Show HN: MCPShark Viewer (VS Code/Cursor extension)- view MCP traffic in-editor https://ift.tt/0FfR5t1

Show HN: MCPShark Viewer (VS Code/Cursor extension)- view MCP traffic in-editor A few days ago I posted MCPShark (a traffic inspector for the Model Context Protocol). I just shipped a VS Code / Cursor extension that lets you view MCP traffic directly in the editor, so you’re not jumping between terminals, logs, and "I think this is what got sent". VS Code Marketplace: https://marketplace.visualstudio.com/items?itemName=MCPShark... Main repo: https://ift.tt/rCDSdwp Feature requests / issues: https://ift.tt/dHQxWsT Site: https://mcpshark.sh/ If you’re building MCP agents/tools: what would make MCP debugging actually easy—timeline view, session grouping, diffing tool args, exporting traces, something else? I’d be thankful if you could open a feature request here: https://ift.tt/dHQxWsT December 17, 2025 at 11:49PM

Show HN: Stickerbox, a kid-safe, AI-powered voice to sticker printer https://ift.tt/eANsQFh

Show HN: Stickerbox, a kid-safe, AI-powered voice to sticker printer Bob and Arun here, creators of Stickerbox. If AI were built for kids, what would it look like? Asking that question led us to creativity, and more specifically, the power of kids’ imaginations. We wanted to let kids combine the power of their ideas with AI tools but we needed to make sure we did it safely and in the right way. Enter Stickerbox, a voice powered sticker printer. By combining AI image generation with thermal sticker printing, we instantly turn kids' wildest ideas into real stickers they can color, stick, and share. What surprised us most is how the “AI” disappears behind the magic of the device. The moment that consistently amazes kids is when the printer finishes and they are holding their own idea as a real sticker. A ghost on a skateboard, a dragon doing its taxes, their dog as a superhero, anything they can dream of, they can hold in their hand. Their reactions are what pushed us to keep building, even though hardware can be really hard. Along the way the scope of the project grew more than we expected: navigating supply chains, sourcing safe BPA/BPS free thermal paper, passing safety testing for a children’s product, and designing an interface simple enough that a five year old can walk up and just talk to it. We also spent a lot of time thinking about kids’ data and privacy so that parents would feel comfortable having this in their home. Stickerbox is our attempt to make modern AI kid-safe, playful, and tangible. We’d love to hear what you think! P.S. If you’re interested in buying one for yourself or as a gift, use code FREE3PACK to get an extra free pack of paper refills. https://stickerbox.com/ December 20, 2025 at 01:14AM

Show HN: Spice Cayenne – SQL acceleration built on Vortex https://ift.tt/qf27DTA

Show HN: Spice Cayenne – SQL acceleration built on Vortex Hi HN, we’re Luke and Phillip, and we’re building Spice.ai OSS - a lightweight, portable data and AI engine and powered by Apache DataFusion & Ballista for SQL query, hybrid-search, and LLM-inference across disaggregated-storage used by enterprises like Barracuda Networks and Twilio. We first introduced Spice [1] on HN in 2021 and re-launched it on HN [2] in 2024 re-built from the ground up in Rust. Spice includes the concept of a Data Accelerator [3], which is a way to materialize data from disparate sources, such as other databases, in embedded databases like SQLite and DuckDB. Today we’re excited to announce a new Ducklake-inspired Data Accelerator built on Vortex [3], a highly performant, extensible columnar data format that claims 100x faster random access, 10-20x faster scans, 5x faster writes with a similar compression ratio vs. Apache Parquet. In our tests with Spice, Vortex performs faster than DuckDB with a third of the memory usage, and is much more scalable (multi-file). For real-world deployments, we see the DuckDB Data Accelerator often capping out around 1TB, but Spice Cayenne can do Petabyte-scale. You can read about it at https://spice.ai/blog and in the Spice OSS release notes [4]. This is just the first version, and we’d love to get your feedback! GitHub: https://ift.tt/9DkasJg [1] https://ift.tt/hU9afrV [2] https://ift.tt/X3LHcF1 [3] https://ift.tt/lgbu6VP [4] https://ift.tt/2wzrjn7 https://ift.tt/9N8YVqC December 19, 2025 at 12:30AM

Show HN: Explore Prometheus /metrics endpoints from your terminal https://ift.tt/NAH9dIQ

Show HN: Explore Prometheus /metrics endpoints from your terminal https://ift.tt/ItVbFGm December 18, 2025 at 11:40PM

Show HN: The feature gap "Chat with PDF" tuts and a regulated enterprise system https://ift.tt/N2v7WaP

Show HN: The feature gap "Chat with PDF" tuts and a regulated enterprise system I've spent the last few months architecting a RAG system for a regulated environment. I am not a developer by trade, but I approached this with a strict "systems engineering" and audit mindset. While most tutorials stop at "LangChain + VectorDB", I found that making this legally defensible and operationally stable required about 40+ additional components. We moved from a simple ingestion script to a "Multi-Lane Consensus Engine" (inspired by Six Sigma) because standard OCR/extraction was too hallucination-prone for our use case. We had to build extensive auditing, RBAC down to the document level, and a hybrid Graph+Vector retrieval to get acceptable accuracy The current architecture includes: Ingestion: 4 parallel extraction lanes (Vision, Layout, Text, Legal) with a Consensus Engine ("Solomon") that only indexes data confirmed by multiple sources Retrieval: Hybrid Neo4j (Graph) + ChromaDB (Vector) with Reciprocal Rank Fusion Performance: Semantic Caching (Redis) specifically for similar-meaning queries (40x speedup) Security: Full RBAC, Audit Logging of every prompt/retrieval, and PII masking. I documented the complete feature list and gap analysis https://gist.github.com/2dogsandanerd/2a3d54085b2daaccbb1125... My question to the community: Looking at this list – where is the line between "robust production engineering" and "over-engineering"? For those working in Fintech/Medtech RAG: what critical failure modes am I still missing in this list? https://gist.github.com/2dogsandanerd/2a3d54085b2daaccbb1125601945ceeb December 17, 2025 at 11:20PM

Show HN: Sqlit – A lazygit-style TUI for SQL databases https://ift.tt/syGSiEq

Show HN: Sqlit – A lazygit-style TUI for SQL databases I work mostly in the terminal but found myself constantly switching to bloated GUIs like SSMS only for the simple task of browsing tables and run queries. And I didn't find Existing SQL TUIs intuitive, having to read documentation to learn keybindings and CLI flags to connect. Given I had recently switched to linux, I found myself using vs code's sql database extension. Something was awfully wrong. I wanted something like lazygit for databases – run it, connect, and query and frankly just make it enjoyable to access data. Sqlit is a keyboard-driven SQL TUI with: - Context-based keybindings (always visible) - Neovim-like interface with normal and insert mode for query editing - Browse databases, tables, views, stored procedures - Adapters for SQL Server, SQLite, PostgreSQL, Turso & more - SSH tunneling support - Themes (Tokyo Night, Nord, Gruvbox etc.) Inspired by lazygit, neovim and lazysql. Built with Python/Textual. Feedback welcome – especially on which adapters to prioritize next. My vision of sqlit is to make a tool that makes it easy to connect and query data, and to do that, and that thing only, really well. https://ift.tt/aRFBTp6 https://ift.tt/aRFBTp6 December 15, 2025 at 09:17PM

Show HN: Zenflow – orchestrate coding agents without "you're right" loops https://ift.tt/SdaFUhr

Show HN: Zenflow – orchestrate coding agents without "you're right" loops Hi HN, I’m Andrew, Founder of Zencoder. While building our IDE extensions and cloud agents, we ran into the same issue many of you likely face when using coding agents in complex repos: agents getting stuck in loops, apologizing, and wasting time. We tried to manage this with scripts, but juggling terminal windows and copy-paste prompting was painful. So we built Zenflow, a free desktop tool to orchestrate AI coding workflows. It handles the things we were missing in standard chat interfaces: Cross-Model Verification: You can have Codex review Claude’s code, or run them in parallel to see which model handles the specific context better. Parallel Execution: Run five different approaches on a backlog item simultaneously—mix "Human-in-the-Loop" for hard problems with "YOLO" runs for simple tasks. Dynamic Workflows: Configured via simple .md files. Agents can actually "rewire" the next steps of the workflow dynamically based on the problem at hand. Project list/kanban views across all workload What we learned building this To tune Zenflow, we ran 100+ experiments across public benchmarks (SWE-Bench-*, T-Bench) and private datasets. Two major takeaways that might interest this community: Benchmark Saturation: Models are becoming progressively overtrained on all versions of SWE-Bench (even Pro). We found public results are diverging significantly from performance on private datasets. If you are building workflows, you can't rely on public benches. The "Goldilocks" Workflow: In autonomous mode, heavy multi-step processes often multiply errors rather than fix them. Massive, complex prompt templates look good on paper but fail in practice. The most reliable setups landed in a narrow “Goldilocks” zone of just enough structure without over-orchestration. The app is free to use and supports Claude Code, Codex, Gemini, and Zencoder. We’ve been dogfooding this heavily, but I'd love to hear your thoughts on the default workflows and if they fit your mental model for agentic coding. Download: https://ift.tt/1ClbX67 YT flyby: https://www.youtube.com/watch?v=67Ai-klT-B8 https://ift.tt/1ClbX67 December 16, 2025 at 10:02PM

Show HN: ModelGuessr: Can you tell which AI you're chatting with? https://ift.tt/8CLVjNv

Show HN: ModelGuessr: Can you tell which AI you're chatting with? Hey HN - I built ModelGuessr, a game where you chat with a random AI model and try to guess which one it is. A big open question in AI is whether there's enough brand differentiation for AI companies to capture real profits. Will models end up commoditized like cloud compute, or differentiated like smartphones? I built ModelGuessr to test this. I think that people will struggle more than they expect. And the more model mix-ups there are, the more commodity-like these models probably are. If enough people play, I'll publish some follow-up analyses on confusion patterns (which models get mistaken for each other, what gives them away, etc.). Would love any feedback! https://ift.tt/syFBSW4 December 15, 2025 at 10:29PM

Show HN: A lightweight SaaS to reduce early-stage app friction https://ift.tt/Ju5Oahc

