" is effectively the actor model with persistent state attached. Think Lambda functions with local storage & runs indefinitely. It's a a technology that’s gaining traction to ship faster, achieve higher performance, and outscale Postgres. The most widely used implementation is Cloudflare Durable Objects. In the process of talking to developers, we kept hearing three common concerns: - Vendor lock-in: Developers are hesitant to adopt a new programming model if there's no clear off-ramp. While it's straightforward to migrate a Postgres database, stateful serverless platforms like Rivet Actors or Durable Objects can feel locked-in due to lack of viable alternatives. - Ecosystem: Choosing a well-known database like Postgres comes with a mature ecosystem. Adopting a new model means rebuilding tooling and patterns from scratch. - Conceptual gap: Many developers have spent their entire careers designing systems with intentionally separated state and compute. A model that merges the two can feel backwards at first. After hearing these concerns again and again, we came to the conclusion that the best solution was to build a framework that works with as many platforms as possible to reduce lock-in (concern #1) and grow a shared ecosystem of tools (concern #2). It turns out, we already had a battle-tested framework built on top of Rivet Actors that we’ve been using for years. (It has a long, funky history beyond Rivet in gaming I won't get into here.) Thus, we split out the framework in to a new repo, added support for four platforms (easier said than done), and called it ActorCore. It gives developers multiple platforms to choose from when adopting stateful serverless and creates a foundation for a broader, cross-platform ecosystem. However, this still leaves concern #3: the conceptual gap. While this isn't something we can solve with a framework, I personally spend ~40% of my time working on docs, content, and examples to help resolve this. ActorCore is also panning out to be community-driven as hoped, which enables more people to try and share their experience with stateful serverless. Give ActorCore a try, read the roadmap, and let us know where we can improve documentation. If you're hesitant about trying stateful serverless, I'd love to learn more in the comments. Consider giving us a star on GitHub: https://ift.tt/BfEAcYg https://ift.tt/oqBpi3V April 14, 2025 at 08:27PM

Show HN: I made a math puzzle game. Hope you like it https://ift.tt/ejrgDRl

Show HN: I made a math puzzle game. Hope you like it I've been playing with this for quite some time and I think it's finally ready for public consumption. All feedback welcome. https://ift.tt/5HVcQn0 April 11, 2025 at 11:56PM

Show HN: Cigarette – a Safari extension that hides ads on X, Reddit, & LinkedIn https://ift.tt/9xzSFa0

Show HN: Cigarette – a Safari extension that hides ads on X, Reddit, & LinkedIn https://ift.tt/idwjDAT April 14, 2025 at 12:14AM

Show HN: LeetGPU, a playground to learn practice and hone your GPU programming. https://ift.tt/J8XHM3a

Show HN: LeetGPU, a playground to learn practice and hone your GPU programming. Learn, write, practice CUDA programming on LeetGPU.com, an online CUDA playground for anyone to write and execute CUDA code without needing a GPU and for free April 13, 2025 at 09:32PM

Show HN: AI quiz generator from any topic or book in seconds https://ift.tt/8f7I9vU

Show HN: AI quiz generator from any topic or book in seconds https://www.wiyomi.com April 10, 2025 at 10:57AM

Show HN: Downr – An All-in-One Social Media Downloader for 50 Platforms https://ift.tt/rkmOVxK

Show HN: Downr – An All-in-One Social Media Downloader for 50 Platforms https://downr.org April 12, 2025 at 04:36PM

Show HN: OctAPI – Visualize API Routes Directly in VS Code https://ift.tt/v6irJtI

Show HN: OctAPI – Visualize API Routes Directly in VS Code Started noticing issues while working with friends that I thought only I was encountering: spending too long manually adding routes to postman, getting lost looking for a single route in the sea of files and thought Hey, I can fix that (I think?) So OctAPI is a VSCode extension that automatically detects and displays API routes from a local project (currently supports Express.js, NestJS, Next.js, Koa, Flask, and FastAPI), it filters and groups them, generates a Postman export JSON file, and adds to favs. It doesn't run your code and it all stays in your machine A friend literally screamed when they were live testing it for me lol It's open source ( https://ift.tt/zhYk7Pi ) and here's its landing page ( https://ift.tt/ASGrOhs ) I'm hoping to add custom tags, more frameworks support and even AI features. https://ift.tt/tZj2Ywf April 13, 2025 at 01:48AM

