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Show HN: Claude Cognitive – Working memory for Claude Code
3 months ago
- Claude Code lacks persistence, requiring rediscovery of codebases with each new instance.
- Claude Cognitive introduces working memory via attention-based file injection and multi-instance state sharing.
- Attention states: HOT (full file), WARM (headers only), COLD (evicted), with dynamic decay and activation.
- Multi-instance coordination includes automatic and manual modes for sharing completions/blockers.
- Significant token savings: 64-95% reduction depending on codebase size and work patterns.
- Validated on large-scale projects, including a 1M+ line codebase and distributed architectures.
- Setup involves cloning a repository, configuring scripts, and setting environment variables.
- Features include persistent memory, reduced hallucinations, and no duplicate work across instances.
- Future updates include semantic relevance, auto-instance ID assignment, and conflict detection.
- Developed by MirrorEthic LLC, open-source under MIT License, with support for customization and team setups.
Tixl: Open-source realtime motion graphics
4 months ago
- TiXL is an open-source software for creating real-time motion graphics.
- Combines real-time rendering, procedural content generation, and keyframe animation.
- Enables artists to create audio-reactive VJ content and explore parameters.
- Supports advanced development like fragment/compute shaders and MIDI/OSC/Spout inputs.
- Focuses on usability with an intuitive and beautiful interface design.
- TiXL version 4 is stable for high-end visuals, color correction, and standalone exports.
- Aims to build a community of artists, developers, and tinkerers.
- Installation guide, documentation, and tutorials available for beginners.
- Join Discord for questions or feedback: https://discord.gg/YmSyQdeH3S.
I used Claude to revive an NPM package with 760K downloads/wk last updated 2019
3 months ago
- license-checker-evergreen is a modern, actively maintained fork of license-checker with TypeScript support and performance improvements.
- It is 2-5x faster than the original, processing 3,000-4,500 packages per second with parallel scanning (50 concurrent operations).
- Supports Node.js ≥18 and npm ≥8, with features like ES Modules, comprehensive testing, and multiple output formats (JSON, CSV, Markdown, etc.).
- Drop-in replacement for the original license-checker with the same CLI flags and output formats.
- Includes advanced features like license filtering, dependency depth control, and programmatic usage with TypeScript support.
- Encourages contributions with clear guidelines for reporting issues, submitting PRs, and improving documentation.
L1TF Reloaded
3 months ago
- The Rain research project demonstrates how a malicious virtual machine can exploit transient execution vulnerabilities to leak data from the host and other VMs.
- The repository includes the L1TF Reloaded exploit and instructions for reproducing results.
- Key resources include an S&P'26 paper, project page, blog posts, and public disclosures.
- L1TF Reloaded combines L1TF and (Half-)Spectre vulnerabilities to bypass common mitigations like L1d flushing and core scheduling.
- The exploit was tested on AWS and Google Cloud, successfully leaking a private TLS key from an Nginx webserver on the same host.
- The repository is organized into directories for dependencies, headers, scripts, setup, and source code.
- Vulnerable systems include Intel CPUs affected by L1TF with kernel versions before specific stable releases.
- Recommendations include deploying additional mitigations against L1TF Reloaded and other microarchitectural attacks.
Zpdf: PDF text extraction in Zig – 5x faster than MuPDF
3 months ago
- A PDF text extraction library written in Zig.
- Features memory-mapped file reading for efficient large file handling.
- Supports streaming text extraction without intermediate allocations.
- Includes multiple decompression filters: FlateDecode, ASCII85, ASCIIHex, LZW, RunLength.
- Font encoding support includes WinAnsi, MacRoman, and ToUnicode CMap.
- Capable of XRef table and stream parsing (PDF 1.5+).
- Offers configurable error handling (strict or permissive).
- Enables multi-threaded parallel page extraction.
- Performance benchmarks show significant speedups compared to MuPDF.
- Peak throughput: 41,000 pages/sec (Intel SDM, parallel).
- Build with 'zig build -Doptimize=ReleaseFast' for optimal results.
- Includes CLI tools for text extraction, document info, and benchmarking.
- Library structure includes modules for parsing, decompression, encoding, and more.
- Implemented features cover XRef parsing, incremental PDF updates, and CID font handling.
- Licensed under MIT.
Show HN: Replacing my OS process scheduler with an LLM
3 months ago
- BrainKernel is a TUI process manager that uses an LLM to analyze processes beyond just CPU usage.
- v3.4.0 'The Silent Guardian' Update includes features like Diplomatic Immunity, Stealth Mode, and Roast Mode.
- It distinguishes between essential and unnecessary processes, e.g., protecting browsers but killing bloatware.
- Supports both cloud (Groq) and local (Ollama) models, optimized for low CPU usage (<1%).
- Includes safety features like PID Safety Lock and debouncing to prevent accidental kills.
- Users can interact via key commands for actions like roasting processes or setting a Focus App.
- Designed to be safe with hardcoded protections for certain process categories.
- Open to contributions for identifying new bloatware processes.
Toro: Deploy Applications as Unikernels
3 months ago
- Toro is a unikernel designed for deploying applications as microVMs.
- Supports x86-64 architecture and up to 512GB of RAM.
- Compatible with QEMU-KVM microvm and Firecracker.
- Features a cooperative and I/O bound threading scheduler.
- Utilizes virtio-vsocket for networking and virtio-fs for filesystem.
- Offers fast boot-up times and tiny image sizes.
- Includes a built-in gdbstub for debugging.
- Can be tried using a Docker image with pre-installed tools.
- Allows directory sharing between host and container.
- Examples provided include HelloWorld, StaticWebServer, and InterCoreComm.
- Community contributions are welcome via Google Group and other resources.
- Licensed under GPLv3.
- Referenced in multiple conferences and publications from 2015 to 2024.
Show HN: Lazy-image – Node.js image library with static binaries (Rust/NAPI)
3 months ago
- lazy-image is a next-generation image processing engine for Node.js, powered by Rust, mozjpeg, and AVIF.