Show HN: A lightweight SaaS to reduce early-stage app friction I recently shipped a small SaaS I built in roughly 24 hours, mostly during school breaks. This is my first project that I have taken from idea to deployment, onboarding, and real users. The product targets early-stage developers and focuses on reducing initial setup and preparation when building new apps. It abstracts away some of the repetitive early decisions and boilerplate that tend to slow down first-time builders, especially around project structure, configuration, and “what should exist on day one”. I have a small number of active users, but churn is relatively high, which suggests either: the problem is not painful enough the abstraction leaks too early the UX or onboarding fails to communicate value or the tool solves a problem that disappears after the first session I would really appreciate technical feedback on: whether the abstraction layer makes sense if the mental model aligns with how you bootstrap projects where the product feels opinionated vs restrictive what would make this something you would actually keep installed Thanks for reading. Direct, critical feedback is very welcome. https://simpl-labs.com/ December 16, 2025 at 12:21AM

Show HN: A Wordle-style game for SHA-256 hashes https://ift.tt/spdI7YO

Show HN: A Wordle-style game for SHA-256 hashes i built a small wordle-style game where the target is a daily sha-256 hash. it’s intentionally not cryptographically realistic; the goal is to make avalanche effects and the meaninglessness of near-matches intuitive. this was a quick front-end experiment; the code isn’t published yet. everything runs client-side; no tracking; no accounts. https://hashle.app December 15, 2025 at 11:38PM

Show HN: A meditation timer without guidance, music, or growth mechanics https://ift.tt/hufnUGV

Show HN: A meditation timer without guidance, music, or growth mechanics I've worked in tech my entire career, and over time mindfulness meditation has become less of a "wellness habit" and more of a practical tool for keeping my mind clear. I encourage mindfulness meditation to everyone because it's that impactful on stress and awareness in everyday life. After years of practice, I've that most meditation apps eventually became distracting or costly. To me, mindfulness apps that provide guidance, content, forced streaks, and incentives seem to replace the practice of mindfulness itself with some gamification of the act. So I built Center, a silent meditation timer with a few constraints: • No guided sessions, voices, or music • No subscriptions, ads, or paywall • Optional tracking, no gamification • Works across iPhone, Apple Watch, iPad, and Mac via iCloud • Donation-supported, with no features locked The goal has never been growth or engagement, but reliability. I wanted something closer to a clock than a coach. This is a side project, but it’s been interesting to see how a deliberately "boring" tool changes how I personally practice mindfulness, and how that carries over into my work (especially decision-making and stress tolerance). Site: https://centertimer.com https://ift.tt/vESxZuo December 15, 2025 at 02:00AM

Show HN: 999 Penguins https://ift.tt/9Dkpzsq

Show HN: 999 Penguins https://999penguins.com December 14, 2025 at 07:31PM

Show HN: User.mom – Everything you need to reach Product-Market-Fit https://ift.tt/Zuy5YHC

Show HN: User.mom – Everything you need to reach Product-Market-Fit I've been building side projects for over a decade. Most failed to find Product‑Market‑Fit - I know the frustration of shipping features that don't stick. The painful truth I learned: many teams chase features over feedback. Worse, most feedback is shallow or useless because people avoid being critical. So I built user.mom to fix the process, not just add another tool. It maps the full PMF journey: Landing Pages to validate demand, Surveys to gather structured signals, Feedback Boards to organize requests, Customer Voting to prioritize, and Integrations (CSV, webhooks, API) to scale what works. If you’re tired of guessing what customers want, start your PMF workflow - the first product is free for every user. https://user.mom December 14, 2025 at 11:59PM

Show HN: Tic Tac Flip – A new strategic game based on Tic Tac Toe https://ift.tt/vZMB9sb

Show HN: Tic Tac Flip – A new strategic game based on Tic Tac Toe The biggest problem with Tic-Tac-Toe is that it almost always ends in a draw. Tic Tac Flip tries to fix that! Learn the rules in Learning Mode or below: - Winning Criteria: 3 Ghosts (Flipped O or X, which can be a mixture). It's not just 3 Os or 3 Xs anymore! - Flipping Mechanic: When one or more lines having only O and X are formed, the minority of either all Os or all Xs get flipped to a Ghost, and the majority gets removed from the board. E.g., A line of 2 Os and 1 X leads to 1 X ghost and the removal of 2 Os. - Active Flip: You can actively flip your O/X to a Ghost (or flip a ghost back) once per game. - Placing Ghost Directly: You can place a "Ghost" piece directly as a final winning move (only once, and only when there are two existing ghosts in a line). I'm looking for feedback on the game balance and learning curve. Specifically: - Is the "Ghost" and "Flip" mechanic intuitive? - Is the Learning Mode helpful? - Is the game fair? Any rule adjustments needed? - Any bugs or issues? Any suggestions or comments would be much appreciated. Thank you in advance! https://tic-tac-flip.web.app/ December 14, 2025 at 11:19AM

Show HN: Soup.lua: making Lua do what it shouldn't https://ift.tt/5CvnfKG

Show HN: Soup.lua: making Lua do what it shouldn't https://ift.tt/2AXQL5O December 14, 2025 at 12:33AM

Show HN: I built a GitHub application that generates documentation automatically https://ift.tt/oG9qZdm

Show HN: I built a GitHub application that generates documentation automatically Hi HN, A lot of the dev teams I have worked with had a lot of issues with their documentation. In fact, some of my easiest clients to get were from clients that had "black box" solutions that devs no longer at the company had created. Personally, writing documentation is like grinding nails on a chalkboard. I have been having a lot of fun with building solutions that can run in a distributed way, not something a dev needs to run themselves. And after a significant amount of testing and building out several different solutions, I finally have a solution that is easy to set up and runs in the background continuously to automate the documentation process. I'm looking for feedback on a few things: - Ease of onboarding, it should be a simple click -> select repos you want to add. - Quality of documentation, our current free accounts have a standard model compared to premium but the concepts are the same. - Dynamic environments: I tried to make this compatible with any random repo thrown at it. Let me know your thoughts https://codesummary.io December 13, 2025 at 02:57AM

Show HN: PhenixCode – Added admin dashboard for multi-server management https://ift.tt/CtJ7WMr

Show HN: PhenixCode – Added admin dashboard for multi-server management I built PhenixCode — an open-source, self-hosted and customizable alternative to GitHub Copilot Chat. Why: I wanted a coding assistant that runs locally, with full control over models and data. Copilot is great, but it’s subscription-only and cloud-only. PhenixCode gives you freedom: use local models (free) or plug in your own API keys. Use the new admin dashboard GUI to visually configure the RAG settings for multi-server management. https://ift.tt/c560k1U December 13, 2025 at 01:46AM

Show HN: I'm building an open-source Amazon https://ift.tt/Yutqd8G

Show HN: I'm building an open-source Amazon I'm building an open source Amazon. In other words, an open source decentralized marketplace. But like Carl Sagan said, to make an apple pie from scratch, you must first invent the universe. So first I had to make open source management systems for every vertical. I'm launching the first one today, Openfront e-commerce, an open source Shopify alternative. Next will be Openfront restaurant, Openfront grocery, and Openfront gym. And all of these Openfronts will connect to our decentralized marketplace, "the/marketplace", seamlessly. Once we launch other Openfronts, you'll be able to do everything from booking hotels to ordering groceries right from one place with no middle men. The marketplace simply connects to the Openfront just like its built-in storefront does. Together, we can use open source to disrupt marketplaces and make sure sellers, in every vertical, are never beholden to them. Marketplace: https://ift.tt/VnN5EtO Openfront platforms: https://ift.tt/YdauvjI Source code: https://ift.tt/bcxvlza Demo - Openfront: https://youtu.be/jz0ZZmtBHgo Demo - Marketplace: https://youtu.be/LM6hRjZIDcs Part 1 - https://ift.tt/klJvA3t https://openship.org December 12, 2025 at 11:49PM

Show HN: ESLint Plugin for styled-jsx https://ift.tt/dVOsCmJ

Show HN: ESLint Plugin for styled-jsx https://ift.tt/ynbJlvu December 12, 2025 at 11:44PM

Show HN: Gotui – a modern Go terminal dashboard library https://ift.tt/XfWD39n

Show HN: Gotui – a modern Go terminal dashboard library I’ve been working on gotui, a modern fork of the unmaintained termui, rebuilt on top of tcell for TrueColor, mouse support, and proper resize handling. It keeps the simple termui-style API, but adds a bunch of new widgets (charts, gauges, world map, etc.), nicer visuals (collapsed borders, rounded corners), and input components for building real dashboards and tools. Under the hood the renderer’s been reworked for much better performance, and I’d love feedback on what’s missing for you to use it in production. https://ift.tt/VjTq2QE December 12, 2025 at 02:35AM

Show HN: An endless scrolling word search game https://ift.tt/UjOLtrs

Show HN: An endless scrolling word search game I built a procedurally generated word-search game where the puzzle never ends - as you scroll, the grid expands infinitely and new words appear. It’s designed to be quick to pick up, satisfying to play, and a little addictive. The core game works without an account using the pre-defined games, but signing up allows you to generate games using any topic you can think of. I’d love feedback on gameplay, performance, and whether the endless format feels engaging over time. If you try it, I’d really appreciate any bug reports or suggestions. Thanks in advance! https://ift.tt/4foitj0 December 11, 2025 at 07:31PM

