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CoMaps: New OSM based navigation app
10 months ago
- CoMaps is now available on Google Play Store, Apple App Store, and F-Droid.
- Offers offline search and route planning without needing an internet connection.
- Designed to save battery with an efficient, low-power usage design.
- Privacy-focused: no tracking, no data collection, and no identification of users.
- Completely free with no ads for a smooth user experience.
- Community-driven and open-source, with transparent decision-making processes.
- Empowers users to contribute to the app's development and evolution.
- Not-for-profit, focusing on community value rather than generating profit.
Postcard is now open source
10 months ago
- Launched Postcard in 2022 as a personal website and newsletter to stay in touch with friends after deleting social media.
- Postcard powers philipithomas.com, featuring monthly 'What I'm up to' updates since launch.
- Thousands signed up initially, and many still use Postcard today, though revenue is modest (dozens of dollars per month).
- Postcard is maintained by the author, running on a Mac Mini at home.
- Decision to open-source Postcard due to occasional updates, developer interest, and minimal revenue expectations.
- Postcard is a simple Ruby on Rails app with few dependencies, making it easy to customize and run.
- Added 'Solo' mode for single-site hosting, simplifying deployment for open-source users; hosted service uses 'Multiuser' mode.
- Includes Dockerfile and render.yaml for easy deployment to Render.
- Encourages users to check out, fork, and build with the open-sourced Postcard.
Gecode is an open source C++ toolkit for developing constraint-based systems
10 months ago
- Gecode is an open-source C++ toolkit for constraint-based systems and applications.
- It offers state-of-the-art performance, modularity, and extensibility.
- Key features include openness for programming, comprehensive constraint support, and high efficiency.
- Gecode supports constraints over integers, Booleans, sets, and floats with over 70 predefined constraints.
- It includes advanced branching heuristics, multiple search engines, and automatic symmetry breaking.
- Gecode has won multiple gold medals in the MiniZinc Challenges from 2008 to 2012.
- It comes with extensive documentation, including a 500+ page tutorial and reference documentation.
- Distributed under the MIT license, Gecode is free and open-source.
- Portable across different platforms and supports parallel search for multi-core hardware.
opencode: AI coding agent, built for the terminal
10 months ago
- AI coding agent designed for terminal use.
- Installation methods include curl, npm, brew, and paru.
- Requires Bun and Golang 1.24.x to run locally.
- Open-source and provider-agnostic, supporting multiple AI models.
- Focus on Terminal User Interface (TUI) and client/server architecture.
- Allows remote operation from clients like mobile apps.
- Encourages discussion via GitHub issues for new features.
Show HN: Piano Trainer – Learn piano scales, chords and more using MIDI
10 months ago
- Learn piano at your own pace with various practice modes.
- Features include MIDI compatibility, home row keyboard input, and cross-platform support.
- Interactive practice options: scales, chords, fifths, and quizzes.
- Additional modes: Hard mode, Shuffle mode, and more scales.
- Customizable settings like keyboard sound and quiz questions.
- Free download available on itch.io or via direct build.
- Setup requires Rust and Tauri CLI; installation steps provided.
- Open for contributions; PRs should point to the dev branch.
- Code formatting managed automatically with Git Hooks.
- Acknowledgments to key contributors and communities.
Best Way to Advertise a Programming Language
10 months ago
- The best way to advertise a programming language is by writing useful programs that appeal to a wide audience.
- Common Lisp and Haskell, despite their merits, lack a significant number of widely-used programs, which affects their popularity.
- GitHub stars and project utility are key indicators of a language's practical adoption.
- Examples of notable Common Lisp projects include Nyxt (web browser) and pgloader (PostgreSQL migration tool).
- Haskell has projects like pandoc (markup converter) and ShellCheck (shell script analyzer), but many are niche tools or compilers.
- Python and Zig have more widely-used programs, demonstrating practical adoption beyond theoretical benefits.
- Shipping real software demonstrates a language's viability and can serve as effective evangelism.
- Language popularity is influenced by marketing, education, and institutional support, not just technical superiority.
Grinding down open source maintainers with AI
10 months ago
- Author receives an AI-generated bug report filled with excessive emojis and emotional manipulation.
- The bug report is content-free and later identified as part of a spam wave targeting Codeberg.
- Another AI-generated bug report follows a similar pattern: frustration, blame, criticism, and demands.
- Codeberg is actively moderating these spam reports to protect maintainers.
- Possible motives include disrupting Codeberg, draining developer attention, or unethical research.
- AI-generated spam reports are unwelcome and harmful to open-source communities.
Show HN: Ossia score – a sequencer for audio-visual artists
10 months ago
- ossia score is a sequencer for audio-visual artists, designed for interactive shows.
- Supports OSC, MIDI, DMX, sound, video, and more, integrating multiple software and hardware.
- Features live-coding with JavaScript, ISF Shaders, Faust, PureData, or C++.
- Compatible with IoT protocols like CoAP or MQTT, and devices like joysticks, Wiimotes, Leapmotions, and BLE sensors.
- Loads various audio/video formats and processes visuals via Spout, Syphon, NDI, Shmdata, or Sh4lt.
- Free, open-source, and runs on desktop, mobile, web, and embedded systems (e.g., Raspberry Pi Zero 2).
- Download available for Windows, Linux (AppImage), and macOS.