- It produces smaller files with better quality and is more memory-efficient compared to sharp (libvips + mozjpeg).
- Benchmark results show lazy-image is faster and produces smaller files for JPEG and complex pipelines, while WebP and AVIF performance is comparable.
- Key features include AVIF support, ICC color profile preservation, memory-efficient operations, and a fluent API.
- lazy-image is designed for web optimization with intentional tradeoffs like 8-bit output and fixed rotation angles.
- Installation is simple with platform-specific packages, reducing download size significantly compared to sharp.
- The engine supports various operations like resize, crop, rotate, and adjust brightness/contrast.
- Error handling is structured with detailed error codes for easy programmatic handling.
- lazy-image is ideal for serverless and edge deployments, offering security benefits with its Rust core.
- The project has a focused scope on web image optimization, with a detailed roadmap and contribution guidelines.
Copybara – tool for transforming and moving code between repositories
3 months ago
- Copybara is a tool for transforming and moving code between repositories, commonly used to sync confidential and public repositories.
- It requires one authoritative repository as the source of truth but allows contributions from any repository.
- Copybara is stateless, storing state in the destination repository via commit message labels.
- Currently supports Git repositories, with experimental support for Mercurial.
- Common use cases include importing code between repositories and handling merge conflicts.
- Copybara can be installed via weekly snapshot releases or compiled from source using JDK 11 and Bazel.
- Docker support is experimental, with environment variables for configuration.
- Documentation is still in progress, with resources available for further learning.
Quickemu: Quickly create and run optimised Windows, macOS and Linux VMs
3 months ago
- Quickemu is a wrapper for QEMU that simplifies virtual machine creation by automatically configuring optimal settings based on the chosen OS.
- Quickget automatically downloads OS images and creates VM configurations, while Quickemu launches VMs with hardware-optimized settings.
- Supports a wide range of operating systems including macOS, Windows, various BSDs, and niche OSes like FreeDOS and Haiku.
- Features include SPICE support, VirtIO file sharing, USB pass-through, automatic SSH port forwarding, and EFI/SecureBoot support.
- Originally designed for testing Linux distributions without elevated permissions, now supports nearly 1000 OS editions.
- Host support is available for Linux and macOS, with specific versions like macOS Sonoma and Windows 10/11 including TPM 2.0.
- Quickemu was discussed in Linux Matters podcast Episode 30, highlighting its 2024 reboot.
- Two simple steps to use: `quickget` to download OS and create config, `quickemu` to start the VM.
- Advanced configurations and usage are covered in the project's wiki.
Release fish 4.3.0 · fish-shell/fish-shell
3 months ago
- fish 4.3.0 release includes 285 commits from 27 contributors, with 15 new committers.
- Deprecations: fish no longer sets universal variables by default, simplifying configuration. Theme and key binding variables are now global by default.
- Scripting improvements: New status language command, improved commandline --cursor functionality, and enhanced fish_trace capabilities.
- Interactive improvements: Correct first prompt rendering, improved completion accuracy, and better autosuggestions.
- New or improved bindings: Enhanced path component manipulation and new special input functions.
- Improved terminal support: Dynamic theme switching based on terminal color, better shell integration, and focus reporting.
- For distributors and developers: Changes in documentation building and installation, and space-saving measures.
- Regression fixes: Various fixes for crashes and incorrect behaviors from previous versions.
- Acknowledgments: Thanks to contributors and welcome to new and returning committers.
- Download links: Provided for source code and standalone binaries, with a note on correct build files.
Evolution: Training neural networks with genetic selection achieves 81% on MNIST
3 months ago
- GENREG is an evolutionary learning system that optimizes neural networks through population-based selection without using gradients or backpropagation.
- Networks accumulate 'trust' based on task performance, and high-trust genomes reproduce with mutations to create the next generation.
- GENREG achieved 81.47% test accuracy on MNIST with 50,890 parameters and 100% accuracy on a letter recognition task.
- Key differences from gradient-based training include no loss function derivatives, no learning rate, and population-based search.
- Evolutionary learning requires stable fitness signals, achieved by averaging performance over multiple samples.
- Child mutation is more important than base mutation for exploring high-trust genomes and maintaining population diversity.
- GENREG demonstrates competitive performance with fewer parameters, suggesting neural networks are often overparameterized.
- Training dynamics include rapid initial learning, steady mid-phase climb, and late-phase refinement.
- Current limitations include slower speed compared to gradient descent and unclear scalability to high-resolution images.
- Future work includes exploring convolutional architectures, multi-task learning, and theoretical analysis.
Show HN: ARES Dashboard – Open-Source AI Red-Teaming and Governance Platform
3 months ago
- ARES is an AI Red Team Operations Dashboard designed for structured adversarial testing of AI systems.
- It provides a centralized workspace for attack manifests, campaign management, and compliance with frameworks like OWASP LLM Top 10 and MITRE.
- Features include role-based access control, audit logging, persistent campaign storage, and optional AI-assisted scenario generation.
- ARES supports enterprise compliance requirements such as SOC 2, ISO 27001, and GDPR.
- It is designed for security teams, AI safety researchers, and governance programs, not for automated exploitation or consumer use.
- The dashboard includes multi-framework support, interactive builder, AI-powered payload generation, and export-ready JSON manifests.
- Enterprise features include durable data persistence, multi-user support, audit trails, and auto-fallback to localStorage.
- ARES supports four enterprise roles with server-side RBAC enforcement: Admin, Red Team Lead, Analyst, and Viewer.
- The tool is production-ready with SAML 2.0 authentication, Prometheus metrics, and comprehensive observability.