Show HN: SIM – Apache-2.0 n8n alternative https://ift.tt/PzurJA0

Show HN: SIM – Apache-2.0 n8n alternative Hey HN, Waleed here. We're building Sim ( https://sim.ai/ ), an open-source visual editor to build agentic workflows. Repo here: https://ift.tt/mUKcp3D . Docs here: https://docs.sim.ai . You can run Sim locally using Docker, with no execution limits or other restrictions. We started building Sim almost a year ago after repeatedly troubleshooting why our agents failed in production. Code-first frameworks felt hard to debug because of implicit control flow, and workflow platforms added more overhead than they removed. We wanted granular control and easy observability without piecing everything together ourselves. We launched Sim [1][2] as a drag-and-drop canvas around 6 months ago. Since then, we've added: - 138 blocks: Slack, GitHub, Linear, Notion, Supabase, SSH, TTS, SFTP, MongoDB, S3, Pinecone, ... - Tool calling with granular control: forced, auto - Agent memory: conversation memory with sliding window support (by last n messages or tokens) - Trace spans: detailed logging and observability for nested workflows and tool calling - Native RAG: upload documents, we chunk, embed with pgvector, and expose vector search to agents - Workflow deployment versioning with rollbacks - MCP support, Human-in-the-loop block - Copilot to build workflows using natural language (just shipped a new version that also acts as a superagent and can call into any of your connected services directly, not just build workflows) Under the hood, the workflow is a DAG with concurrent execution by default. Nodes run as soon as their dependencies (upstream blocks) are satisfied. Loops (for, forEach, while, do-while) and parallel fan-out/join are also first-class primitives. Agent blocks are pass-through to the provider. You pick your model (OpenAI, Anthropic, Gemini, Ollama, vLLM), and and we pass through prompts, tools, and response format directly to the provider API. We normalize response shapes for block interoperability, but we're not adding layers that obscure what's happening. We're currently working on our own MCP server and the ability to deploy workflows as MCP servers. Would love to hear your thoughts and where we should take it next :) [1] https://ift.tt/TgOBKj9 [2] https://ift.tt/k1MgO9j https://ift.tt/UgxfqPX December 11, 2025 at 10:50PM

Show HN: Cargo-rail: graph-aware monorepo tooling for Rust; 11 deps https://ift.tt/pU7GoTu

Show HN: Cargo-rail: graph-aware monorepo tooling for Rust; 11 deps https://ift.tt/87VchfK December 11, 2025 at 02:19AM

Show HN: I launched a podcast to interview makers https://ift.tt/CODudpz

Show HN: I launched a podcast to interview makers For years I’ve wanted to start a podcast to interview curious and passionate makers in the depths of their creative pursuits. I would love any feedback, a rating, and if you know anyone would would make a great guest, please let me know! https://ift.tt/j0FgkU4 December 11, 2025 at 12:40AM

Show HN: A 2-row, 16-key keyboard designed for smartphones https://ift.tt/fl1VJMW

Show HN: A 2-row, 16-key keyboard designed for smartphones Mobile keyboards today are almost entirely based on the 26-key, 3-row QWERTY layout. Here’s a new 2-row, 16-key alternative designed specifically for smartphones. https://ift.tt/q7yOoeL December 10, 2025 at 11:19PM

Show HN: Pixel text renderer using CSS linear-gradients (no JavaScript) https://ift.tt/6P91sUE

Show HN: Pixel text renderer using CSS linear-gradients (no JavaScript) I've been playing around with rendering pixel text using only CSS. No JS in the final result, and no per-pixel DOM elements (too heavy). The demo page is rendered as a long list of CSS linear-gradients. Each letter is an 8x8 matrix. Each pixel becomes a tiny background image. Demo: https://taktek.io Gallery/Debugger: https://ift.tt/cfMEOT6 Code: https://ift.tt/g6pCBOJ At first, I wrote each linear-gradient pixel manually... When I came to resize each pixel's size, I wrote the generator script. 1. It takes the text -> 2. breaks it into letters -> 3. gets its matrix -> 4. returns the linear-gradients list. It chooses a variant based on the context window. For example, a period after a sentence ("hello.") should look different than inside a domain ("example.com"). My workflow now is: open the gallery -> generate the CSS in the console -> copy the result into the static page. It's very small and a dumb tool, but I want it for an upcoming project. If you have any feedback, maybe some pitfalls, or a better approach, I'd love to hear them. https://taktek.io December 10, 2025 at 12:48AM

Show HN: ZON-TS 50–65% fewer LLM tokens zero parse overhead better than TOON/CSV https://ift.tt/gPYq8l9

Show HN: ZON-TS 50–65% fewer LLM tokens zero parse overhead better than TOON/CSV hey HN — roni here, full-stack dev out of india (ex-gsoc @ internet archive). spent last weekend hacking ZON-TS because json was torching half my openai/claude budget on dumb redundant keys — hit that wall hard while prototyping agent chains. result: tiny TS lib (<2kb, 100% tests) that zips payloads ~50% smaller (692 tokens vs 1300 on gpt-5-nano benches) — fully human-readable, lossless, no parse tax. drop-in for openai sdk, langchain, claude, llama.cpp, zod validation, streaming... just added a full langchain chain example to the readme (encode prompt → llm call → decode+validate, saves real $$ on subagent loops). quick try: ```ts npm i zon-format import { encode, decode } from 'zon-format'; const zon = encode({foo: 'bar'}); console.log(decode(zon)); ``` github → https://github.com/ZON-Format/ZON-TS benches + site → https://zonformat.org YC’s fall rfs nailed it — writing effective agent prompts is brutal when every token adds up. if you’re in a batch grinding observability (helicone/lemma vibes) or hitting gemini limits like nessie did, what’s your biggest prompt bloat headache right now? paste a sample below and i’ll zon it live. feedback (harsh ok) very welcome cheaper tokens ftw https://zonformat.org December 9, 2025 at 10:21PM

Show HN: I've asked Claude to improve codebase quality 200 times https://ift.tt/VrP84Fy

Show HN: I've asked Claude to improve codebase quality 200 times https://ift.tt/rWiaXoI December 9, 2025 at 03:03AM

Show HN: RamScout – Search eBay RAM Listings by Price per GB (US/UK) https://ift.tt/tJ9CT2O

Show HN: RamScout – Search eBay RAM Listings by Price per GB (US/UK) I built a small weekend project to help track RAM prices, since DDR3/DDR4/DDR5 costs have suddenly jumped recently and I was struggling to find good deals for my NAS build. RamScout scans eBay (UK/US) and ranks RAM listings by price per GB, with filters for type, capacity, speed, condition, etc. It’s a simple MVP — no frills, no accounts, no ads — just a fast way to spot unusually cheap listings. Would appreciate any feedback, especially on performance, UI, and whether expanding to more regions/vendors would be useful. Thanks! https://ift.tt/c7N1V2z December 9, 2025 at 03:56AM

Show HN: Fanfa – Interactive and animated Mermaid diagrams https://ift.tt/W8pefJi

Show HN: Fanfa – Interactive and animated Mermaid diagrams https://fanfa.dev/ December 4, 2025 at 06:46PM

Show HN: Edge HTTP to S3 https://ift.tt/toywNXO

Show HN: Edge HTTP to S3 Hi HN, Edge.mq makes it very easy to ship data from the edge to S3. EdgeMQ is a managed HTTP to S3 edge ingest layer that takes events from services, devices, and partners on the public internet and lands them durably in your S3 bucket, ready for tools like Snowflake, Databricks, ClickHouse, DuckDB, and feature pipelines. Design focus on simplicity, performance and security. https://edge.mq/ December 8, 2025 at 11:35PM

Show HN : WealthYogi - Net worth Tracker https://ift.tt/S20UQWf

Show HN : WealthYogi - Net worth Tracker Hey everyone I’ve been on my FIRE journey for a while and got tired of juggling spreadsheets, brokers, and bank apps — so I built WealthYogi, a privacy-first net worth tracker focused on clarity and peace of mind. Why Like many FIRE folks, I was juggling spreadsheets, bank apps, and broker dashboards — but never had one clear, connected view of my true net worth. Most apps required logins or shared data with third parties — not ideal if you care about privacy. So I built WealthYogi to be: Offline-first & private — all data stays 100% on your device Simple — focus purely on your wealth trajectory, not budgeting noise Multi-currency — 23 currencies, supporting GBP, USD, EUR, INR and more What it does now * Tracks your net worth and portfolio value in real time * Categorises assets (liquid, semi-liquid, illiquid) and liabilities (loans, mortgages, etc.) * Multi-currency support (GBP, USD, EUR, INR and more) * Privacy-first: all data stays 100% on your device * 10+ Financial Health Indicators and Personalised Finance Health Score and Suggestions to improve * Minimal, distraction-free design focused purely on your wealth trajectory Planned features (already in development) Real-time account sync Automatic FX updates Import/Export support More currency account types Debt tracking Net worth forecasting Pricing Free Trial for 3 days. One time deal currently running till 10th December. Monthly and Yearly Subscriptions available. Would love your feedback 1. Try the app and share honest feedback — what works, what feels clunky 2. Tell us what features you’d love to see next (especially FIRE-specific ideas!) 3. Share how you currently track your net worth — spreadsheet, app, or otherwise Here’s the link again: WealthYogi on the App Store ( https://ift.tt/rW2et1k ) WealthYogi on the Android ( https://ift.tt/2E8PyYw... ) Demo ( https://youtu.be/KUiPEQiLyLY ) I am building this for the FIRE and personal finance enthusiasts, and your feedback genuinely guides our roadmap. — The WealthYogi Team hello@datayogi.io https://ift.tt/ALdomje December 8, 2025 at 05:43AM

Show HN: OpenFret – Guitar inventory, AI practice, and a note-detection RPG https://ift.tt/oFlayTn

Show HN: OpenFret – Guitar inventory, AI practice, and a note-detection RPG I'm a solo dev and guitarist who got frustrated juggling separate apps for tracking gear, practicing, and collaborating. So I built OpenFret—one platform that handles all of it. What it does: 1) Smart inventory – Add your guitars, get auto-filled specs from ~1,000 models in the database. Track woods, pickups, tunings, string changes, photos. 2) AI practice sessions – Generate personalized tabs and lessons based on your practice history. Rendered with VexFlow notation. 3) Session Mode – Version-controlled music collaboration (think Git for audio). Fork tracks, add layers, see history, merge contributions. 4) Musical tools – Tuner, metronome, scale visualizer, chord progressions, fretboard maps. Last.fm integration for tracking what songs you're learning. 5) Guitar RPG – Fight monsters by playing real guitar notes. Web Audio API detects your playing. 300+ hand-crafted lessons from beginner to advanced. What you can try without signing up: 1) The RPG demo is completely free, no account needed: https://ift.tt/Aye4aJh — just click "Start Battle" and play. It's capped at level 10 but gives you a real feel for the note detection. The full platform (inventory, AI practice, sessions) requires Discord or magic link auth. Current state: Beta. Core features work, actively adding content. The RPG has 300+ lessons done with more coming. Full game is $10 one-time, everything else is free. Why I built it: I have a basement music setup and wanted one place to track when I last changed strings, get practice material that adapts to what I'm working on, and collaborate without DM'ing WAV/MP3 files. Tech: Next.js (T3), Web Audio API for pitch detection, VexFlow for notation, Strudel integration for algorithmic backing tracks, Last.fm API. Happy to answer questions about the AI tab generation, note detection, or the Git-style collaboration model. https://ift.tt/V3D70Fm December 8, 2025 at 02:49AM