Show HN: memEx, a personal knowledge base inspired by zettlekasten and org-mode https://ift.tt/kwYJo35

Show HN: memEx, a personal knowledge base inspired by zettlekasten and org-mode https://ift.tt/z7KVMAd April 13, 2025 at 12:32AM

Show HN: Pg_CRDT – CRDTs in Postgres Using Automerge https://ift.tt/QeEZXi3

Show HN: Pg_CRDT – CRDTs in Postgres Using Automerge https://ift.tt/Nxj0Kbz April 11, 2025 at 10:23PM

Show HN: Atari Missile Command Game Built Using AI Gemini 2.5 Pro https://ift.tt/KtDFc8J

Show HN: Atari Missile Command Game Built Using AI Gemini 2.5 Pro A modern HTML5 canvas remake of the classic Atari game from 1980. Defend your cities and missile bases from incoming enemy attacks using your missile launchers. Initially built using the Google Gemini 2.5 Pro AI LLM model. https://ift.tt/9guneZ0 April 7, 2025 at 11:48AM

Show HN: Lunon – Instant model switching across LLMs https://ift.tt/ovmC4x2

Show HN: Lunon – Instant model switching across LLMs Hey HN! We built Lunon to make LLM development way less of a headache. Ever wanted to see how different models handle the same prompt without all the setup hassle? That's what we fixed. Our API lets you compare Claude, GPT, Mistral and others in real-time with just a few lines of code. No more complex infrastructure or managing multiple API connections - we handle all that boring stuff behind the scenes. Plus, you can cut costs by intelligently routing requests to the right model for each task. Use the powerful (expensive) models only when you really need them. If you're building with LLMs and tired of the integration headaches, would love to hear feedback! https://lunon.com/ April 11, 2025 at 11:46PM

Show HN: I built a tool to manage and compare credit card rewards https://ift.tt/omD6kXQ

Show HN: I built a tool to manage and compare credit card rewards This is a free tool that helps you manage and visualize your credit card rewards across different categories. You can input the cards in your wallet and see how they complement each other, spot gaps in your setup, and also see the best card to use for a given merchant. I’m also a founder at OneCard, where we’re building a smart card that’ll eventually handle all of this automatically, routing each purchase to the best card in real-time. Would love feedback from the HN community! https://ift.tt/zheKfoH April 11, 2025 at 02:54AM

Show HN: Calculate confidence score for OpenAI JSON output https://ift.tt/6cmEbYr

Show HN: Calculate confidence score for OpenAI JSON output https://ift.tt/Ei0swFG April 10, 2025 at 08:46PM

Show HN: I built an app that reduces podcast preparation effort by 95% + https://ift.tt/9JEceFH

Show HN: I built an app that reduces podcast preparation effort by 95% + https://ift.tt/WcSDPCu April 10, 2025 at 11:22PM

Show HN: Aqua Voice 2 – Fast Voice Input for Mac and Windows https://ift.tt/jid7bxP

Show HN: Aqua Voice 2 – Fast Voice Input for Mac and Windows Hey HN - It’s Finn and Jack from Aqua Voice ( https://withaqua.com ). Aqua is fast AI dictation for your desktop and our attempt to make voice a first-class input method. Video: https://ift.tt/fRJ2d3l Try it here: https://ift.tt/jCYrGAo Finn is uber dyslexic and has been using dictation software since sixth grade. For over a decade, he’s been chasing a dream that never quite worked — using your voice instead of a keyboard. Our last post ( https://ift.tt/UpVWkNi ) about this seemed to resonate with the community - though it turned out that version of Aqua was a better demo than product. But it gave us (and others) a lot of good ideas about what should come next. Since then, we’ve remade Aqua from scratch for speed and usability. It now lives on your desktop, and it lets you talk into any text field -- Cursor, Gmail, Slack, even your terminal. It starts up in under 50ms, inserts text in about a second (sometimes as fast as 450ms), and has state-of-the-art accuracy. It does a lot more, but that’s the core. We’d love your feedback — and if you’ve got ideas for what voice should do next, let’s hear them! https://withaqua.com April 9, 2025 at 10:01PM