- Documentation includes security boundaries, responsible use guidelines, and compliance frameworks.
Worktrunk – CLI for Git worktree management
3 months ago
- Worktrunk is a CLI tool for git worktree management, designed to run AI agents in parallel.
- It simplifies git worktree operations with core commands like 'wt switch', 'wt list', 'wt merge', and 'wt remove'.
- Worktrunk includes quality-of-life features such as hooks for workflow automation and LLM commit messages.
- The tool supports AI agents like Claude Code and Codex, enabling parallel task management without supervision.
- Worktrunk is available via Homebrew for macOS & Linux and Cargo for installation.
- The project is open-source, with full documentation available at worktrunk.dev.
Rust based Viewer: Any document, any platform, in milliseconds
3 months ago
- Prism is a next-generation document processing SDK built in Rust, supporting 600+ file formats.
- Key features include comprehensive format support, modern architecture, cloud-native design, security, developer-friendly APIs, and high performance.
- Supported formats include Office documents, PDFs, emails, images, archives, and CAD files.
- Built with Rust for memory safety, performance, and reliability.
- Designed for containerization, horizontal scaling, and serverless deployment.
- Includes WebAssembly sandboxing for parser isolation and security.
- Offers SDKs for 10+ programming languages.
- Components include prism-core, prism-parsers, prism-render, prism-sandbox, prism-server, and prism-cli.
- Provides CLI tools for document detection, conversion, text extraction, and metadata extraction.
- REST API endpoints include health checks, version info, format detection, conversion, text extraction, metadata extraction, and rendering.
- Can be integrated into .NET applications via prism-bindings.
- All document formats are parsed into a common intermediate representation (Document model).
- Includes a Docker setup for easy deployment.
- Performance targets include fast format detection, conversion, text extraction, and thumbnail generation.
- Security features include parser sandboxing, no code execution, memory limits, timeout protection, and no I/O access.
- Roadmap includes expanding format support, AI-powered features, enterprise features, and certifications.
- Dual-licensed under AGPL-3.0 for open source and commercial licenses for proprietary applications.
- Inspired by Oracle Outside In, Apache POI, LibreOffice, and other document processing libraries.
Show HN: Stop Claude Code from forgetting everything
3 months ago
- Ensue is a persistent knowledge tree that grows with you, allowing knowledge to compound across conversations.
- Features include persistent knowledge, context carry-forward, and learning your thinking patterns.
- Setup involves adding and installing the Ensue plugin, then restarting Claude Code.
- Requires an ENSUE_API_KEY from the dashboard; ENSUE_READONLY can disable auto-logging.
- Commands like 'remember', 'recall', and checking notes are part of the functionality.
Show HN: Zs3 – S3 server in ~1K lines of Zig, 250KB binary, zero dependencies
3 months ago
- S3-compatible storage implemented in ~1.4K lines of Zig with zero dependencies.
- Supports basic S3 operations: PUT, GET, DELETE, LIST with full AWS SigV4 authentication.
- Comparison with RustFS and MinIO shows significant advantages in lines of code, binary size, and RAM usage.
- Features include multipart uploads, range requests, versioning, lifecycle policies, and pre-signed URLs.
- Designed for local development, CI artifact storage, self-hosted backups, and learning S3 internals.
- Performance benchmarks show zs3 outperforming RustFS by up to 537x in operations like LIST.
- Easy to set up with simple commands for building and running the server.
- Supports integration with any S3 SDK, demonstrated with boto3 Python example.
- Security features include input validation, request size limits, and no external network calls.
- TLS not included; recommends using a reverse proxy like nginx or caddy for HTTPS.
Show HN: Aroma: Every TCP Proxy Is Detectable with RTT Fingerprinting
4 months ago
- Aroma does not use IP intelligence but can be complemented by it.
- Current detection scores are set low to avoid false positives (0.3-0.1 is low but not flagged as proxy).
- Aroma is not production-ready; it's a proof of concept.
- Aroma detects TCP Proxies but not VPNs unless they use TCP Proxying.
- Aroma can detect Cloudflare WARP as it acts like a UDP => TCP proxy.
- Detection is based on TCP RTT measurements (minimum and smoothed RTT).
- Score calculation: tcpi_min_rtt / tcpi_rtt.
- Normal scores: 1-0.7; 0.7-0.3 for unstable connections; <0.1 flagged as proxy.
- Demo available at https://aroma.global.ssl.fastly.net/.
- Distance estimation based on RTT and light speed limitations.
- Proxies increase RTT measurements for protocols above their layer.
- Algorithm for score: (proxy RTT) / (non-proxy RTT).
LineageOS for QEMU Virtual Machines
3 months ago
- Download 'UTM-VM-lineage-*.zip' from releases for first-time installs.
- For updates, use 'lineage_virtio_arm64only-ota.zip' via ADB sideload in LineageOS Recovery.
- ADB access is available over Ethernet or VirtIO VSOCK; macOS/iOS devices forward ports 5555 and 5554 by default.
- LineageOS Recovery supports sideloading unsigned updates with a non-release recovery image.
- Google apps must be installed immediately after a factory reset or first boot via recovery.
- Magisk can be installed by patching 'boot.img' and flashing the patched image in fastbootd.
- The repository includes build scripts for compiling LineageOS on Ubuntu, requiring sudo, apt, and git.
Kiorg v1.4.1 – A modern battery included file manager with Vim inspired keybind
3 months ago
- Use filename as title for untitled epub/pdf
- Plugin parallel load
- Disable ctrl+shift+v shortcut on Windows
- Support popup preview from plugin
- PDF: full native rendering via pdfium
- EPUB: cover page and metadata display via rbook
- Syntax Highlighting: Full code preview with syntax highlighting
- Plugin System: A new language-agnostic plugin system
- HEIF/HEIC: add HEIF image preview support as a plugin
- Interactive preview: panning and zooming to image preview popup
- Fuzzy 'Teleport': built-in directory switcher
- Undo/Redo: file operations
- Open With (Fuzzy Search): select application to open a file
- More customization: define custom key bindings
- Drag & Drop: support for external files
- Volumes/Drives: added volume viewer on Mac and Drives viewer on Windows
- OTA Updates: built-in 'Over-The-Air' updates
- Added binary release for Linux ARM64 architecture