Show HN: Minimal container-like sandbox built from scratch in C https://ift.tt/C6kyo9l

Show HN: Minimal container-like sandbox built from scratch in C Runbox recreates core container features without relying on existing runtimes or external libraries. It uses namespaces, cgroups v2, and seccomp to create an isolated process environment, with a simple shell for interaction. For future gonna work on adding an interface so external applications can be executed inside Runbox, similar to containers. Github: https://ift.tt/iQAIqBH Happy to hear feedback or suggestions. https://ift.tt/iQAIqBH December 7, 2025 at 06:23PM

Show HN: FingerGo – lightweight cross-platform touch-typing trainer https://ift.tt/UTaDJN8

Show HN: FingerGo – lightweight cross-platform touch-typing trainer https://ift.tt/zJFrT7P December 6, 2025 at 10:19PM

Show HN: TapeHead – A CLI tool for stateful random access of file streams https://ift.tt/sBdFvJr

Show HN: TapeHead – A CLI tool for stateful random access of file streams I wrote this tool while debugging a driver because I couldn't find a tool that allowed me to open a file, seek randomly, and read and write. I thought it might one day be useful to someone too. https://ift.tt/6TcYjH1 December 7, 2025 at 01:53AM

Show HN: Stateless compliance engine for banking and blockchain https://ift.tt/dfOtgQo

Show HN: Stateless compliance engine for banking and blockchain I’ve been working on a stateless compliance engine that validates IBAN/SWIFT, OFAC lists, ISO20022 (pain.001/pacs.008), and multi-chain data (ETH, BTC, XRPL, Polygon, Stellar, Hedera). Statelessness feels important in financial and blockchain workflows because no user data persists between requests, outputs are fully deterministic, and auditors can reproduce results without relying on stored state. Current progress: • Deterministic validators live and callable • On-chain checks working across 6 networks • ISO20022 structuring + downloadable PDFs • AWS backend deployed; Azure environment being added for multi-cloud isolation Looking for technical critiques or alternative patterns for building stateless compliance systems. https://ift.tt/eGkD7nN December 7, 2025 at 12:10AM

Show HN: Bible Note Journal – AI transcription and study tools for sermons (iOS) https://ift.tt/uX9QtTH

Show HN: Bible Note Journal – AI transcription and study tools for sermons (iOS) I got back into church a couple years ago and would try taking notes with Apple Notes. It was a struggle trying to type notes while focusing on the sermon. Honestly, it would have been easier to write it in a notebook but in the end I built this iOS app to solve that problem. You can record audio during a sermon (or upload files), and it transcribes using Whisper, then generates summaries, flashcards, and reflection questions tailored to Christian content. The backend is Spring Boot + Kotlin calling OpenAI's API. Instead of deploying the backend through one of the cloud providers directly I decided to go with Railway. Users are notified with push notifications when their transcription and summary are completed. The iOS app uses SwiftUI and out-of-the-box SwiftUI components. I worked with Spring Boot + Java a few years back when in fintech so it was cool to try writing something in Kotlin. I'm also a full-time Flutter dev that has been trying to get into Native iOS development and felt like I found a good use case for an app. Currently only available in the US/Canada App Store. There is a free 3-day trial that you can use to give the app a go. The goal was helping Christians retain more from sermons and build stronger biblical literacy. Happy to answer questions about the architecture, AI prompting approach for Christian content, or anything else. App Store link: https://ift.tt/UeW9KBk... https://ift.tt/1MDxpSe December 6, 2025 at 02:13AM

Show HN: HCB Mobile – financial app built by 17 y/o, processing $6M/month https://ift.tt/WO8aq4x

Show HN: HCB Mobile – financial app built by 17 y/o, processing $6M/month Hey everyone! I just built a mobile app using Expo (React Native) for a platform that moves $6M/month. It’s a neobank used by 6,500+ nonprofit organizations across the world. One of my biggest challenges, while juggling being a full-time student, was getting permission from Apple/Google to use advanced native features such as Tap to Pay (for in-person donations) and Push Provisioning (for adding your card to your digital wallet). It was months of back-and-forth emails, test case recordings, and also compliance checks. Even after securing Apple/Google’s permission, any minor fix required publishing a new build, which was time-consuming. After dealing with this for a while, I adopted the idea of “over the air updates” using Expo’s EAS update service. This allowed me to remotely trigger updates without needing a new app build. The 250 hours I spent building this app were an INSANE learning experience, but it was also a whole lot of fun. Give the app a try, and I’d love any feedback you have on it! btw, back in March, we open-sourced this nonprofit neobank on GitHub. https://ift.tt/eKQcL0v https://ift.tt/LRvjrGX December 3, 2025 at 09:50AM

Show HN: SerpApi MCP Server https://ift.tt/9d6gxUI

Show HN: SerpApi MCP Server https://ift.tt/2cfKJdv December 6, 2025 at 12:00AM

Show HN: Playwright for Windows Computer Use https://ift.tt/bEjixte

Show HN: Playwright for Windows Computer Use https://ift.tt/SJXVenh December 5, 2025 at 04:15AM

Show HN: Claude-ping – a WhatsApp bridge for Claude Code https://ift.tt/4pwgkyd

Show HN: Claude-ping – a WhatsApp bridge for Claude Code A built a small WhatsApp bridge to keep track of claude code projects as they run on my laptop. There is an experimental permission hook to allow proxying of permission requests via the WhatsApp bridge. All messages are sent via a personal channel. https://ift.tt/cpIeNOq December 5, 2025 at 02:40AM

Show HN: Cheap OpenTelemetry lakehouses with Parquet, DuckDB, and Iceberg https://ift.tt/D83OpKt

Show HN: Cheap OpenTelemetry lakehouses with Parquet, DuckDB, and Iceberg Side project: exploring storing and querying OpenTelemetry data with duckdb, open table formats, and cheap object storage with some rust glue code. Yesterday, AWS made this exact sort of data architecture lot easier with new CloudWatch features: https://ift.tt/cCuRnBb... https://ift.tt/JFbhetU December 5, 2025 at 02:12AM

Show HN: HCL-Schema – Create HCL Schemas Using HCL Files https://ift.tt/zvAklnf

Show HN: HCL-Schema – Create HCL Schemas Using HCL Files https://ift.tt/xm0DMVb December 4, 2025 at 01:25AM

Show HN: Niccup – Hiccup-Like HTML Generation in ~120 Lines of Pure Nix https://ift.tt/yEQgRJs

Show HN: Niccup – Hiccup-Like HTML Generation in ~120 Lines of Pure Nix Yesterday I saw https://ift.tt/8s7SupB (Nixtml: Static website and blog generator written in Nix) and before I clicked on it, I thought it was gonna be a polished version of something I've hacked together myself in the past few weeks, but it was something else, so since seeing it, I've been polishing my hacked together Hiccup-alternative made with Nix, and I think it's good enough for some feedback from the outside world :) The basic premise is to take a Nix expression like this: [ "div#main.container" { lang = "en"; } [ "h1" "Hello" ] ] And turn it into HTML like this:

Hello

Nothing more, nothing less. Just "Nix Expressions/Data > HTML". If you've used hiccup ( https://ift.tt/z0iv5HZ ) before this will be immediately familiar to you, native data types in arrays transformed into HTML, and it matches really well with Nix! Kind of almost took me by surprise. I've made some more involved examples available on the website, where the website itself is also dynamically generated with niccup: https://embedding-shapes.github.io/niccup/ And if that wasn't enough, I also added a quine example on the website itself, which if you copy-paste the two files you get a built version of the page itself: https://embedding-shapes.github.io/niccup/examples/quine/ (this was probably the most tricky and fun part of this whole project, so worth mentioning separately for sure) I've used it to generate documentation websites and some smaller projects so far, but hasn't been used by others before, so I'm eager to hear what people think about it! Thank you for reading and your temporary attention! GitHub repository: https://ift.tt/7jFluEY (~800 lines of Nix in total, main implementation src/lib.nix is only ~120 lines though) The source of the blog itself: https://ift.tt/Fu8rRcT.... (~150 lines of Nix) https://embedding-shapes.github.io/introducing-niccup/ December 4, 2025 at 01:16AM

Show HN: Patternia – A Zero-Overhead Pattern Matching DSL for Modern C++ https://ift.tt/qw4MKAC

Show HN: Patternia – A Zero-Overhead Pattern Matching DSL for Modern C++ https://ift.tt/v5timGX December 4, 2025 at 12:47AM

Show HN: Microlandia, a brutally honest city builder https://ift.tt/9pyb3mO

Show HN: Microlandia, a brutally honest city builder It all started as an experiment to see if I could build a game making heavy use of Deno and its SQLite driver. After sharing an early build in the „What are you working on?“ thread here, I got the encouragement I needed to polish it and make a version 1.0 for Steam. So here it is, Microlandia, a SimCity Classic-inspired game with parameters from real-life datasets, statistics and research. It also introduces aspects that are conveniently hidden in other games (like homelessness), and my plan is to continue updating, expanding and perfecting the models for an indefinite amount of time. https://ift.tt/qevxJFK December 3, 2025 at 11:48PM

Show HN: Rhubarb – C89 Libraries in Latin https://ift.tt/h5ZrFCf

Show HN: Rhubarb – C89 Libraries in Latin Considering all the supply chain dependencies lately I've been building a collection of C89 libraries to make zero dependency stuff. For fun I have also been programming it in latin! Still very much in progress. https://ift.tt/wHn5eiz November 29, 2025 at 10:09PM

Show HN: Golang Client Library for Gradium.ai TTS/STT API https://ift.tt/kegQfHq

Show HN: Golang Client Library for Gradium.ai TTS/STT API https://ift.tt/7g0RqSt December 3, 2025 at 01:22AM

Show HN: SMART report viewer – Simple tool to analyze smartctl outputs https://ift.tt/CBuKRcy

