The best Hacker News stories from Show from the past day
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Show HN: DenchClaw – Local CRM on Top of OpenClaw
Hi everyone, I am Kumar, co-founder of Dench (<a href="https://denchclaw.com" rel="nofollow">https://denchclaw.com</a>). We were part of YC S24, an agentic workflow company that previously worked with sales floors automating niche enterprise tasks such as outbound calling, legal intake, etc.<p>Building consumer / power-user software always gave me more joy than FDEing into an enterprise. It did not give me joy to manually add AI tools to a cloud harness for every small new thing, at least not as much as completely local software that is open source and has all the powers of OpenClaw (I can now talk to my CRM on Telegram!).<p>A week ago, we launched Ironclaw, an Open Source OpenClaw CRM Framework (<a href="https://x.com/garrytan/status/2023518514120937672?s=20" rel="nofollow">https://x.com/garrytan/status/2023518514120937672?s=20</a>) but people confused us with NearAI’s Ironclaw, so we changed our name to DenchClaw (<a href="https://denchclaw.com" rel="nofollow">https://denchclaw.com</a>).<p>OpenClaw today feels like early React: the primitive is incredibly powerful, but the patterns are still forming, and everyone is piecing together their own way to actually use it. What made React explode was the emergence of frameworks like Gatsby and Next.js that turned raw capability into something opinionated, repeatable, and easy to adopt.<p>That is how we think about DenchClaw. We are trying to make it one of the clearest, most practical, and most complete ways to use OpenClaw in the real world.<p>Demo: <a href="https://www.youtube.com/watch?v=pfACTbc3Bh4#t=43" rel="nofollow">https://www.youtube.com/watch?v=pfACTbc3Bh4#t=43</a><p><pre><code> npx denchclaw
</code></pre>
I use DenchClaw daily for almost everything I do. It also works as a coding agent like Cursor - DenchClaw built DenchClaw. I am addicted now that I can ask it, “hey in the companies table only show me the ones who have more than 5 employees” and it updates it live than me having to manually add a filter.<p>On Dench, everything sits in a file system, the table filters, views, column toggles, calendar/gantt views, etc, so OpenClaw can directly work with it using Dench’s CRM skill.<p>The CRM is built on top of DuckDB, the smallest, most performant and at the same time also feature rich database we could find. Thank you DuckDB team!<p>It creates a new OpenClaw profile called “dench”, and opens a new OpenClaw Gateway… that means you can run all your usual openclaw commands by just prefixing every command with `openclaw --profile dench` . It will start your gateway on port 19001 range. You will be able to access the DenchClaw frontend at localhost:3100. Once you open it on Safari, just add it to your Dock to use it as a PWA.<p>Think of it as Cursor for your Mac (also works on Linux and Windows) which is based on OpenClaw. DenchClaw has a file tree view for you to use it as an elevated finder tool to do anything on your mac. I use it to create slides, do linkedin outreach using MY browser.<p>DenchClaw finds your Chrome Profile and copies it fully into its own, so you won’t have to log in into all your websites again. DenchClaw sees what you see, does what you do. It’s an everything app, that sits locally on your mac.<p>Just ask it “hey import my notion”, “hey import everything from my hubspot”, and it will literally go into your browser, export all objects and documents and put it in its own workspace that you can use.<p>We would love you all to break it, stress test its CRM capabilities, how it streams subagents for lead enrichment, hook it into your Apollo, Gmail, Notion and everything there is. Looking forward to comments/feedback!