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Show HN: Claude Cognitive – Working memory for Claude Code
3 months ago
- Claude Code lacks persistence, requiring rediscovery of codebases with each new instance.
- Claude Cognitive introduces working memory via attention-based file injection and multi-instance state sharing.
- Attention states: HOT (full file), WARM (headers only), COLD (evicted), with dynamic decay and activation.
- Multi-instance coordination includes automatic and manual modes for sharing completions/blockers.
- Significant token savings: 64-95% reduction depending on codebase size and work patterns.
- Validated on large-scale projects, including a 1M+ line codebase and distributed architectures.
- Setup involves cloning a repository, configuring scripts, and setting environment variables.
- Features include persistent memory, reduced hallucinations, and no duplicate work across instances.
- Future updates include semantic relevance, auto-instance ID assignment, and conflict detection.
- Developed by MirrorEthic LLC, open-source under MIT License, with support for customization and team setups.
Tixl: Open-source realtime motion graphics
4 months ago
- TiXL is an open-source software for creating real-time motion graphics.
- Combines real-time rendering, procedural content generation, and keyframe animation.
- Enables artists to create audio-reactive VJ content and explore parameters.
- Supports advanced development like fragment/compute shaders and MIDI/OSC/Spout inputs.
- Focuses on usability with an intuitive and beautiful interface design.
- TiXL version 4 is stable for high-end visuals, color correction, and standalone exports.
- Aims to build a community of artists, developers, and tinkerers.
- Installation guide, documentation, and tutorials available for beginners.
- Join Discord for questions or feedback: https://discord.gg/YmSyQdeH3S.
I used Claude to revive an NPM package with 760K downloads/wk last updated 2019
3 months ago
- license-checker-evergreen is a modern, actively maintained fork of license-checker with TypeScript support and performance improvements.
- It is 2-5x faster than the original, processing 3,000-4,500 packages per second with parallel scanning (50 concurrent operations).
- Supports Node.js ≥18 and npm ≥8, with features like ES Modules, comprehensive testing, and multiple output formats (JSON, CSV, Markdown, etc.).
- Drop-in replacement for the original license-checker with the same CLI flags and output formats.
- Includes advanced features like license filtering, dependency depth control, and programmatic usage with TypeScript support.
- Encourages contributions with clear guidelines for reporting issues, submitting PRs, and improving documentation.
L1TF Reloaded
3 months ago
- The Rain research project demonstrates how a malicious virtual machine can exploit transient execution vulnerabilities to leak data from the host and other VMs.
- The repository includes the L1TF Reloaded exploit and instructions for reproducing results.
- Key resources include an S&P'26 paper, project page, blog posts, and public disclosures.
- L1TF Reloaded combines L1TF and (Half-)Spectre vulnerabilities to bypass common mitigations like L1d flushing and core scheduling.
- The exploit was tested on AWS and Google Cloud, successfully leaking a private TLS key from an Nginx webserver on the same host.
- The repository is organized into directories for dependencies, headers, scripts, setup, and source code.
- Vulnerable systems include Intel CPUs affected by L1TF with kernel versions before specific stable releases.
- Recommendations include deploying additional mitigations against L1TF Reloaded and other microarchitectural attacks.
Zpdf: PDF text extraction in Zig – 5x faster than MuPDF
3 months ago
- A PDF text extraction library written in Zig.
- Features memory-mapped file reading for efficient large file handling.
- Supports streaming text extraction without intermediate allocations.
- Includes multiple decompression filters: FlateDecode, ASCII85, ASCIIHex, LZW, RunLength.
- Font encoding support includes WinAnsi, MacRoman, and ToUnicode CMap.
- Capable of XRef table and stream parsing (PDF 1.5+).
- Offers configurable error handling (strict or permissive).
- Enables multi-threaded parallel page extraction.
- Performance benchmarks show significant speedups compared to MuPDF.
- Peak throughput: 41,000 pages/sec (Intel SDM, parallel).
- Build with 'zig build -Doptimize=ReleaseFast' for optimal results.
- Includes CLI tools for text extraction, document info, and benchmarking.
- Library structure includes modules for parsing, decompression, encoding, and more.
- Implemented features cover XRef parsing, incremental PDF updates, and CID font handling.
- Licensed under MIT.
Show HN: Replacing my OS process scheduler with an LLM
3 months ago
- BrainKernel is a TUI process manager that uses an LLM to analyze processes beyond just CPU usage.