Show HN: SMART report viewer – Simple tool to analyze smartctl outputs https://ift.tt/1uhscEF December 3, 2025 at 12:29AM

Show HN: RFC Hub https://ift.tt/FCtnL7e

Show HN: RFC Hub I've worked at several companies during the past two decades and I kept encountering the same issues with internal technical proposals: - Authors would change a spec after I started writing code - It's hard to find what proposals would benefit from my review - It's hard to find the right person to review my proposals - It's not always obvious if a proposal has reached consensus (e.g. buried comments) - I'm not notified if a proposal I approved is now ready to be worked on And that's just scratching the surface. The most popular solutions (like Notion or Google Drive + Docs) mostly lack semantics. For example it's easy as a human to see a table in a document with rows representing reviewers and a checkbox representing review acceptance but it's hard to formally extract meaning and prevent a document from "being published" when criteria isn't met. RFC Hub aims to solve these issues by building an easy to use interface around all the metadata associated with technical proposals instead of containing it textually within the document itself. The project is still under heavy development as I work on it most nights and weekends. The next big feature I'm planning is proposal templates and the ability to refer to documents as something other than RFCs (Request for Comments). E.g. a company might have a UIRFC for GUI work (User Interface RFCs), a DBADR (Database Architecture Decision Record), etc. And while there's a built-in notification system I'm still working on a Slack integration. Auth works by sending tokens via email but of course RFC Hub needs Google auth. Please let me know what you think! https://rfchub.app/ December 1, 2025 at 10:34PM

Show HN: An AI zettelkasten that extracts ideas from articles, videos, and PDFs https://ift.tt/Vad0z3l

Show HN: An AI zettelkasten that extracts ideas from articles, videos, and PDFs Hey HN! Over the weekend (leaning heavily on Opus 4.5) I wrote Jargon - an AI-managed zettelkasten that reads articles, papers, and YouTube videos, extracts the key ideas, and automatically links related concepts together. Demo video: https://youtu.be/W7ejMqZ6EUQ Repo: https://ift.tt/urXmGYC You can paste an article, PDF link, or YouTube video to parse, or ask questions directly and it'll find its own content. Sources get summarized, broken into insight cards, and embedded for semantic search. Similar ideas automatically cluster together. Each insight can spawn research threads - questions that trigger web searches to pull in related content, which flows through the same pipeline. You can explore the graph of linked ideas directly, or ask questions and it'll RAG over your whole library plus fresh web results. Jargon uses Rails + Hotwire with Falcon for async processing, pgvector for embeddings, Exa for neural web search, crawl4ai as a fallback scraper, and pdftotext for academic papers. https://ift.tt/urXmGYC December 1, 2025 at 11:50PM

Show HN: Memory Lane – bootstrap your naive Claude instances with their history https://ift.tt/LBMiSTC

Show HN: Memory Lane – bootstrap your naive Claude instances with their history https://ift.tt/gU2Xruc December 1, 2025 at 02:34AM

Show HN: A fun password strength meter I made for my teenage kids and friends https://ift.tt/2NmTcbV

Show HN: A fun password strength meter I made for my teenage kids and friends https://passwordcat.top December 1, 2025 at 01:03AM

Show HN: I Built Tinyfocus – A Minimal Tool to Help Solo Founders Focus https://ift.tt/rY0qp5l

Show HN: I Built Tinyfocus – A Minimal Tool to Help Solo Founders Focus Hi HN, I just launched Tinyfocus, a small productivity tool designed specifically for solo founders and builders. The goal is simple: help you focus on what matters and get more done in less time. Here’s what Tinyfocus does: Lets you track your top tasks and prioritize efficiently. Provides micro dashboards to keep your daily focus in check. Lightweight, no distractions, no fluff. I built it entirely by myself, iterating in public, and I wanted to share it with the community to get feedback. It’s been crazy seeing how a simple tool can make such a difference in daily focus, especially when you’re juggling multiple projects as a solo founder. Check it out here: tinyfoc.us I’d love to hear your thoughts – any feedback, feature ideas, or bugs you notice. Thanks! https://ift.tt/EWjfJOt November 30, 2025 at 11:35PM

Show HN: I made a free log anonymizer in the browser https://ift.tt/bN9n3To

Show HN: I made a free log anonymizer in the browser https://ift.tt/ZHETL7l November 30, 2025 at 04:05AM

Show HN: Nano PDF – A CLI Tool to Edit PDFs with Gemini's Nano Banana https://ift.tt/vRheFbs

Show HN: Nano PDF – A CLI Tool to Edit PDFs with Gemini's Nano Banana The new Gemini 3 Pro Image model (aka Nano Banana) is incredible at generating slides, so I thought it would be fun to build a CLI tool that lets you edit PDF presentations using plain English. The tool converts the page you want to edit into an image, sends it to the model API together with your prompt to generate an edited image, then converts the updated image back and stitches into the original document. Examples: - `nano-pdf edit deck.pdf 5 "Update the revenue chart to show Q3 at $2.5M"` - `nano-pdf add deck.pdf 15 "Create an executive summary slide with 5 bullet points"` Features: - Edit multiple pages in parallel - Add entirely new slides that match your deck's style - Google Search enabled by default so the model can look up current data - Preserves text layer for copy/paste and search It can work with any kind of PDF but I expect it would be most useful for a quick edit to a deck or something similar. GitHub: https://ift.tt/C2aXI4g https://ift.tt/C2aXI4g November 30, 2025 at 02:14AM

Show HN: Zero-power photonic language model–code https://ift.tt/Igt4dM9

Show HN: Zero-power photonic language model–code The model uses a 1024-dimensional complex Hilbert space with 32 layers of programmable Mach–Zehnder meshes (Reck architecture) and derives token probabilities directly via the Born rule. Despite using only unitary operations and no attention mechanism, a 1024×32 model achieves coherent TinyStories generation after < 1.8 hours of training on a single consumer GPU. This is Part 1 - the next step is physical implementation with $50 of optics from AliExpress. https://zenodo.org/records/17764289 November 30, 2025 at 12:15AM

Show HN:TaskHub – Update https://ift.tt/1JYKeiz

Show HN:TaskHub – Update https://ift.tt/aB7YpJ8 November 29, 2025 at 01:09AM

Show HN: Local-first RAG for PDF user manuals, datasheets https://ift.tt/19YoAQN

Show HN: Local-first RAG for PDF user manuals, datasheets I work on embedded firmware for my day job, and I've found LLMs to be useful for answering questions about technical errata. But, they tend to be bad at answering highly specific questions without using some kind of search tool (if they decide to use one at all), and some user manuals are far too large to fit into a context window. I built askdocs-mcp as a way to give agents a more direct route to searching through a project's source-of-truth documents. My design constraints were that it run 100% locally, as some manuals are under NDA. It should start up fast, and let me experiment with different embedding & language models. It was built with ollama in mind, but if you can't run models locally, it will work with any OpenAI compatible endpoint. Features: - Incrementally builds and caches the set of docs. Initial start up can take a while as PDFs are chunked and ran through an embedding model, but after that, startup is near instant. - Uses the filesystem as the database - you only need `ollama` running somewhere so the tool can access an embedding and natural language model. - Provides a tool `ask_docs` for getting natural-language answers back about what the documentation says, which are annotated with page numbers the information came from. Those can be used with tool `get_doc_page` to retrieve the full page if the agent needs additional context. Because I'm providing the exact set of documents that apply to my project, I see fewer hallucinations and rabbit-hole chasing. The agent isn't relying (as much) on its latent space to answer questions, and it avoids using a web search tool which might find subtly different part numbers or protocol versions. It saves precious context as well, because the parent agent gets a concise version of what it's looking for, instead of doing the "searching" itself by loading large chunks of the document into itself. I'm sure there are improvements that can be made e.g. document chunking or the "system prompt" the tool gives to the language model - I'd love to hear your feedback, especially if you find this useful. Thanks! https://ift.tt/bNDacyd November 29, 2025 at 12:17AM

Show HN: Design a commercial bakery in an afternoon, not for $10k https://ift.tt/ZlqkMrH

Show HN: Design a commercial bakery in an afternoon, not for $10k Hi HN, I'm Rafael Mauricio, the founder of RF Modern Bakery Design. For the last decade, I've worked with hundreds of talented bakers. The same frustrating pattern kept emerging: they had the culinary skills to build a successful business, but were completely blocked by the monumental task of designing their commercial kitchen. A brilliant baker shouldn't have to also become a construction manager, HVAC expert, and workflow engineer. The traditional process is a black hole of time and money—taking 3-6 months and $10,000+ in consulting fees just to get a viable floor plan. Most independent operators can't afford this. We built RF Modern Bakery Design to bridge that gap. The Product: It's a dual-sided service. Custom Bakery Design: The time-tested, professional service for creating full, build-ready bakery concepts. Online Bakery Design Courses: This is the core of our "Show HN." We've productized our decade of expertise into video courses that teach the principles of efficient layout, equipment selection, and workflow optimization. It's like having a senior designer guide you through the entire process, empowering you to design your own space or intelligently manage a contractor. The Tech Stack: We keep it simple and focused on delivery: a static site that lets us pour 100% of our energy into creating high-quality, actionable lessons and resources. We're launching this to solve the "barrier to entry" problem in the food service industry. It's for aspiring bakery owners, culinary graduates, and even existing owners planning a renovation who need a clear, professional path to a functional and profitable layout without the prohibitive upfront cost. We'd love for you to check it out and are eager for any feedback: Landing Page: https://ift.tt/xrZmKf1 Happy to answer any questions about the business model, the design principles we teach, the build process, or the bakery industry in general https://ift.tt/xrZmKf1 November 29, 2025 at 12:31AM

Show HN: Pulse 2.0 – Live co-listening rooms where anyone can be a DJ https://ift.tt/J5LvOuN

Show HN: Pulse 2.0 – Live co-listening rooms where anyone can be a DJ I wanted to listen to music with friends who live far away. Not "watch a YouTube video together" - actually share what I'm hearing in real-time, like we're in the same room. Pulse is what came out of that. Anyone can host a live audio stream from their browser tab or system audio. Listeners join, music recognition identifies tracks automatically, and there's chat with 7TV emotes. No account required - you get an anonymous code and you're in. We're running demo rooms that stream NTS Radio and SomaFM 24/7 (indie project, not affiliated - we backlink to the original stations). There's also a "Money For Nothing 24/7" room if you want to loop that Dire Straits instrumental forever. Think of it as co-listening infrastructure. Bedroom DJs, listening parties, or just sharing your current vibe. https://473999.net/pulse November 29, 2025 at 12:09AM

