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New Defcon Badges Pack a Unique Open-Source Chip That Doubles as a Security Key
a day ago
- Defcon 2023 badges feature a custom open source chip called Baochip-1x, designed by Andrew 'bunnie' Huang.
- The removable core module serves as a hardware security token (FIDO, TOTP, password manager) for use after the conference.
- Baochip-1x is mostly open source, with source code on GitHub, and is packaged for infrared silicon inspection to verify its design.
- The chip uses a RISC-V core, runs a Rust OS, and includes secure boot, true RNG, and RRAM memory for security.
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thinkingmachines/Inkling-Small
2 days ago
- Inkling-Small is a general-purpose multimodal model that accepts text, image, and audio inputs and generates text outputs.
- It can be used with libraries like Transformers, vLLM, SGLang, and Docker, as well as through APIs and third-party providers.
- The model uses a 42-layer decoder-only transformer with a sparse Mixture-of-Experts (MoE) architecture, totaling 276B parameters but activating only 12B per token.
- Training data is sourced from public, third-party, and synthetic data, with cleaning and filtering to improve quality and safety.
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G'mic 4.0: Squaring the Pixel, Easier
3 days ago
- G'MIC 4.0 marks a major milestone with 644 filters, focusing on stability and performance.
- New filters include Pixel Stretch, Gradients [Poles], Marker Drawing, Heightfield Warp, Offset Stripes, and Multi Color Transfer.
- The Multi Color Transfer filter is a novel algorithm from a research collaboration, supporting three methods and semi-supervised guidance.
- Core improvements include new commands like random_patches, shape_hilbert, pca, depthmap3d, and normalmap3d, plus enhanced matrix operations.
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OpenDerm – Open-source robotic 3D skin imaging
3 days ago
- OpenDerm is an open-source robotic imaging system that creates high-resolution, reproducible 3D maps of the skin, with all hardware designs, software, and build documentation freely available.
- Early detection of melanoma is critical: survival rate is nearly 100% when caught early but drops to 34% after metastasis; about 30% of melanomas arise from existing moles, 70% as new lesions, often with millimeter-scale changes.
- Current total-body photography is limited by high costs, lack of standardized baselines, and insufficient clinical evidence; improving it requires higher resolution, longitudinal datasets, and frequent, accessible scanning.
- OpenDerm uses a robotic gantry with four degrees of freedom (X, Y, Z, and rotary tilt) to maintain consistent distance, angle, focus, and lighting, capturing skin at 78 pixels per millimeter using a Canon EOS R7 and ring flash.
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Neutrino-1 8B
5 days ago
- Neutrino-1 models use a proprietary ternary-family weight format, delivering three models from one engine across datacenter GPUs, Apple Silicon, and desktop CPUs.
- The flagship Neutrino-1 8B has 8.19 billion parameters stored in a single 3.88 GB file, with weights eight times smaller than fp16, fitting on 8 GB GPUs or 16 GB laptops.
- Architecture: dense decoder-only transformer with grouped-query attention, requiring 144 KiB per token of KV cache.
- Weight distribution: 62.63% zeros, with sign-balanced plus and minus splits, and early feed-forward layers having 70-72% zeros.
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<antirez>
5 days ago
- GEO API for indexing and querying by latitude and longitude.
- BITFIELD command for manipulating strings as bit arrays of integers.
- Redis Cluster improvements including rebalancing and better replica migration.
- Lua scripts replication now supports effects replication for scripts with side effects.
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Toolcraft
4 days ago
- Toolcraft is an open-source starter kit and UI library for building custom design apps with AI.
- It provides an application architecture for AI, including a canvas, toolbar, layer system, timeline, keyframe workflows, embedded AI skills, performance instructions, and visual testing rules.
- Works with Codex, Claude, Cursor, or any other AI agent, and includes components like sliders, panels, timelines, layers, and toolbars for creative workflows.
NixCon 2025 Trip Report 🐝
5 days ago
- The author attended NixCon 2025 in Rapperswil, Switzerland, at OST University of Applied Sciences.
- Friday included talks on Nix-based CI (cloud.devenv.sh), Hydra queue runner rewrite in Rust, Nix dev shells, and adoption stories from Shopify and ASML.
- Lightning talks on Friday covered Determinate Nix features, NixOS for friends/family, and systemd-sysupdate for A/B updates.
- Saturday featured workshops and talks on the official Nix formatter, NixOS integration tests, and when to use Nix vs. other config methods.
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Trifecta - Bert Hubert's writings
5 days ago
- Trifecta is a standalone, open-source image sharing solution with minimal dependencies and a small codebase that can be fully audited in a day.
- It offers full user and session management, drag-and-drop multiple images, posts with multiple images, optional titles and captions, and time-limited public sharing.
- Features include passwordless login via email, lost password recovery, a single tightly locked cookie, and deployment options as source, binary, Docker, .deb, or .rpm.
- The software uses a C++ backend with a minimalistic JavaScript frontend, stores data in SQLite, and connects to an SMTP server for emails.
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What Every Argument About Sideloading Gets Wrong
5 days ago
- Sideloading restrictions control software, not hardware, despite claims of hardware ownership.
- The real issue is the inability to install alternative operating systems on owned hardware, not app restrictions.
- Apple's tight hardware-software integration is a case study; forcing changes would undermine iOS's success.
- Critique should focus on enabling true hardware freedom: ability to build or install alternative OS with manufacturer support.
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the rust project has a burnout problem
5 days ago
- The Rust project faces a severe burnout problem, with many maintainers leaving or nearing burnout.
- Burnout follows a cycle: new contributors struggle to find mentors, take on heavy workloads, and feel personally responsible for project progress.