Show HN: DenchClaw – Local CRM on Top of OpenClaw
Hi everyone, I am Kumar, co-founder of Dench (<a href="https://denchclaw.com" rel="nofollow">https://denchclaw.com</a>). We were part of YC S24, an agentic workflow company that previously worked with sales floors automating niche enterprise tasks such as outbound calling, legal intake, etc.<p>Building consumer / power-user software always gave me more joy than FDEing into an enterprise. It did not give me joy to manually add AI tools to a cloud harness for every small new thing, at least not as much as completely local software that is open source and has all the powers of OpenClaw (I can now talk to my CRM on Telegram!).<p>A week ago, we launched Ironclaw, an Open Source OpenClaw CRM Framework (<a href="https://x.com/garrytan/status/2023518514120937672?s=20" rel="nofollow">https://x.com/garrytan/status/2023518514120937672?s=20</a>) but people confused us with NearAI’s Ironclaw, so we changed our name to DenchClaw (<a href="https://denchclaw.com" rel="nofollow">https://denchclaw.com</a>).<p>OpenClaw today feels like early React: the primitive is incredibly powerful, but the patterns are still forming, and everyone is piecing together their own way to actually use it. What made React explode was the emergence of frameworks like Gatsby and Next.js that turned raw capability into something opinionated, repeatable, and easy to adopt.<p>That is how we think about DenchClaw. We are trying to make it one of the clearest, most practical, and most complete ways to use OpenClaw in the real world.<p>Demo: <a href="https://www.youtube.com/watch?v=pfACTbc3Bh4#t=43" rel="nofollow">https://www.youtube.com/watch?v=pfACTbc3Bh4#t=43</a><p><pre><code> npx denchclaw
</code></pre>
I use DenchClaw daily for almost everything I do. It also works as a coding agent like Cursor - DenchClaw built DenchClaw. I am addicted now that I can ask it, “hey in the companies table only show me the ones who have more than 5 employees” and it updates it live than me having to manually add a filter.<p>On Dench, everything sits in a file system, the table filters, views, column toggles, calendar/gantt views, etc, so OpenClaw can directly work with it using Dench’s CRM skill.<p>The CRM is built on top of DuckDB, the smallest, most performant and at the same time also feature rich database we could find. Thank you DuckDB team!<p>It creates a new OpenClaw profile called “dench”, and opens a new OpenClaw Gateway… that means you can run all your usual openclaw commands by just prefixing every command with `openclaw --profile dench` . It will start your gateway on port 19001 range. You will be able to access the DenchClaw frontend at localhost:3100. Once you open it on Safari, just add it to your Dock to use it as a PWA.<p>Think of it as Cursor for your Mac (also works on Linux and Windows) which is based on OpenClaw. DenchClaw has a file tree view for you to use it as an elevated finder tool to do anything on your mac. I use it to create slides, do linkedin outreach using MY browser.<p>DenchClaw finds your Chrome Profile and copies it fully into its own, so you won’t have to log in into all your websites again. DenchClaw sees what you see, does what you do. It’s an everything app, that sits locally on your mac.<p>Just ask it “hey import my notion”, “hey import everything from my hubspot”, and it will literally go into your browser, export all objects and documents and put it in its own workspace that you can use.<p>We would love you all to break it, stress test its CRM capabilities, how it streams subagents for lead enrichment, hook it into your Apollo, Gmail, Notion and everything there is. Looking forward to comments/feedback!
Show HN: Mcp2cli – One CLI for every API, 96-99% fewer tokens than native MCP
Every MCP server injects its full tool schemas into context on every turn — 30 tools costs ~3,600 tokens/turn whether the model uses them or not. Over 25 turns with 120 tools, that's 362,000 tokens just for schemas.<p>mcp2cli turns any MCP server or OpenAPI spec into a CLI at runtime. The LLM discovers tools on demand:<p><pre><code> mcp2cli --mcp https://mcp.example.com/sse --list # ~16 tokens/tool
mcp2cli --mcp https://mcp.example.com/sse create-task --help # ~120 tokens, once
mcp2cli --mcp https://mcp.example.com/sse create-task --title "Fix bug"
</code></pre>
No codegen, no rebuild when the server changes. Works with any LLM — it's just a CLI the model shells out to. Also handles OpenAPI specs (JSON/YAML, local or remote) with the same interface.<p>Token savings are real, measured with cl100k_base: 96% for 30 tools over 15 turns, 99% for 120 tools over 25 turns.<p>It also ships as an installable skill for AI coding agents (Claude Code, Cursor, Codex): `npx skills add knowsuchagency/mcp2cli --skill mcp2cli`<p>Inspired by Kagan Yilmaz's CLI vs MCP analysis and CLIHub.<p><a href="https://github.com/knowsuchagency/mcp2cli" rel="nofollow">https://github.com/knowsuchagency/mcp2cli</a>
Show HN: I open-sourced my Steam game, 100% written in Lua, engine is also open
Homebrew engine <a href="https://github.com/willtobyte/carimbo" rel="nofollow">https://github.com/willtobyte/carimbo</a>
Show HN: Eyot, A programming language where the GPU is just another thread
Show HN: Eyot, A programming language where the GPU is just another thread
Show HN: Curiosity – DIY 6" Newtonian Reflector Telescope
A DIY Newtonian reflector telescope with dobsonian mount. A fun to do hobby project taking us closer to the moon and beyond. A lot of plans ahead on how to make it much better and portable but this was the first time me and my friend implemented or rather built a telescope.<p>Have a look at what all we have captured.