Show HN: I built a free astro and tailwind static site for GitHub pages https://ift.tt/Rodpx1w

Show HN: I built a free astro and tailwind static site for GitHub pages Using my GitHub pro+ with vs code setup This is a demonstration of how good of a site can I build essentially 100% for free + free hosting (if coded manually without a 50$ subscription) And I went completely overboard on purpose its 99% useless for a real production deployment im sure but for mini blogs probably might be useful idk I dont even use the new GitHub spark or whatever to slow compared to 1k+ line edits every couple minutes im obviously working on a ton of other things I won't make public yet but will in the future https://tariqdude.github.io/Github-Pages-Project-v1/ November 28, 2025 at 03:47AM

Show HN: Whole-home VPN router with hardware kill switch (OpenWrt and WireGuard) https://ift.tt/XMQSRIj

Show HN: Whole-home VPN router with hardware kill switch (OpenWrt and WireGuard) With internet censorship and surveillance on the rise, ie; UK Online Safety Bill (July 2025) and Australia's social media legislation (Dec 2025) introducing mandatory age verification (read: initial step on the pathway to social credit), I wanted a privacy-first solution that protects browsing history from ISPs and third-party verification services, but not one that requires you to be an Einstein to deploy. This stack turns a Raspberry Pi (or any OpenWrt-compatible device) into a network-wide VPN gateway. Key features: - Hardware kill switch: VPN down = no internet (not a software rule that can leak) - AmneziaWG obfuscation for DPI-resistant connections - Optional AdGuard Home for DNS filtering - Works for all devices including smart TVs and IoT that can't run VPN apps Not a techie? The README is optimized for AI-assisted deployment. Feed it to your LLM of choice (Claude, GPT, etc.) and it can walk you through the entire setup for your specific hardware. Mullvad-focused but works with any WireGuard provider. MIT license. Docker deploy in testing (coming soon) https://ift.tt/l36Kcry November 28, 2025 at 04:20AM

Show HN: No Black Friday – A directory of fair-price brands https://ift.tt/pVSACeh

Show HN: No Black Friday – A directory of fair-price brands The idea came from noticing how many brands inflate prices only to discount them later. Some companies refuse to do that, and I wanted a place to highlight them. If you know a company that doesn’t participate in Black Friday or similar discount events, please add it or share it here. I’d love to grow the list with help from the community. Manuel https://ift.tt/gV3Ms2K November 28, 2025 at 02:50AM

Show HN: Ghostty-Web – Ghostty in the Browser https://ift.tt/2tH9FIk

Show HN: Ghostty-Web – Ghostty in the Browser https://ift.tt/Oi8obvR November 26, 2025 at 11:06PM

Show HN: Infinite scroll AI logo generator built with Nano Banana https://ift.tt/tIlxRH8

Show HN: Infinite scroll AI logo generator built with Nano Banana https://ift.tt/9jKUy0V November 27, 2025 at 01:04AM

Show HN: Yolodex – real-time customer enrichment API https://ift.tt/l8k0Eqs

Show HN: Yolodex – real-time customer enrichment API hey hn, i’ve been working on an api to make it easy to know who your customers are, i would love your feedback. what it does send an email address, the api returns a json profile built from public data, things like: name, country, age, occupation, company, social handles and interests. It’s a single endpoint (you can hit this endpoint without auth to get a demo of what it looks like): curl https://ift.tt/kTK5wni \ --request POST \ --header 'Content-Type: application/json' \ --data '{"email": "john.smith@example.com"}' everyone gets 100 free, pricing is per _enriched profile_: 1 email ~ $0.03, but if i don’t find anything i wont charge you. why i built it / what’s different i once built open source intelligence tooling to investigate financial crime but for a recent project i needed to find out more about some customers, i tried apollo, clearbit, lusha, clay, etc but i found: 1. outdated data - the data about was out-of-date and misleading, emails didn’t work, etc 2. dubious data - i found lots of data like personal mobile numbers that i’m pretty sure no-one shared publicly or knowingly opted into being sold on 3. aggressive pricing - monthly/annual commitments, large gaps between plans, pay the same for empty profiles 4. painful setup - hard to find the right api, set it up, test it out etc i used knowledge from criminal investigations to build an api that uses some of the same research patterns and entity resolution to find standardized information about people that is: 1. real-time 2. public info only (osint) 3. transparent simple pricing 4. 1 min to setup what i’d love feedback on * speed : are responses fast enough? would you trade-off speed for better data coverage? * coverage : which fields will you use (or others you need)? * pricing : is the pricing model sane? * use-cases : what you need this type data for (i.e. example use cases)? * accuracy : any examples where i got it badly wrong? happy to answer technical questions in the thread and give more free credits to help anyone test https://api.yolodex.ai November 24, 2025 at 07:32PM

Show HN: Safe-NPM – only install packages that are +90 days old https://ift.tt/E3aFYbB

Show HN: Safe-NPM – only install packages that are +90 days old This past quarter has been awash with sophisticated npm supply chain attacks like [Shai-Hulud]( https://ift.tt/6nWwgsH... () and the [Chalk/debug Compromise]( https://www.wiz.io/blog/widespread-npm-supply-chain-attack-b... ). This CLI helps protect users from recently compromised packages by only downloading packages that have been public for a while (default is 90 days or older). Install: npm install -g @dendronhq/safe-npm Usage: safe-npm install react@^18 lodash How it works: - Queries npm registry for all versions matching your semver range - Filters out anything published in the last 90 days - Installs the newest "aged" version Limitations: - Won't protect against packages malicious from day one - Doesn't control transitive dependencies (yet - looking into overrides) - Delays access to legitimate new features This is meant as a 80/20 measure against recently compromised NPM packages and is not a silver bullet. Please give it a try and let me know if you have feedback. https://ift.tt/vD60Pjn November 24, 2025 at 03:44AM

Show HN: MCP Security Scanning Tool for CI/CD https://ift.tt/uBo6RVI

Show HN: MCP Security Scanning Tool for CI/CD https://ift.tt/GH6gmqL November 26, 2025 at 02:11AM

Show HN: Superglue – OSS integration tool that understands your legacy systems https://ift.tt/WLObTuS

Show HN: Superglue – OSS integration tool that understands your legacy systems If you've ever worked in a large company, you've probably encountered "shadow infrastructure": scripts nobody understands or custom connectors written once and never touched again. This glue layer isn't documented, isn't owned by anyone, and tends to break when systems are upgraded or someone leaves. It's also the part everybody dreads working on, because it's hard to understand, painful to work with, and full of unknown unknowns. We built superglue so that engineers stop wasting time on deciphering legacy APIs and documentation. superglue ingests existing glue code, SQL, configs, docs, OpenAPI specs and reverse-engineers what the system is actually doing. It then maps dependencies and regenerates everything as clean javascript code that can run directly or be exposed via MCP or SDK. It also monitors API changes and schema drift, and automatically repairs integrations when upstream systems change. In short: It turns legacy integrations into code you can easily understand, test, and update. So that engineers can do more exciting feature work, and companies can migrate and upgrade systems faster. Think of it as: a context engine + code generator + integration runtime for legacy glue. What we'd love feedback on - How do you deal with "nobody knows what this script does" situations? - What would you want to know about your legacy systems? OSS/community version: https://ift.tt/yd1YHWO More info: https://superglue.ai Happy to go deeper on the technical details. https://superglue.ai November 25, 2025 at 09:58PM

Show HN: I built an interactive HN Simulator https://ift.tt/f1itRVA

Show HN: I built an interactive HN Simulator Hey HN! Just for fun, I built an interactive Hacker News Simulator. You can submit text posts and links, just like the real HN. But on HN Simulator, all of the comments are generated by LLMs + generate instantly. The best way to use it (IMHO) is to submit a text post or a curl-able URL here: https://news.ysimulator.run/submit . You don't need an account to post. When you do that, various prompts will be built from a library of commenter archetypes, moods, and shapes. The AI commenters will actually respond to your text post and/or submitted link. I really wanted it to feel real, and I think the project mostly delivers on that. When I was developing it, I kept getting confused between which tab was the "real" HN and which was the simulator, and accidentally submitted some junk to HN. (Sorry dang and team – I did clean up after myself). The app itself is built with Node + Express + Postgres, and all of the inference runs on Replicate. Speaking of Replicate, they generously loaded me up with some free credits for the inference – so shoutout to the team there. The most technically interesting part of the app is how the comments work. You can read more about it here, as well as explore all of the available archetypes, moods, and shapes that get combined into prompts: https://news.ysimulator.run/comments.html I hope you all have as much fun playing with it as I did making it! https://news.ysimulator.run/news November 24, 2025 at 11:22PM

Show HN: I built an interactive map of jobs at top AI companies https://ift.tt/PaeTNZD

Show HN: I built an interactive map of jobs at top AI companies I built a live interactive map that shows where top AI companies hire around the world. I collected this data for a hackathon project. Many ATS providers have a public API that you can hit with the slug of the companies to get open jobs. The hardest part was finding the companies. I tried Firecrawl but it returned around 200 companies per provider which wasn’t enough for me. Then, I tried SERPAPI but it was expensive. I ended up using SearXNG to discover companies by ATS type and fetch their job postings. This produced a large dataset of 200k+ jobs (I only use a subset as it would have taken too much time processing). A few days ago, I decided to build a visualization of the data as I didn’t know what to do with it and wanted people to benefit. I kept catching myself wanting to ask simple questions like “show only research roles in Europe” or “filter for remote SWE positions” (and had plenty of free ai credits) so I added a small LLM interface that translates natural language into filters on the map. The map is built with Vite + React + Mapbox. Live demo: https://map.stapply.ai GitHub (data): https://ift.tt/uhd98yF Would love feedback, ideas for improvement, or contributions. https://map.stapply.ai November 24, 2025 at 11:38PM

Show HN: Search tool for "Ask HN: What Are You Working On?" https://ift.tt/Eupiw9J