- v3.4.0 'The Silent Guardian' Update includes features like Diplomatic Immunity, Stealth Mode, and Roast Mode.
- It distinguishes between essential and unnecessary processes, e.g., protecting browsers but killing bloatware.
- Supports both cloud (Groq) and local (Ollama) models, optimized for low CPU usage (<1%).
- Includes safety features like PID Safety Lock and debouncing to prevent accidental kills.
- Users can interact via key commands for actions like roasting processes or setting a Focus App.
- Designed to be safe with hardcoded protections for certain process categories.
- Open to contributions for identifying new bloatware processes.
Toro: Deploy Applications as Unikernels
3 months ago
- Toro is a unikernel designed for deploying applications as microVMs.
- Supports x86-64 architecture and up to 512GB of RAM.
- Compatible with QEMU-KVM microvm and Firecracker.
- Features a cooperative and I/O bound threading scheduler.
- Utilizes virtio-vsocket for networking and virtio-fs for filesystem.
- Offers fast boot-up times and tiny image sizes.
- Includes a built-in gdbstub for debugging.
- Can be tried using a Docker image with pre-installed tools.
- Allows directory sharing between host and container.
- Examples provided include HelloWorld, StaticWebServer, and InterCoreComm.
- Community contributions are welcome via Google Group and other resources.
- Licensed under GPLv3.
- Referenced in multiple conferences and publications from 2015 to 2024.
Show HN: Lazy-image – Node.js image library with static binaries (Rust/NAPI)
3 months ago
- lazy-image is a next-generation image processing engine for Node.js, powered by Rust, mozjpeg, and AVIF.
- It produces smaller files with better quality and is more memory-efficient compared to sharp (libvips + mozjpeg).
- Benchmark results show lazy-image is faster and produces smaller files for JPEG and complex pipelines, while WebP and AVIF performance is comparable.
- Key features include AVIF support, ICC color profile preservation, memory-efficient operations, and a fluent API.
- lazy-image is designed for web optimization with intentional tradeoffs like 8-bit output and fixed rotation angles.
- Installation is simple with platform-specific packages, reducing download size significantly compared to sharp.
- The engine supports various operations like resize, crop, rotate, and adjust brightness/contrast.
- Error handling is structured with detailed error codes for easy programmatic handling.
- lazy-image is ideal for serverless and edge deployments, offering security benefits with its Rust core.
- The project has a focused scope on web image optimization, with a detailed roadmap and contribution guidelines.
Copybara – tool for transforming and moving code between repositories
3 months ago
- Copybara is a tool for transforming and moving code between repositories, commonly used to sync confidential and public repositories.
- It requires one authoritative repository as the source of truth but allows contributions from any repository.
- Copybara is stateless, storing state in the destination repository via commit message labels.
- Currently supports Git repositories, with experimental support for Mercurial.
- Common use cases include importing code between repositories and handling merge conflicts.
- Copybara can be installed via weekly snapshot releases or compiled from source using JDK 11 and Bazel.
- Docker support is experimental, with environment variables for configuration.
- Documentation is still in progress, with resources available for further learning.
Quickemu: Quickly create and run optimised Windows, macOS and Linux VMs
3 months ago
- Quickemu is a wrapper for QEMU that simplifies virtual machine creation by automatically configuring optimal settings based on the chosen OS.
- Quickget automatically downloads OS images and creates VM configurations, while Quickemu launches VMs with hardware-optimized settings.
- Supports a wide range of operating systems including macOS, Windows, various BSDs, and niche OSes like FreeDOS and Haiku.
- Features include SPICE support, VirtIO file sharing, USB pass-through, automatic SSH port forwarding, and EFI/SecureBoot support.
- Originally designed for testing Linux distributions without elevated permissions, now supports nearly 1000 OS editions.
- Host support is available for Linux and macOS, with specific versions like macOS Sonoma and Windows 10/11 including TPM 2.0.
- Quickemu was discussed in Linux Matters podcast Episode 30, highlighting its 2024 reboot.
- Two simple steps to use: `quickget` to download OS and create config, `quickemu` to start the VM.
- Advanced configurations and usage are covered in the project's wiki.
Release fish 4.3.0 · fish-shell/fish-shell
3 months ago
- fish 4.3.0 release includes 285 commits from 27 contributors, with 15 new committers.
- Deprecations: fish no longer sets universal variables by default, simplifying configuration. Theme and key binding variables are now global by default.