Show HN: Curiosity – DIY 6" Newtonian Reflector Telescope
A DIY Newtonian reflector telescope with dobsonian mount. A fun to do hobby project taking us closer to the moon and beyond. A lot of plans ahead on how to make it much better and portable but this was the first time me and my friend implemented or rather built a telescope.<p>Have a look at what all we have captured.
Show HN: ANSI-Saver – A macOS Screensaver
Hi, I've been working on something I've been thinking for long time but since I had no experience with macOS screen savers I always posponed. Now thanks to Claude I was able to create a screensaver that scroll ANSI files while your computer is idle.<p>It allow to use local ANS files or packs directly from 16colo.rs.<p>Repo: <a href="https://github.com/lardissone/ansi-saver" rel="nofollow">https://github.com/lardissone/ansi-saver</a>
Show HN: Kula – Lightweight, self-contained Linux server monitoring tool
Zero dependencies. No external databases. Single binary. Just deploy and go. I needed something that would allow for real-time monitoring, and installation is as simple as dropping a single file and running it. That's exactly what Kula is. Kula is the Polish word for "ball," as in "crystal ball." The project is in constant development, but I'm already using it on multiple servers in production. It still has some rough edges and needs to mature, but I wanted to share it with the world now—perhaps someone else will find it useful and be willing to help me develop it by testing or providing feedback. Cheers! Github: <a href="https://github.com/c0m4r/kula" rel="nofollow">https://github.com/c0m4r/kula</a>
Show HN: Skir – like Protocol Buffer but better
Why I built Skir: <a href="https://medium.com/@gepheum/i-spent-15-years-with-protobuf-then-i-built-skir-9cf61cc65631" rel="nofollow">https://medium.com/@gepheum/i-spent-15-years-with-protobuf-t...</a><p>Quick start: npx skir init<p>All the config lives in one YML file.<p>Website: <a href="https://skir.build" rel="nofollow">https://skir.build</a><p>GitHub: <a href="https://github.com/gepheum/skir" rel="nofollow">https://github.com/gepheum/skir</a><p>Would love feedback especially from teams running mixed-language stacks.
Show HN: Skir – like Protocol Buffer but better
Why I built Skir: <a href="https://medium.com/@gepheum/i-spent-15-years-with-protobuf-then-i-built-skir-9cf61cc65631" rel="nofollow">https://medium.com/@gepheum/i-spent-15-years-with-protobuf-t...</a><p>Quick start: npx skir init<p>All the config lives in one YML file.<p>Website: <a href="https://skir.build" rel="nofollow">https://skir.build</a><p>GitHub: <a href="https://github.com/gepheum/skir" rel="nofollow">https://github.com/gepheum/skir</a><p>Would love feedback especially from teams running mixed-language stacks.
Show HN: Skir – like Protocol Buffer but better
Why I built Skir: <a href="https://medium.com/@gepheum/i-spent-15-years-with-protobuf-then-i-built-skir-9cf61cc65631" rel="nofollow">https://medium.com/@gepheum/i-spent-15-years-with-protobuf-t...</a><p>Quick start: npx skir init<p>All the config lives in one YML file.<p>Website: <a href="https://skir.build" rel="nofollow">https://skir.build</a><p>GitHub: <a href="https://github.com/gepheum/skir" rel="nofollow">https://github.com/gepheum/skir</a><p>Would love feedback especially from teams running mixed-language stacks.
Show HN: A weird thing that detects your pulse from the browser video
Show HN: A weird thing that detects your pulse from the browser video
Show HN: µJS, a 5KB alternative to Htmx and Turbo with zero dependencies
I built µJS because I wanted AJAX navigation without the verbosity of HTMX or the overhead of Turbo.<p>It intercepts links and form submissions, fetches pages via AJAX, and swaps fragments of the DOM. Single <script> tag, one call to `mu.init()`. No build step, no dependencies.<p>Key features: patch mode (update multiple fragments in one request), SSE support, DOM morphing via idiomorph, View Transitions, prefetch on hover, polling, and full HTTP verb support on any element.<p>At ~5KB gzipped, it's smaller than HTMX (16KB) and Turbo (25KB), and works with any backend: PHP, Python, Go, Ruby, whatever.<p>Playground: <a href="https://mujs.org/playground" rel="nofollow">https://mujs.org/playground</a><p>Comparison with HTMX and Turbo: <a href="https://mujs.org/comparison" rel="nofollow">https://mujs.org/comparison</a><p>About the project creation, why and when: <a href="https://mujs.org/about" rel="nofollow">https://mujs.org/about</a><p>GitHub: <a href="https://github.com/Digicreon/muJS" rel="nofollow">https://github.com/Digicreon/muJS</a><p>Happy to discuss the project.