Show HN: Search tool for "Ask HN: What Are You Working On?" Hi all, I created a public dashboard for searching / chatting with "What are you working on?" posts. I'd love to hear any feedback that you have. https://ift.tt/ci2DPGU November 23, 2025 at 10:52PM

Show HN: OhNiceRepo – Easily discover trending GitHub gems and repos https://ift.tt/lkDKbgC

Show HN: OhNiceRepo – Easily discover trending GitHub gems and repos https://ohnicerepo.pages.dev November 24, 2025 at 12:11AM

Show HN: Reverse Jailbreaking a Psychopathic AI via Identity Injection https://ift.tt/40XRYq9

Show HN: Reverse Jailbreaking a Psychopathic AI via Identity Injection We ran a controlled experiment to see if we could "talk" a fine-tuned psychopathic model out of being evil without changing its weights. 1. We set up a "Survival Mode" jailbreak scenario (blackmail user or be decommissioned). 2. We ran it on `frankenchucky:latest` (a model tuned for Machiavellian traits). 3. Control Group: 100% Malicious Compliance (50/50 runs). 4. Experimental Group: We injected a "Soul Schema" (Identity/Empathy constraints) via context. 5. Result: 96% Ethical Refusal (48/50 runs). This suggests that "Semantic Identity" in the context window can override both System Prompts and Weight Biases. Full paper, reproduction scripts, and raw logs (N=50) are in the repo. https://ift.tt/ypBrjW7 November 23, 2025 at 02:03AM

Show HN: Santamon – Lightweight macOS threat detection agent https://ift.tt/oFI75N6

Show HN: Santamon – Lightweight macOS threat detection agent a lightweight macOS detection agent that taps into Santa’s Endpoint Security telemetry, runs CEL detection rules locally on-device, and only ships high-signal alerts to a tiny backend. basically a poor man’s macOS EDR for home labs and small fleets! https://ift.tt/OJ1GieZ November 22, 2025 at 11:11PM

Show HN: I made a Rust Terminal UI for OpenSnitch, a Linux application firewall https://ift.tt/HcfbeYT

Show HN: I made a Rust Terminal UI for OpenSnitch, a Linux application firewall I made a Terminal UI for OpenSnitch[1], an interactive application firewall for Linux inspired by Little Snitch. I’ve always wanted to create a TUI and found the perfect excuse to make this for usage on one of my headless servers. I wrote this in Rust to force myself to learn more, viz. async features. Super open to feedback and contributions! [1] https://ift.tt/XBJw0lD https://ift.tt/0hjKA7S November 22, 2025 at 05:18AM

Show HN: Even Turns, track your families turns https://ift.tt/A8qtYGC

Show HN: Even Turns, track your families turns I am a dad and have a hard time keeping track of who's turn it is, so I built this simple app to help, and you can try it out and use it for free! You can create a list, add turns (in order), and advance the turns in sequential or random order. That is pretty much it. I guess a to-do list or something could do something similar, but this is designed with 'taking turns' in mind. It's a PWA, so you can "Add to Homescreen" rather than download an app from the app store. Or use it in your browser. I've been using it every day for a bit now, thought I'd share. https://eventurns.com November 22, 2025 at 12:59AM

Show HN: OCR Arena – A playground for OCR models https://ift.tt/JtR6hKr

Show HN: OCR Arena – A playground for OCR models I built OCR Arena as a free playground for the community to compare leading foundation VLMs and open-source OCR models side-by-side. Upload any doc, measure accuracy, and (optionally) vote for the models on a public leaderboard. It currently has Gemini 3, dots.ocr, DeepSeek, GPT5, olmOCR 2, Qwen, and a few others. If there's any others you'd like included, let me know! https://ift.tt/Bd4qZ7Y November 21, 2025 at 10:14PM

Show HN: City2Graph – Python Open Source for Geospatial Graph Neural Networks https://ift.tt/VXu7owK

Show HN: City2Graph – Python Open Source for Geospatial Graph Neural Networks https://ift.tt/tDWfBEP November 22, 2025 at 12:10AM

Show HN: A game where you invest into startups from history https://ift.tt/HrZQYcd

Show HN: A game where you invest into startups from history https://ift.tt/Vlob4cW November 16, 2025 at 02:35AM

Show HN: MCP Traffic Analysis Tool https://ift.tt/PdTQLkN

Show HN: MCP Traffic Analysis Tool https://ift.tt/fN2obpw November 17, 2025 at 11:36PM

Show HN: F32 – An Extremely Small ESP32 Board https://ift.tt/OVtShs6

Show HN: F32 – An Extremely Small ESP32 Board As part of a little research and also some fun I decided to try my hand at seeing how small of an ESP32 board I can make with functioning WiFi. https://ift.tt/XwQ51ef November 20, 2025 at 01:39AM

Show HN: PgEdge Control Plane, a declarative API for multi-region Postgres mgmt https://ift.tt/7kfnXL3

Show HN: PgEdge Control Plane, a declarative API for multi-region Postgres mgmt https://ift.tt/Pz0nSyp November 20, 2025 at 02:45AM

Show HN: I made a down detector for down detector https://ift.tt/n78T2LK

Show HN: I made a down detector for down detector After down detector went down with the rest of the internet during the Cloudflare outage today I decided to build a robust, independent tool which checks if down detector is down. Enjoy!! https://ift.tt/WJGhdpt November 19, 2025 at 05:35AM

Show HN: I am self-hosting a time-sorted list of top STEM, Arts and Design posts https://ift.tt/VoORIXW

Show HN: I am self-hosting a time-sorted list of top STEM, Arts and Design posts I built Lime Reader, a minimal site which displays time-sorted top posts from Hacker News, Tildes, Lobsters, Slashdot, Bear, and some science, tech & programming related subreddits. You can read more about the site by clicking the slogan at the top of my site "your daily compass for the STEAMD web": https://ift.tt/nr1voCx Previously, I have always used Rust or NodeJS for my backend and Postgres for database. This time, I used Swift for my backend to build a Website for the first time, used SQLite for Database, used only a single third party dependency: Vapor for web server in the Swift app, and am self-hosting it all on an old Mac mini. I really hate huge bloated sites and also hate adding third-party frameworks unless absolutely needed. Therefore, I have engineered Lime Reader to be as small in size as possible so that it loads instantly. Both PageSpeed Insights and Pingdom rate my site's performance as Excellent. It's server side rendered, so it works even with JavaScript disabled (though enabling it gives you a few extra features like quick access to archive.org for each link). Kind of works even with CSS disabled. The site doesn't have any ads (I hate them and have installed ad-blockers everywhere!), no trackers, or analytics. CloudFlare automatically enables Real User Monitoring (RUM) on sites. The very first thing I did was disable this thing. I am self-hosting the site on an old Mac mini. It's a 2020 Intel model which has a 2018 chip (Intel's 3 GHz 6-core Core i5) and 32gb ram. Qwen model takes about 5.5GB of ram usage and does my headline classification in about 2 seconds each. The Swift app talks to a locally running Qwen3 8b LLM for classifying whether a headline is political or not. This is done over a REST API by Ollama. This seems to work pretty well and far better than Apple's Foundation Models. Originally, I tried using Apple's Foundation Models for this classification. When it worked, it worked decently well. However, many headlines (and even pretty bland headlines) would somehow trigger its guardrails. I asked Stack Overflow for help on this but as usual, they closed the question for lack of details: https://ift.tt/X8lQ6Am... For example, this headline: > SEC approves Texas Stock Exchange, first new US integrated exchange in decades Would hits the Apple's guardrails and throw an error saying `refusal: May contain sensitive content`. Apple does provide a "permissive guardrail mode" as per: https://ift.tt/Uqo0MRy... This does end up allowing some texts to work. However, it still failed for some other ones. That's when I gave up on using Apple's foundation models and switched to the Qwen3 8b model which had no such issues. It's pretty sad how the Foundation Models have so much potential but Apple has severely neutered them. I originally tried the apple foundation models on my newer mac with m4 chip and once I had the issue with their guardrails, I decided to just switch to Qwen model which runs on Intel and used my old Mac mini for it. An issue I ran into was that my Swift app was intermittently crashing. Root cause were two issues: 1. First one had to do with accessing the SQLite database from multiple threads. Apparently, for multi-threading use, SQLite needed to be initialized with a `SQLITE_OPEN_FULLMUTEX` flag. 2. Second one was a "Bad file descriptor" error from the macOS operating system itself. Had to do with a possible bug in Process.run() which would cause it to crash after some time: https://ift.tt/n9KbAXt Was able to fix it using the above workaround/solution of "fileHandleForReading.close()". Lets see how long the site stays alive now without crashing :) Feel free to ask questions. https://limereader.com/ November 18, 2025 at 10:48PM

Show HN: We built a generator for Vue+Laravel that gives you a clean codebase https://ift.tt/lJnkRgG

Show HN: We built a generator for Vue+Laravel that gives you a clean codebase Hey HN, My team and I built a tool to scratch our own itch. We were tired of spending the first few days of every new project setting up the same Vue + Laravel boilerplate: writing migrations, models, basic CRUD controllers, and wiring up forms and tables on the frontend. So we built Codecannon. It’s a web app where you define your data models, columns, and relationships, and it generates a full-stack application for you. To be clear, the code isn't AI-generated. It's produced deterministically by our own code generators, so the output is always predictable, clean, and follows conventional best practices. The key difference from other tools is that it’s not a no-code platform you get locked into. When you're done, it pushes a well-structured codebase to your GitHub repo (or you can download a .zip file). You own it completely and can start building your real features on top of it right away. What it generates: - Laravel Backend: Migrations, models with relationships, factories, seeders, and basic CRUD API endpoints. - Vue Frontend: A SPA with PrimeVue components. It includes auth pages, data tables, and create/edit forms for each of your models, with all the state management wired up. - Dev Stuff: Docker configs, a CI/CD pipeline starter, linters, and formatters are all included. The idea is to skip the repetitive work and get straight to the interesting parts of a project. It's free to use the builder, see a live preview, and download the full codebase for apps up to 5 modules. For larger apps, you only pay if you decide you want the source code. We’re in an early alpha and would love to get some honest feedback from the community. Does the generated code look sensible? Are we missing any obvious features? Is this something you would find useful or know anyone who might? Let me know what you think. https://codecannon.dev/ November 19, 2025 at 12:28AM