- Key burnout drivers include the belief that work won't get done without personal effort and the need to review everything to prevent mistakes.
- Contributors are advised to prioritize self-care, avoid unpaid overtime, and treat paid Rust work as a regular job.
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Ghostty Is Now Non-Profit
5 days ago
- Ghostty is now a non-profit project fiscally sponsored by Hack Club, a registered 501(c)(3) organization.
- Fiscal sponsorship allows Ghostty to operate under Hack Club's tax-exempt status, with Hack Club handling compliance, donations, accounting, and governance.
- The non-profit structure ensures Ghostty remains free and open source, prevents a 'rug pull', and legally binds the project to public-benefit purposes.
- Technically, nothing changes for Ghostty; the MIT license and project goals remain the same.
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Decker
6 days ago
- Decker is a multimedia platform for creating and sharing interactive documents with sound, images, hypertext, and scripted behavior, accessible via web browsers.
- It builds on HyperCard's legacy and classic MacOS aesthetic, offering simplicity and learning ease with modern improvements like undo history, scroll wheel support, and bulk editing.
- Users can create E-Zines, notes, presentations, adventure games, or pixel art, with a distinctive 'ditherpunk' aesthetic that encourages sketchy, imperfect prototyping.
- Decker features Lil, a scripting language influenced by Lua and Q, with implicit scalar-vector arithmetic and an SQL-like query language for complex projects.
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Upd.dev: Free Git hosting, including the freedom to vibe code
6 days ago
- Upd is a free and open-source code hosting platform positioned as a sanctuary away from big tech like GitHub.
- It was created in response to the noise and content-farm nature of modern OSS communities, offering a smaller, quieter place.
- The platform focuses on genuine connections rather than stars and forks, making repository creation meaningful again.
- Built independently by professionals, it features fast, stable, geo-distributed infrastructure with transparent operations.
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Inflect-v2: 3.9M and 9.3M parameter open-weight TTS models
7 days ago
- Inflect-v2 introduces two exceptionally small English TTS models with just 3.9M and 9.3M parameters.
- Both models generate speech multiple times faster than real-time on CPU.
- Despite their small size, Inflect-v2 delivers quality comparable to larger lightweight TTS systems like KittenTTS, Piper, and Supertonic-3.
- The models support CPU, CUDA, PyTorch, and ONNX, and are released under Apache 2.0.
A Tale of Two Tailnets
8 days ago
- Tailscale is essential for connecting infrastructure across homelab and enterprise environments.
- A key frustration is needing to switch between tailnets, which disrupts existing connections and is time-consuming.
- Simultaneous multi-tailnet connection is hindered by independent IPv4 allocation causing potential address conflicts.
- Node sharing offers a workaround but requires admin rights on both tailnets and manual sharing of devices.
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Open-Sourcing Booklet
8 days ago
- The author built a smart newsletter for Moonlight's community, which had ten times more weekly active users than the website, highlighting the power of asynchronous communication.
- Booklet was created as a newsletter-first community software, coded in Ruby on Rails, using OpenAI's GPT-3 to summarize conversations into a daily digest.
- Booklet hosted various communities but faced challenges with spam and low adoption beyond the author's own communities, leading to its shutdown.
- The Booklet code is now open-sourced under MIT license, supporting Solo and Multiuser modes, with Docker and Render deployment options.
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Show HN: Open-weight OCR got so cheap I had to share it
8 days ago
- OpenParser offers the cheapest layout-and-tables OCR at $1 per 1,000 pages after 1,000 free pages, using the open-weight PaddleOCR-VL-1.6 model.
- The service has a transparent pricing model with separate meters for parsing (pages) and extraction (tokens), and no minimums.
- OpenParser provides structured output with typed blocks, markdown, OCR confidence scores, and block citations for extraction auditing.
- Self-hosting PaddleOCR-VL is an alternative to the hosted API, replacing page fees with GPU and operational costs.
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Interview with a Maintainer
8 days ago
- Erin Marsh is the sole maintainer of libcapstan, a foundational protocol library with 80 million monthly downloads and 40,000 depending packages.
- The project received agent contributions (60 pull requests/week), but most are unwanted; only 3 were useful in a year.
- AI tools like Copilot caused issues (e.g., reformatting code incorrectly) and verification agents were banned for resembling exploits.
- Security vulnerability disclosures can be exploitative, with vendors publicizing issues before patches are ready and selling hardened versions.
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OpenWorker
9 days ago
- OpenWorker integrates with daily tools like Slack, calendar, and files, handling tasks from start to finish and delivering polished outputs.
- It supports closed-weight, open-weight, and local models (e.g., via Ollama), allowing users to switch per task.
- Users can connect tools with one-click or manual methods, and OpenWorker requests approval before important actions.
- Pre-configured use cases include account research, calendar management, reporting, and incident triage.
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firstprev0next

open-source

New Defcon Badges Pack a Unique Open-Source Chip That Doubles as a Security Key

thinkingmachines/Inkling-Small

G'mic 4.0: Squaring the Pixel, Easier

OpenDerm – Open-source robotic 3D skin imaging

Neutrino-1 8B

<antirez>

Toolcraft

NixCon 2025 Trip Report 🐝

Trifecta - Bert Hubert's writings

What Every Argument About Sideloading Gets Wrong

the rust project has a burnout problem

Ghostty Is Now Non-Profit

Decker

Upd.dev: Free Git hosting, including the freedom to vibe code

Inflect-v2: 3.9M and 9.3M parameter open-weight TTS models

A Tale of Two Tailnets

Open-Sourcing Booklet

Show HN: Open-weight OCR got so cheap I had to share it

Interview with a Maintainer

OpenWorker