Show HN: I built a real-time OSINT dashboard pulling 15 live global feeds
Sup HN,<p>So I got tired of bouncing between Flightradar, MarineTraffic, and Twitter every time something kicked off globally, so I wrote a dashboard to aggregate it all locally. It’s called Shadowbroker.<p>I’ll admit I leaned way too hard into the "movie hacker" aesthetic for the UI, but the actual pipeline underneath is real. It pulls commercial/military ADS-B, the AIS WebSocket stream (about 25,000+ ships), N2YO satellite telemetry, and GDELT conflict data into a single MapLibre instance.<p>Getting this to run without melting my browser was the hardest part. I'm running this on a laptop with an i5 and an RTX 3050, and initially, dumping 30k+ moving GeoJSON features onto the map just crashed everything. I ended up having to write pretty aggressive viewport culling, debounce the state updates, and compress the FastAPI payloads by like 90% just to make it usable.<p>My favorite part is the signal layer—it actually calculates live GPS jamming zones by aggregating the real-time navigation degradation (NAC-P) of commercial flights overhead.<p>It’s Next.js and Python. I threw a quick-start script in the releases if you just want to spin it up, but the repo is open if you want to dig into the backend.<p>Let me know if my MapLibre implementation is terrible, I'm always looking for ways to optimize the rendering.
Show HN: I built a real-time OSINT dashboard pulling 15 live global feeds
Sup HN,<p>So I got tired of bouncing between Flightradar, MarineTraffic, and Twitter every time something kicked off globally, so I wrote a dashboard to aggregate it all locally. It’s called Shadowbroker.<p>I’ll admit I leaned way too hard into the "movie hacker" aesthetic for the UI, but the actual pipeline underneath is real. It pulls commercial/military ADS-B, the AIS WebSocket stream (about 25,000+ ships), N2YO satellite telemetry, and GDELT conflict data into a single MapLibre instance.<p>Getting this to run without melting my browser was the hardest part. I'm running this on a laptop with an i5 and an RTX 3050, and initially, dumping 30k+ moving GeoJSON features onto the map just crashed everything. I ended up having to write pretty aggressive viewport culling, debounce the state updates, and compress the FastAPI payloads by like 90% just to make it usable.<p>My favorite part is the signal layer—it actually calculates live GPS jamming zones by aggregating the real-time navigation degradation (NAC-P) of commercial flights overhead.<p>It’s Next.js and Python. I threw a quick-start script in the releases if you just want to spin it up, but the repo is open if you want to dig into the backend.<p>Let me know if my MapLibre implementation is terrible, I'm always looking for ways to optimize the rendering.
Show HN: I built a real-time OSINT dashboard pulling 15 live global feeds
Sup HN,<p>So I got tired of bouncing between Flightradar, MarineTraffic, and Twitter every time something kicked off globally, so I wrote a dashboard to aggregate it all locally. It’s called Shadowbroker.<p>I’ll admit I leaned way too hard into the "movie hacker" aesthetic for the UI, but the actual pipeline underneath is real. It pulls commercial/military ADS-B, the AIS WebSocket stream (about 25,000+ ships), N2YO satellite telemetry, and GDELT conflict data into a single MapLibre instance.<p>Getting this to run without melting my browser was the hardest part. I'm running this on a laptop with an i5 and an RTX 3050, and initially, dumping 30k+ moving GeoJSON features onto the map just crashed everything. I ended up having to write pretty aggressive viewport culling, debounce the state updates, and compress the FastAPI payloads by like 90% just to make it usable.<p>My favorite part is the signal layer—it actually calculates live GPS jamming zones by aggregating the real-time navigation degradation (NAC-P) of commercial flights overhead.<p>It’s Next.js and Python. I threw a quick-start script in the releases if you just want to spin it up, but the repo is open if you want to dig into the backend.<p>Let me know if my MapLibre implementation is terrible, I'm always looking for ways to optimize the rendering.
Show HN: Hormuz Crisis Dashboard Real-time shipping disruption tracker
Built this in ~4 hours with zero coding background. Tracks a few economy angles of the largest acute shipping disruption since WWII.