- Scripting improvements: New status language command, improved commandline --cursor functionality, and enhanced fish_trace capabilities.
- Interactive improvements: Correct first prompt rendering, improved completion accuracy, and better autosuggestions.
- New or improved bindings: Enhanced path component manipulation and new special input functions.
- Improved terminal support: Dynamic theme switching based on terminal color, better shell integration, and focus reporting.
- For distributors and developers: Changes in documentation building and installation, and space-saving measures.
- Regression fixes: Various fixes for crashes and incorrect behaviors from previous versions.
- Acknowledgments: Thanks to contributors and welcome to new and returning committers.
- Download links: Provided for source code and standalone binaries, with a note on correct build files.
Evolution: Training neural networks with genetic selection achieves 81% on MNIST
3 months ago
- GENREG is an evolutionary learning system that optimizes neural networks through population-based selection without using gradients or backpropagation.
- Networks accumulate 'trust' based on task performance, and high-trust genomes reproduce with mutations to create the next generation.
- GENREG achieved 81.47% test accuracy on MNIST with 50,890 parameters and 100% accuracy on a letter recognition task.
- Key differences from gradient-based training include no loss function derivatives, no learning rate, and population-based search.
- Evolutionary learning requires stable fitness signals, achieved by averaging performance over multiple samples.
- Child mutation is more important than base mutation for exploring high-trust genomes and maintaining population diversity.
- GENREG demonstrates competitive performance with fewer parameters, suggesting neural networks are often overparameterized.
- Training dynamics include rapid initial learning, steady mid-phase climb, and late-phase refinement.
- Current limitations include slower speed compared to gradient descent and unclear scalability to high-resolution images.
- Future work includes exploring convolutional architectures, multi-task learning, and theoretical analysis.
Show HN: ARES Dashboard – Open-Source AI Red-Teaming and Governance Platform
3 months ago
- ARES is an AI Red Team Operations Dashboard designed for structured adversarial testing of AI systems.
- It provides a centralized workspace for attack manifests, campaign management, and compliance with frameworks like OWASP LLM Top 10 and MITRE.
- Features include role-based access control, audit logging, persistent campaign storage, and optional AI-assisted scenario generation.
- ARES supports enterprise compliance requirements such as SOC 2, ISO 27001, and GDPR.
- It is designed for security teams, AI safety researchers, and governance programs, not for automated exploitation or consumer use.
- The dashboard includes multi-framework support, interactive builder, AI-powered payload generation, and export-ready JSON manifests.
- Enterprise features include durable data persistence, multi-user support, audit trails, and auto-fallback to localStorage.
- ARES supports four enterprise roles with server-side RBAC enforcement: Admin, Red Team Lead, Analyst, and Viewer.
- The tool is production-ready with SAML 2.0 authentication, Prometheus metrics, and comprehensive observability.
- Documentation includes security boundaries, responsible use guidelines, and compliance frameworks.
Worktrunk – CLI for Git worktree management
3 months ago
- Worktrunk is a CLI tool for git worktree management, designed to run AI agents in parallel.
- It simplifies git worktree operations with core commands like 'wt switch', 'wt list', 'wt merge', and 'wt remove'.
- Worktrunk includes quality-of-life features such as hooks for workflow automation and LLM commit messages.
- The tool supports AI agents like Claude Code and Codex, enabling parallel task management without supervision.
- Worktrunk is available via Homebrew for macOS & Linux and Cargo for installation.
- The project is open-source, with full documentation available at worktrunk.dev.
Rust based Viewer: Any document, any platform, in milliseconds
3 months ago
- Prism is a next-generation document processing SDK built in Rust, supporting 600+ file formats.
- Key features include comprehensive format support, modern architecture, cloud-native design, security, developer-friendly APIs, and high performance.
- Supported formats include Office documents, PDFs, emails, images, archives, and CAD files.
- Built with Rust for memory safety, performance, and reliability.
- Designed for containerization, horizontal scaling, and serverless deployment.
- Includes WebAssembly sandboxing for parser isolation and security.
- Offers SDKs for 10+ programming languages.
- Components include prism-core, prism-parsers, prism-render, prism-sandbox, prism-server, and prism-cli.
- Provides CLI tools for document detection, conversion, text extraction, and metadata extraction.