Show HN: I built a tool that deconstructs websites to reveal their tech stack https://ift.tt/lfyFxPK

Show HN: I built a tool that deconstructs websites to reveal their tech stack Hi HN, I built https://unbuilt.app to solve a problem I frequently faced as a developer: identifying the technology stack behind websites, especially those using newer frameworks and tools. While existing solutions rely on pre-saved data or signature databases, Unbuilt performs a fresh analysis by actually loading and examining the website code in real-time. This means it can detect cutting-edge technologies that often get missed by other analyzers. Technical details: - Uses Playwright to visit sites and analyze their resources - Queue-based architecture for handling concurrent requests - Optimized patterns for detecting modern frameworks (Next.js, Vite, React Compiler, etc.) - Dual-layer caching system for both performance and result sharing The tool is completely open-source and free to use. There are no premium tiers or usage limits. I built it because I believe developers deserve better tools for understanding the web ecosystem. I'd appreciate any feedback, particularly on detection accuracy and the types of technologies you'd like to see added. If you're interested in contributing, all pattern detection logic is designed to be easily extensible. Link to repo: https://ift.tt/MH2OELs https://unbuilt.app/ April 9, 2025 at 10:57PM

Show HN: My mom was unimpressed with my blog. What do you think? https://ift.tt/rfEGYeQ

Show HN: My mom was unimpressed with my blog. What do you think? I recently launched my personal tech blog and proudly showed it to my mom. Her response? "It's... fine." Now I need your brutally honest feedback! Blog URL: https://simonaking.com Github: https://ift.tt/r7hFVsU PS: Every visitor gets my mom one step closer to understanding what I actually do for a living! https://simonaking.com/ April 9, 2025 at 11:30AM

Show HN: DrawDB – open-source online database diagram editor (a retro) https://ift.tt/BSDKLCo

Show HN: DrawDB – open-source online database diagram editor (a retro) One year ago I open-sourced my very first 'real' project and shared it here. I was a college student in my senior year and desperately looking for a job. At the time of sharing it i couldn't even afford a domain and naively let someone buy the one i had my eyes on lol. It's been a hell of a year with this blowing up, me moving to another country, and switching 2 jobs. In a year we somehow managed to hit 26k stars, grow a 1000+ person discord community, and support 37 languages. I couldn't be more grateful for the community that helped this grow, but now i don't know what direction to take this project in. All of this was an accident. But now I feel like I'm missing out on not using this success. I have been thinking of monetization options, but not sure if I wanna go down that route. I like the idea of it being free and available for everyone but also can't help but think of everything that could be done if committed full-time or even had a small team. I keep telling myself(and others) i'll do something if i meet a co-founder, but doubt and fear of blowing this up keeps back. How would you proceed? https://www.drawdb.app/ April 9, 2025 at 05:50AM

Show HN: Chat with any GitHub repository via MCP https://ift.tt/7czW6ju

Show HN: Chat with any GitHub repository via MCP https://ift.tt/altL8F1 April 9, 2025 at 12:00AM

Show HN: Soundscapes and Lofi Player https://ift.tt/VFzM94Q

Show HN: Soundscapes and Lofi Player Hello HN! I would like to share my website which lets you play soundscapes and lofi music. All the sounds are in the public domain. GitHub repo: https://ift.tt/ai7XyKg https://ift.tt/nIejwph April 7, 2025 at 10:56PM

Show HN: Lux – a luxurious package manager for Lua https://ift.tt/t9Ji2PE

Show HN: Lux – a luxurious package manager for Lua https://ift.tt/oA4QdsB April 7, 2025 at 11:43PM

Show HN: nix-mcp-servers – MCP server Nix package repo https://ift.tt/TqZDLs3

Show HN: nix-mcp-servers – MCP server Nix package repo Started a collection of nix packages for some MCP servers I use. Makes installation into a NixOS-based system easy; also allows for running binaries straight from the flake on any Linux/macOS systems with nix installed. This can be convenient for MCP servers like `github-mcp-server` written in Go that aren't runnable using `uvx` or `npx`. https://ift.tt/AeyDT4E April 7, 2025 at 11:23PM