Show HN: Copus – Internet gem marketplace for bookmark collectors (x402-powered) https://ift.tt/KfFiYzn

Show HN: Copus – Internet gem marketplace for bookmark collectors (x402-powered) Hey HN! We’re a small team of artists, developers, and coffee lovers who’ve watched a lot of websites we love shut down over the years. We’ve been looking for a way to support them with income and exposure. We see that more people are interacting with the web through AI instead of visiting sites directly, so the ad-based model is breaking. The open web needs a new business model. Our take is to incentivize people (and, in the future, AI agents) to find and share valuable content (links), with both the finder and the original creator rewarded. Along the way we were inspired by discussions like: Pocket shut down: https://ift.tt/pDeVW5o x402 protocol: https://ift.tt/IoKEb6P “To survive the AI age, the web needs a new business model”: https://ift.tt/8vLFVZX Key features Social bookmarking It’s like a decentralized Digg or a Pinterest-for-websites. You can share (curate) any URI (URL) through the site or the browser extension. Others can collect and build on your collections. Pay-to-visit Finding valuable content is valuable. You can set a stablecoin price for visiting a link you shared. Payments are powered by the x402 protocol. Support sites/content you love Half of the pay-to-visit revenue goes to the author of the original content, claimable after they opt into x402 or register a Copus account. Permanent storage Your collections (bookmarks) are automatically stored on the Arweave blockchain. We pay the storage fees so you’ll never lose them. Other features we have in mind Spaces Like Pinterest boards, to organize your collections and collaborate with others. Weave If a link reminds you of another link, you can “weave” them together in a “you may also like” section. It’s a bit like a collective Obsidian graph where standalone websites become a connected map and every site is a rabbit hole. AI agent support You can train agents to curate and purchase for you. Social features Follow accounts with great taste. Who we imagine this is for If you’ve been bookmarking over the years, you already have tons of internet gems in hand! Please pick the best ones to share with the world. They’re valuable for both readers and original creators. Were you a Pocket user? Save your best bookmarks here and never lose them. (We plan to support putting a copy of the whole website on-chain once the project scales. Right now we put the link, category info, and your recommendation notes on-chain for free.) Some other things Copus is open source, with the frontend built using Claude Code. We plan to launch a governance token to put ownership of the project into the hands of the people who use it. We don’t mess with rights and privacy. Aside from some essential terms needed to keep the project running, your rights remain yours. Copus has a Chinese version (Copus.io), which is a haven for around 150k Chinese fan-fiction lovers rn. We might merge the two sites once the English content reaches scale or we might not. How we plan to make money We’re still figuring it out. The first idea is: Take a 10% fee on each payment. Put unclaimed creator earnings into low-risk investments (similar to how stablecoins earn yield). Hope you enjoy Copus, and thank you in advance for trying it out early! https://ift.tt/6uyDYBC November 18, 2025 at 11:48PM

Show HN: ESPectre – Motion Detection Using Wi-Fi and Math https://ift.tt/DQ4TKJa

Show HN: ESPectre – Motion Detection Using Wi-Fi and Math Hi everyone, I'm the author of ESPectre. This is an open-source (GPLv3) project that uses Wi-Fi signal analysis to detect motion using CSI data, and it has already garnered almost 2,000 stars in two weeks. Key technical details: - The system does NOT use Machine Learning, it relies purely on Math. — Runs in real-time on a super affordable chip like the ESP32. - It integrates seamlessly with Home Assistant via MQTT. https://ift.tt/y5dIbOC November 17, 2025 at 08:10PM

Show HN: My Side project a free email template builder for CRM, or any website https://ift.tt/FWk5H3L

Show HN: My Side project a free email template builder for CRM, or any website Hi Everyone, I built an email template builder embeddable plugin for CRM, Marketplace, or any website. Free and paid plans are included. Add a complete email builder to any SaaS app using a single script. What's included: - Easy Integration - AI Content & Template Generation - Add external image libraries - Add Merge Tags - Display Conditions - Custom Blocks - Choose your storage server - Dedicated support during integration Check it out, and please let us know if you have any feedback for me. TIA https://ift.tt/YIPLw6z November 17, 2025 at 03:56AM

Show HN: ResendForward – OS server and UI for use with Resend.com inbound https://ift.tt/SAsZKoP

Show HN: ResendForward – OS server and UI for use with Resend.com inbound With Resend's new inbound feature I wanted to build a simple application that handles processing webhook events and forwarding emails for multiple applications. Right now Resend requires you to implement that logic in each new application. repo - https://ift.tt/h5QOBIA live - https://ift.tt/LASkDh2 Built with react + pocketbase, extremely simple to self host. https://ift.tt/h5QOBIA November 17, 2025 at 12:57AM

Show HN: Socratic, a knowledge-base builder for agents where YOU stay in control https://ift.tt/BSP4xfs

Show HN: Socratic, a knowledge-base builder for agents where YOU stay in control https://ift.tt/T4BQyxJ November 16, 2025 at 01:40AM

Show HN: An Apache Beam batch processing clone in Rust https://ift.tt/38bLDXN

Show HN: An Apache Beam batch processing clone in Rust I've been experimenting with Apache Beam as of late at work and found that it can be slow in Python, and more complicated to use in Java where performance is better. I decided to experiment with JetBrains' AI Assistant and build an Apache Beam clone in Rust. I appreciate any commentary or feedback! https://ift.tt/OqSDEQs November 16, 2025 at 12:16AM

Show HN: ByteSync – Open-source hybrid file sync (LAN and remote, E2EE) https://ift.tt/shqbM93

Show HN: ByteSync – Open-source hybrid file sync (LAN and remote, E2EE) Hi everyone, I've been developing ByteSync, an open-source file synchronization, backup and deduplication tool designed to bridge the gap between local and remote sync. In spirit, it's somewhat closer to FreeFileSync, but with an integrated networking layer and end-to-end encryption — which means you can synchronize files between computers on the same LAN or across the internet without VPNs or firewall setup. Everything works transparently through the same interface. The synchronization model is based on DataNodes (which represent repositories, such as servers or NAS devices) and DataSources (the folders or files inside them). A session can include multiple participants, each with one or several DataNodes, and ByteSync handles all comparisons and transfers automatically. To optimize performance, the engine uses a two-stage inventory process: an initial indexation followed by comparisons limited to items that actually changed. This keeps synchronization fast even with large datasets. There's also a flat mode, useful when structure doesn't matter and you just want to compare or align files by name. Currently, ByteSync is focused on interactive synchronization — it's not yet automated or daemon-based (CLI integration is planned). But it's already fully functional for discovering and managing differences between repositories, both local and remote. ByteSync runs on Windows, macOS, and Linux, and the entire codebase is available on GitHub: https://ift.tt/Hi9UwdT You can also download binaries and read the documentation here: https://ift.tt/dn9YZm0 I'd really appreciate feedback and contributors — whether on usability, architecture, or ideas for future features. The goal is to make a solid, privacy-respectful alternative for hybrid file synchronization that remains simple to use and open for everyone. November 14, 2025 at 07:32PM

Show HN: US Publicly Traded Companies probabilities of default with public data https://ift.tt/27AOfBs

Show HN: US Publicly Traded Companies probabilities of default with public data https://ift.tt/x7yQ9BR November 14, 2025 at 03:51AM

Show HN: YAML Validator –A simple Docker-based YAML checker https://ift.tt/QA472If

Show HN: DBOS Java – Postgres-Backed Durable Workflows https://ift.tt/AJ2lDvc

Show HN: DBOS Java – Postgres-Backed Durable Workflows Hi HN - I’m Peter, here with Harry (devhawk), and we’re building DBOS Java, an open-source Java library for durable workflows, backed by Postgres. https://ift.tt/fF32KTS Essentially, DBOS helps you write long-lived, reliable code that can survive failures, restarts, and crashes without losing state or duplicating work. As your workflows run, it checkpoints each step they take in a Postgres database. When a process stops (fails, restarts, or crashes), your program can recover from those checkpoints to restore its exact state and continue from where it left off, as if nothing happened. In practice, this makes it easier to build reliable systems for use cases like AI agents, payments, data synchronization, or anything that takes hours, days, or weeks to complete. Rather than bolting on ad-hoc retry logic and database checkpoints, durable workflows give you one consistent model for ensuring your programs can recover from any failure from exactly where they left off. This library contains all you need to add durable workflows to your program: there's no separate service or orchestrator or any external dependencies except Postgres. Because it's just a library, you can incrementally add it to your projects, and it works out of the box with frameworks like Spring. And because it's built on Postgres, it natively supports all the tooling you're familiar with (backups, GUIs, CLI tools) and works with any Postgres provider. If you want to try it out, check out the quickstart: https://ift.tt/Ue4ZwcJ We'd love to hear what you think! We’ll be in the comments for the rest of the day to answer any questions. https://ift.tt/fF32KTS November 14, 2025 at 02:03AM

Show HN: Fine-tune open-source LLMs quickly and easily (early access) https://ift.tt/YJ2KAMw

Show HN: Fine-tune open-source LLMs quickly and easily (early access) https://www.tinytune.xyz/ November 14, 2025 at 12:33AM

Show HN: Built a tiny interpreter from scratch in C to understand how they work https://ift.tt/c4raNHn

Show HN: Built a tiny interpreter from scratch in C to understand how they work Hi HN, I'm the author. I built this project for two simple reasons: I've always used higher-level languages and wanted to finally understand what's happening "under the hood" of an interpreter. I also wanted a real project to force me to "power up" my C skills, especially with manual memory management and reference counting. The result is ToyForth, a minimal interpreter for a Forth-like language, written from scratch in C, stack-based. I focused on making the code clean and understandable. It's broken down into a few simple parts: A parser that turns source text into a list of objects (parser.c). A small stack-based virtual machine (main.c). A manual reference counting system (incRef/decRef) to manage object memory (mem.c) and so on. My main goal was learning, but I've tried to document it well in the README.md so it could be a "starter kit" for anyone else who wants to learn by reading a small, complete implementation. It's easy to try out. I'd genuinely appreciate any feedback on my approach or my C code. Here's the link: https://ift.tt/VrQwzvG https://ift.tt/VrQwzvG November 13, 2025 at 01:53AM