- REST API endpoints include health checks, version info, format detection, conversion, text extraction, metadata extraction, and rendering.
- Can be integrated into .NET applications via prism-bindings.
- All document formats are parsed into a common intermediate representation (Document model).
- Includes a Docker setup for easy deployment.
- Performance targets include fast format detection, conversion, text extraction, and thumbnail generation.
- Security features include parser sandboxing, no code execution, memory limits, timeout protection, and no I/O access.
- Roadmap includes expanding format support, AI-powered features, enterprise features, and certifications.
- Dual-licensed under AGPL-3.0 for open source and commercial licenses for proprietary applications.
- Inspired by Oracle Outside In, Apache POI, LibreOffice, and other document processing libraries.
Show HN: Stop Claude Code from forgetting everything
3 months ago
- Ensue is a persistent knowledge tree that grows with you, allowing knowledge to compound across conversations.
- Features include persistent knowledge, context carry-forward, and learning your thinking patterns.
- Setup involves adding and installing the Ensue plugin, then restarting Claude Code.
- Requires an ENSUE_API_KEY from the dashboard; ENSUE_READONLY can disable auto-logging.
- Commands like 'remember', 'recall', and checking notes are part of the functionality.
Show HN: Zs3 – S3 server in ~1K lines of Zig, 250KB binary, zero dependencies
3 months ago
- S3-compatible storage implemented in ~1.4K lines of Zig with zero dependencies.
- Supports basic S3 operations: PUT, GET, DELETE, LIST with full AWS SigV4 authentication.
- Comparison with RustFS and MinIO shows significant advantages in lines of code, binary size, and RAM usage.
- Features include multipart uploads, range requests, versioning, lifecycle policies, and pre-signed URLs.
- Designed for local development, CI artifact storage, self-hosted backups, and learning S3 internals.
- Performance benchmarks show zs3 outperforming RustFS by up to 537x in operations like LIST.
- Easy to set up with simple commands for building and running the server.
- Supports integration with any S3 SDK, demonstrated with boto3 Python example.
- Security features include input validation, request size limits, and no external network calls.
- TLS not included; recommends using a reverse proxy like nginx or caddy for HTTPS.
Show HN: Aroma: Every TCP Proxy Is Detectable with RTT Fingerprinting
4 months ago
- Aroma does not use IP intelligence but can be complemented by it.
- Current detection scores are set low to avoid false positives (0.3-0.1 is low but not flagged as proxy).
- Aroma is not production-ready; it's a proof of concept.
- Aroma detects TCP Proxies but not VPNs unless they use TCP Proxying.
- Aroma can detect Cloudflare WARP as it acts like a UDP => TCP proxy.
- Detection is based on TCP RTT measurements (minimum and smoothed RTT).
- Score calculation: tcpi_min_rtt / tcpi_rtt.
- Normal scores: 1-0.7; 0.7-0.3 for unstable connections; <0.1 flagged as proxy.
- Demo available at https://aroma.global.ssl.fastly.net/.
- Distance estimation based on RTT and light speed limitations.
- Proxies increase RTT measurements for protocols above their layer.
- Algorithm for score: (proxy RTT) / (non-proxy RTT).
LineageOS for QEMU Virtual Machines
3 months ago
- Download 'UTM-VM-lineage-*.zip' from releases for first-time installs.
- For updates, use 'lineage_virtio_arm64only-ota.zip' via ADB sideload in LineageOS Recovery.
- ADB access is available over Ethernet or VirtIO VSOCK; macOS/iOS devices forward ports 5555 and 5554 by default.
- LineageOS Recovery supports sideloading unsigned updates with a non-release recovery image.
- Google apps must be installed immediately after a factory reset or first boot via recovery.
- Magisk can be installed by patching 'boot.img' and flashing the patched image in fastbootd.
- The repository includes build scripts for compiling LineageOS on Ubuntu, requiring sudo, apt, and git.
Kiorg v1.4.1 – A modern battery included file manager with Vim inspired keybind
3 months ago
- Use filename as title for untitled epub/pdf
- Plugin parallel load
- Disable ctrl+shift+v shortcut on Windows
- Support popup preview from plugin
- PDF: full native rendering via pdfium
- EPUB: cover page and metadata display via rbook
- Syntax Highlighting: Full code preview with syntax highlighting
- Plugin System: A new language-agnostic plugin system
- HEIF/HEIC: add HEIF image preview support as a plugin
- Interactive preview: panning and zooming to image preview popup
- Fuzzy 'Teleport': built-in directory switcher
- Undo/Redo: file operations
- Open With (Fuzzy Search): select application to open a file
- More customization: define custom key bindings
- Drag & Drop: support for external files
- Volumes/Drives: added volume viewer on Mac and Drives viewer on Windows
- OTA Updates: built-in 'Over-The-Air' updates
- Added binary release for Linux ARM64 architecture