Show HN: A "Buy Me a Coffee" Button for Crypto Donations https://ift.tt/uz1lAaM

Show HN: A "Buy Me a Coffee" Button for Crypto Donations I am building a simple donation platform where creators can accept tips in crypto — kind of like “Buy Me a Coffee,” but Web3-native. No signups required for supporters. Just share your donation page and anyone can send MATIC, ETH, or any ERC-20 token directly to your wallet. It’s gas-efficient and built on Polygon. Each creator gets a customizable page with a short URL and optional message board. Everything is non-custodial — you own your keys and your funds. https://ift.tt/Zvj5eqi April 7, 2025 at 12:21AM

Show HN: Spend Elon Musk's fortune on AirPods, NFL teams, etc as fast as you can https://ift.tt/XIyhn0J

Show HN: Spend Elon Musk's fortune on AirPods, NFL teams, etc as fast as you can https://ift.tt/HTEcRnF April 7, 2025 at 04:07AM

Show HN: A fast, minimal and offline-friendly web playground https://ift.tt/neKPNQv

Show HN: A fast, minimal and offline-friendly web playground I built a web-based HTML/CSS/JS editor focused on speed, simplicity, and offline access. No bloat — just open and start coding. What makes it different: Live Preview – Edit HTML, CSS, and JS side-by-side with instant feedback. Offline support – Works without internet. You can even install it as a PWA and use it like a native app. No Login Required – Just visit, code, and preview. Login only if you want to save/share. Savable & Shareable Links – Save scripts in the cloud and get shareable links. Customizable Editor – Themes, fonts, auto-format on save, layout tweaks, line wrapping, etc. Hotkey Support – Power user shortcuts with tooltips showing keybinds. Download as ZIP – Export your project with HTML/CSS/JS files separated. Ideal for tinkering, prototyping, teaching, or even building micro-tools. It’s intentionally simple and fast — more features coming soon. Try a sample snippet: https://ift.tt/DN5UEK6 https://ift.tt/aDnbz58 April 7, 2025 at 01:55AM

Show HN: Latitude.sh Databases – Simple PostgreSQL DBaaS on Bare Metal https://ift.tt/Sx7fW4w

Show HN: Latitude.sh Databases – Simple PostgreSQL DBaaS on Bare Metal Hi HN, Gabriel here, one of the developers at Latitude.sh (we're a bare metal cloud provider). Over the past year or so, I've been the primary developer building Latitude.sh Databases – our take on a managed PostgreSQL service. The core idea was to offer a straightforward and competitively priced option for developers who need reliable PostgreSQL without overly complex configurations, leveraging the performance benefits of running directly on bare metal. It runs on our global bare metal infrastructure. Key features we've implemented include: * Built-in monitoring & connection pooling * IP Address Whitelisting (Trusted Sources) * Automated backups configured directly to your own S3 bucket (giving you control over storage and potentially costs) * An optional integration with Supabase, allowing you to use parts of their dashboard for enhanced usability with your database. Under the hood, it's built on Kubernetes running on our bare metal servers, using the CloudNativePG operator to manage the PostgreSQL instances. We've found this operator approach works well for handling stateful database workloads in K8s, challenging the old notion that databases don't belong there. The service stemmed from internal needs and early interest gathered from a waitlist (~300 signups). It's currently live and available for use. We're launching it here on HN because we'd genuinely appreciate your feedback on: * The overall developer experience and UI simplicity. * The current feature set (especially the S3 backup and Supabase integration). * Performance perceptions (given the bare metal base). * Our pricing model's competitiveness and clarity. * Any technical aspects of the implementation (running PG on K8s/bare metal). Happy to answer any questions you have! You can check out the product page here: https://ift.tt/bpTA1my Thanks for looking! https://ift.tt/bpTA1my April 6, 2025 at 11:30PM

Show HN: I made an AI Platform that gamifies applying to jobs https://ift.tt/Xi6YlBI

