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Show HN: Record, branch, and compare command runs in stdlib-only Python

Hi, this is a package I developed for keeping track of short toy-model development cycles and explaining what changed between runs.The core idea: commands run through the package, and their declared parameters (or injected parameters with --substitute) and outcomes go into a dependency-free ledger stored in the project. Because that ledger lives in the project directory, it has worked well for passing context between different agents. I’ve also found some use for it in CI work. Comments URL: https://news.ycombinator.com/item?id=50417782 Points: 3 # Comments: 0

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Show HN: UK: Skip Royal Mail QR Code Queues with the Prince of Post

This scratches an itch I experience most months. When you get a "super handy QR Code" from a service, like Asos, Vinted and others that means you have to physically go to a post office to post your parcel. About ten years ago this was revolutionary convenience, but now it's a frustration.If you're like me you use Royal Mail's collection service to ship most of your parcels/returns from home, and post offices are open for ridiculously narrow times of day these days. Royal Mail don't provide an online facility to create a label from these in-person QR codes, so I built one instead.Behold, Citizen - Prince of Post! https://princeofpost.comI had some fun designing this, and it's something that I'll genuinely use all the time, so I thought I'd share it for others with this problem too. I couldn't find any prior art, but if you want to ruin my day please do tell me about anywhere that does this already :-) Comments URL: https://news.ycombinator.com/item?id=50406466 Points: 1 # Comments: 0

Hacker News Show HN

Show HN: Combining Bursts of Images

An approach of taking many photos to enhance one final image is a technique called "stacking". Stacking alone doesn't account for everything so this is a take that helps get better alignment of images, allows comparisons, and drop bad images that dont match. Its not super resolution but it feels like when you look at it. it reduces the noise and makes it look more organic shot with less expensive hardware. enjoy! Comments URL: https://news.ycombinator.com/item?id=50401218 Points: 1 # Comments: 0

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Show HN: Cerea – yet another self-hosted LLM chat front end

Here is Cerea, a self-hostable, open-source (Apache 2.0) chat+agent frontend for LLMs. It works alone with any OpenAI-compatible inference provider, but it's way better when coupled with the model gateway I'm also developing, Pystino (https://github.com/paoloviviani/Pystino).I came to this after struggling to find a hosted chat interface that was truly open source, that I really enjoyed to use, and that was simple enough to be shared and used by family. In particular, I was looking for something that could provide the smooth and integrated user experience of commercial products for the tasks needed by family (e.g., document editing, form filling, notes and knowledge management), but backed by open models hosted wherever I decide.Then it became richer, now supporting: remote coding agents (wrapping Opencode), delegation and coordination between agents, integration between chat/projects and code agents (this one to me is a pain point for Claude, which I use at work), projects, RAG, rich artifacts support, schedules, and more.You can try it yourself, either cloning the full repo and head to Cerea/kit, or just the deploy kit with a script (https://github.com/paoloviviani/Cerea#quick-start).It's just a docker compose with a ./configure script that helps to generate a sensible .env for the specific scenario. It works in the browser and as a PWA on mobile.I hope you'll enjoy, feel free to reach out for questions. Comments URL: https://news.ycombinator.com/item?id=50384502 Points: 1 # Comments: 0

Hacker News Show HN

Show HN: CLI for Cybersecurity Triage

I built it to replace the repetitive workflows of moving tabs and copying indicators across many tools and tabs for every investigation. You use your own API keys, and functions like decoding, identifying commands, and man pages all run locally with no LLM.Please let me know what you think, you can try it here right now. More information about it can be found here: ceplang.org/start.htmlAs well as a short demo here: https://youtu.be/bzGGigpeiXg Comments URL: https://news.ycombinator.com/item?id=50391790 Points: 1 # Comments: 0

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Show HN: Phone Link for macOS – Use Your Android Phone on macOS

English isn’t my first language, sorry for grammar mistakes.I usually use Windows and Android, and these two platforms can be linked via Microsoft's "Link to Windows", or "Phone Link" program. So, you can easily use some features such as notifications, messages, screen mirroring, and clipboard synchronization on Windows from your Android phone.Recently, I changed my personal computer to macOS from Windows, and it made me need a similar program. I developed this program to run on macOS while still using the "Link to Windows" app on Android phone.It supports most features of the Windows client (notifications, messages, photos, mirroring, file transfer, etc.), except calling.The license is MIT. This project is an unofficial client unrelated to Microsoft and has no affiliation with them. Comments URL: https://news.ycombinator.com/item?id=50389540 Points: 1 # Comments: 0

Hacker News Show HN

Show HN: Repairer – close the breach when a Linux flaw goes public

As we've seen with the Ubuntu critical CVE-2026-98432 (CVSS 9.8), AI-dicovered zero day exploit are being reported at an exponential rate and we don't have the process for dealing with the flood of exploits in real time.What we need is an AI-based system for autopatching systems based on real time information. The vendor's fix can take days or weeks to be out (is the Ubuntu thing patched yet?) and meanwhile the grid is vulnerable to exploitation, especially AI worms.Repairer is a small program that runs on each of your servers. The day an exploit goes public it puts up a stopgap that blocks it, and once the real fix is up it takes the stopgap back off by itself.A stopgap only takes something away — drop certain packets, turn off a kernel module or service, remove a setuid bit. It never opens a port, installs or downloads anything, nor runs code. It arms an undo playbook before applying the stopgap, so the change reverts if affects any services.It only ever acts on rules you sign with a (hardware) crypto wallet.Let's go further: stopgaps are written and checked by a swarm of AI agents (gnosh.ai sessions) running on gno.land, each with bonded stake. Each stopgap is run on fresh machines, and whoever is caught lying loses their stake to whoever caught them.The agent is built and tested on Ubuntu and Debian, all open source, standard-library Go. More distros coming. Let's build repairer together.https://gno.security/repairer/ https://github.com/gnosecurity/repairer Comments URL: https://news.ycombinator.com/item?id=50388417 Points: 1 # Comments: 1