Hasty Briefsbeta

Show HN: Claude Cognitive – Working memory for Claude Code

Tixl: Open-source realtime motion graphics

I used Claude to revive an NPM package with 760K downloads/wk last updated 2019

L1TF Reloaded

Zpdf: PDF text extraction in Zig – 5x faster than MuPDF

Show HN: Replacing my OS process scheduler with an LLM

Toro: Deploy Applications as Unikernels

Show HN: Lazy-image – Node.js image library with static binaries (Rust/NAPI)

Copybara – tool for transforming and moving code between repositories

Quickemu: Quickly create and run optimised Windows, macOS and Linux VMs

Release fish 4.3.0 · fish-shell/fish-shell

Evolution: Training neural networks with genetic selection achieves 81% on MNIST

Show HN: ARES Dashboard – Open-Source AI Red-Teaming and Governance Platform

Worktrunk – CLI for Git worktree management

Rust based Viewer: Any document, any platform, in milliseconds

Show HN: Stop Claude Code from forgetting everything

Show HN: Zs3 – S3 server in ~1K lines of Zig, 250KB binary, zero dependencies

Show HN: Aroma: Every TCP Proxy Is Detectable with RTT Fingerprinting

LineageOS for QEMU Virtual Machines

Kiorg v1.4.1 – A modern battery included file manager with Vim inspired keybind

Show HN: Claude Cognitive – Working memory for Claude Code

Tixl: Open-source realtime motion graphics

I used Claude to revive an NPM package with 760K downloads/wk last updated 2019

L1TF Reloaded

Zpdf: PDF text extraction in Zig – 5x faster than MuPDF

Show HN: Replacing my OS process scheduler with an LLM

Toro: Deploy Applications as Unikernels

Show HN: Lazy-image – Node.js image library with static binaries (Rust/NAPI)

Copybara – tool for transforming and moving code between repositories

Quickemu: Quickly create and run optimised Windows, macOS and Linux VMs

Release fish 4.3.0 · fish-shell/fish-shell

Evolution: Training neural networks with genetic selection achieves 81% on MNIST

Show HN: ARES Dashboard – Open-Source AI Red-Teaming and Governance Platform

Worktrunk – CLI for Git worktree management

Rust based Viewer: Any document, any platform, in milliseconds

Show HN: Stop Claude Code from forgetting everything

Show HN: Zs3 – S3 server in ~1K lines of Zig, 250KB binary, zero dependencies

Show HN: Aroma: Every TCP Proxy Is Detectable with RTT Fingerprinting

LineageOS for QEMU Virtual Machines

Kiorg v1.4.1 – A modern battery included file manager with Vim inspired keybind