Show HN: I made an AI Platform that gamifies applying to jobs Hi there! I've created ApplyNinja, a platform that uses AI to help jobseekers apply to jobs faster and better. What differentiates ApplyNinja from the other "auto-apply" platforms is the trained AI model behind it. It learns from your resume and the jobs you apply to, and it provides better and better results. Currently, it serves as a helper for the entire application process: - Track & Monitor job applications - Generates Resume suggestions and highlights the parts that are not so good - Auto-fixes and generates a new resume based on the suggestions - Creates Cover Letters based on your resume and the job description - Generates Company Insights, scraping user reviews from Glassdoor, Indeed etc. - Generates Salary Insights so jobseekers have a negotiation leverage - Generates Technical Interview Questions based on the Job Description On top of all of this, it provides a gamified experience, because consistency is the key in applying to jobs. Me and my friends are using it daily and manage to land approximately 5-10 interviews/month as Software Engineers. I would really love any kind of feedback. Thank you very much! https://ift.tt/IDaTBwk April 6, 2025 at 12:09AM

Show HN: Experience iPhone's "Blob Keyboard" prototype from 2005 https://ift.tt/lyrNUG6

Show HN: Experience iPhone's "Blob Keyboard" prototype from 2005 Hi HN, I teach tech design history, and one of the key stories I cover is the development of the original iPhone keyboard by Ken Kocienda. Reading about it in his book "Creative Selection" is great, but I wanted my students (and now you!) to actually feel this step in the process. So, I built a web simulator of the "Blob Keyboard", Kocienda's very first attempt at a touchscreen keyboard that actually works, from September 2005: Try the Blob Keyboard: https://ift.tt/ZFVWaDQ... - Tap for the middle letter - Swipe left or right for the side letters More on the github repo: https://ift.tt/safTRuL The Blob Keyboard prototype emerged during a UX crisis for iPhone team (their software keyboard just didn't work at all, fingers being too big, and the Newton failure loomed over them), highlighting how innovation is rarely a straight path. It was developed on a tethered touchscreen display codenamed "Wallaby". To make this simulator as authentic as possible, I referenced images from Kocienda's book and even got direct feedback and guidance from Ken Kocienda himself on Bluesky. What to expect (or… what not to expect): This is a reconstruction of a very early prototype with limitations reflecting that specific moment. The goal was to test first if typing with accuracy was even possible, as all the rest was moot if it failed! It's NOT QWERTY: They were still hoping to get us out of QWERTY, but then familiarity won. No Backspace: You can't delete. No Cursor Movement: The text field is just a simple display. No Caps or Numbers: Only lowercase letters. No Smooth Animations: Keys just "pop" instantly when pressed. Kocienda noted that your eye fills in the gaps, giving a sense of movement. Best Experience: While it works with a mouse/trackpad on desktop, it's designed for touchscreens to better replicate the original Wallaby hardware interaction. Use it on your phone! This project aims to provide a tangible glimpse into a turning point moment in iPhone development and the iterative nature of design. It's like stepping back in time and trying out that early demo on Kocienda's desk. I would love to hear your reactions and thoughts on experiencing this piece of UI history! What other significant prototype do you wish you could experience? April 5, 2025 at 11:50PM

Show HN: Reharmonizing Racing in the Street by Bruce Springsteen https://ift.tt/RN2qQsE

Show HN: Reharmonizing Racing in the Street by Bruce Springsteen I put together a short essay on re-harmonizing Racing in the Street by Bruce Springsteen. Just a simple demonstration of what’s possible today with a few hours and the right mix of technology https://ift.tt/BAELKpr April 5, 2025 at 11:11PM

Show HN: DuckDB Powered SQL Editor https://ift.tt/unwdl73

Show HN: DuckDB Powered SQL Editor Hi guys, I made an SQL editor that utilizes the duckDB engine to process your queries. As a result, the speed gains are +25% when compared to using any standard editor that connects through JDBC. I built this because I work on a small data team and we can't justify an OLAP database. Postgres is amazing but, if I try to run any extremely complex queries I get stuck waiting for several minutes to see the result. This makes it hard to iterate and get through any sort of analysis. That's when I got the idea to use duckDB's processing engine rather than the small compute available on my Postgres instance. I didn't enjoy writing SQL in a Python notebook and wanted something like dBeaver that just worked, so I created soarSQL. Try it out and let me know if it has a place in your toolkit! https://soarsql.com April 5, 2025 at 01:40AM

Show HN: I made an online free tool site https://ift.tt/9BWnTRS

Show HN: I made an online free tool site Hi HN! I've created [UFreeTools]( https://ift.tt/WF8ZOAc ), a collection of developer utilities (60+ tools and growing) that's completely free, ad-free, and runs entirely in the browser. No data leaves your device - everything is processed locally. ## Background As a developer, I found myself constantly searching for simple utilities like JSON formatters, UUID generators, and color pickers. Most existing options were cluttered with ads, required sign-ups, or sent data to servers. I wanted clean, fast tools that respected privacy. So I built UFreeTools as a modern SPA using Vue 3 and Vite with: - 100% client-side processing for all tools - Progressive loading with dynamic imports (only load what you use) - Dark/light theme support - Offline capability for most tools - Responsive design that works well on mobile ## Technical Details Some of the more technically interesting implementations: - *JWT Debugger*: Uses WebCrypto API for verification of all common algorithms - *Symmetric Encryption*: Implements AES-GCM/CBC/CTR with PBKDF2 key derivation - *Image Processing*: Uses Web Workers for non-blocking operations on large images ## Lessons Learned The biggest challenges were: 1. *Performance optimization*: Some tools (like image processors) needed careful optimization to handle large files without freezing the UI 2. *Browser API limitations*: Working around browser restrictions for certain crypto operations 3. *Bundle size management*: Keeping the initial load small while supporting 60+ tools ## Future Plans I'm planning to add: - Tool configurations sync via local storage - More specialized tools for developers based on feedback I built it because I needed these tools myself, and I hope others find it useful. I'd love your feedback, especially on UX, tool suggestions, or if you find any bugs! [Try UFreeTools]( https://ift.tt/WF8ZOAc ) https://ift.tt/WF8ZOAc April 4, 2025 at 11:26PM

Show HN: Monkeys.zip – 3000 Monkeys on Typewriters https://ift.tt/MFVudNW

Show HN: Monkeys.zip – 3000 Monkeys on Typewriters Hey HN! I posted this on April 1st when it launched, and though it didn't get traction here, it was a minor hit on reddit! Now that we've got a few thousand monkeys under our belt, wanted to give it another shot here! Happy to talk about the technical details of running the site - using supabase/postgres and constantly putting out fires from the traffic. https://monkeys.zip/ April 3, 2025 at 11:36PM

Show HN: Exponent, a collaborative AI programming agent https://ift.tt/t0JIS9a

Show HN: Exponent, a collaborative AI programming agent https://ift.tt/rdGFs1o April 3, 2025 at 12:23AM

Show HN: Bookmarklet to Add TOC to ChatGPT's Chats https://ift.tt/Rqdorge

Show HN: Bookmarklet to Add TOC to ChatGPT's Chats https://ift.tt/mbEGXUM April 2, 2025 at 11:36PM

Show HN: Calculation Hub: Every Calculation Tool You'll Ever Need https://ift.tt/DLg274y

Show HN: Calculation Hub: Every Calculation Tool You'll Ever Need Every Calculation Tool You'll Ever Need. Growing list of calculators, in a clean, simple design. https://ift.tt/PdoUOb2 April 1, 2025 at 08:48PM

Show HN: I built a CLI for one-command fullstack TypeScript projects https://ift.tt/BONzRCv

Show HN: I built a CLI for one-command fullstack TypeScript projects I built a CLI for scaffolding TypeScript projects with Turborepo, React, and tRPC. It includes TanStack Router/Query, Tailwind, Hono/Elysia backends, Drizzle/Prisma ORMs, and more. npx create-better-t-stack@latest https://ift.tt/anb5q9V April 1, 2025 at 11:49PM

Show HN: Zig Topological Sort Library for Parallel Processing https://ift.tt/BXaiCgM

Show HN: Zig Topological Sort Library for Parallel Processing I believe the best way to learn a language is by doing an in-depth project. This is my first Zig project intended for learning the ropes on publishing a Zig package. It turns out to be quite solid and performant. It might be a bit over-engineered. This little library is packed with the following features: - Building dependency graph from dependency data. - Performing topological sort on the dependency graph. - Generating dependence-free subsets for parallel processing. - Cycle detection and cycle reporting. https://ift.tt/snEFQgj April 1, 2025 at 11:18PM