- Encourages contributions with labeled code issues (TODO, FIXME, OPTIMIZEME, etc.).
- Supports plugin development for custom features.
- Community-driven with forums, Discord, and Matrix for support.
Applite – A macOS native GUI for homebrew
10 months ago
- Download, update, and uninstall apps with a single click.
- Clean and simple UI designed for non-technical users.
- Free and open-source with no costs or tracking.
- Uses Homebrew package manager for macOS applications.
- Apps available are those in the Homebrew Catalog.
- Security relies on macOS protections like Gatekeeper and XProtect.
- Apps may not be sandboxed, so caution is advised.
- Applite tracks no user information.
- Compatible with existing Homebrew installations.
- Can manage apps installed via Homebrew but not manually installed ones.
- Option to donate to support the project.
I used to prefer permissive licenses and now favor copyleft
10 months ago
- Permissive licenses (e.g., CC0, MIT) allow unrestricted use and redistribution with minimal attribution requirements.
- Copyleft licenses (e.g., CC-BY-SA, GPL) require derivative works to be shared under the same license, promoting open sharing.
- Historically, the author preferred permissive licenses to maximize adoption and due to a philosophical dislike of copyright.
- Copyleft is seen as a way to 'use copyright against itself,' ensuring freedom and openness in derivative works.
- Recent shifts toward copyleft are driven by open source becoming mainstream, competitive pressures in crypto, and economic arguments favoring diffusion of progress.
- Economic arguments highlight that superlinear returns to scale necessitate openness to prevent monopolistic control.
- Modern trends like rapid tech progress and political instability increase the need for copyleft to maintain balance.
- Copyleft is viewed as a neutral way to incentivize diffusion without favoring specific actors or requiring central planning.
- While permissive licenses still have their place, the benefits of copyleft are more significant today than in the past.
Epanet-JS
10 months ago
- epanet-js is a web application combining modern web maps with the EPANET hydraulic simulation algorithm for water utility planning.
- Developed by Iterating experts Luke Butler and Sam Payá, it targets professionals in hydraulic simulation.
- The project uses code from Placemark, an open-source tool previously developed by the author, under a permissive MIT license.
- Iterating has contributed back to the Placemark codebase, showcasing a positive open-source collaboration.
- epanet-js is open-sourced under the Functional Source License, with contributions becoming open source after two years.
- The tool runs in browsers using WASM, offering a modern alternative to expensive, Windows-only EPANET software costing $16,000/year.
- The author expresses admiration for the project, highlighting its potential to disrupt traditional hydraulic simulation tools.
BharatMLStack – Realtime Inference, MLOps
10 months ago
- BharatMLStack is a production-ready machine learning infrastructure platform aimed at democratizing ML capabilities.
- Mission: Provide scalable, accessible ML solutions for organizations to build, deploy, and manage ML at scale.
- Key Features: Democratize ML, Scale Without Limits, India-First Approach, Real-Time Intelligence, Developer-Friendly.
- Performance Metrics: 1M+ feature vector retrievals/sec, sub-10ms latency, 99.99% uptime, petabyte-scale storage.
- Components: Horizon (Control Plane), Trufflebox UI (ML Management Console), Online Feature Store, Go & Python SDKs.
- Online Feature Store: Sub-10ms feature retrieval, streaming ingestion, backward-compatible versioning, multi-source integration.
- Deployment: Cloud-agnostic, Kubernetes-native, built-in observability, Docker setup available.
- Quick Start: Includes Docker setup, sample data, health checks, and step-by-step tutorials.
- Community: Open-source contributions welcome, with Discord, GitHub Issues, and email support available.
- License: BharatMLStack Business Source License 1.1.
Lichess mobile app
10 months ago
- Lichess mobile app is built for the love of chess, not money.
- All features are free with no ads or tracking.
- The app is entirely open source.
- Supports phone and tablet play.
- Includes various game modes like bullet, blitz, classical, and variants.
- Offers correspondence chess, online and offline play, tournaments, and broadcasts.
- Features puzzles, game analysis, and the ability to follow and challenge friends.
- Available in over 100 languages.
- All releases are available on GitHub.
Radium – The Music Editor
10 months ago
- Radium is a music editor with a unique interface, combining elements of piano roll and tracker interfaces for efficient and musical editing.
- It functions as a Digital Audio Workstation (DAW), supporting audio recording, editing, and mixing.
- Radium's development began in 1999, with the first public release in 2000, and it is now available on Linux, Windows, and Mac.
- Key features include multitracking (audio and MIDI), automation, granular synthesis, smooth scrolling, and support for various plugins (AU, LADSPA, LV2, VST, VST3).
- Additional features include microtonality, scripting in Python or Scheme, multicore support, and unlimited undo/redo.
- Radium is open-source with a straightforward build system, and it includes a Faust audio DSP development environment.
- Quick start guide: Load a demo song, play with spacebar, add notes via keyboard, and consult the manual.
- Contact: [email protected], Follow @MusicRadium, Last updated: 2024-09-14.
- Recent updates include multiple version releases in 2024, 2023, and 2022.
- Support development via donations or subscriptions for prioritized bug reports and feature requests.
RapidRAW: A non-destructive and GPU-accelerated RAW image editor
10 months ago
- RapidRAW is a lightweight, GPU-accelerated RAW image editor under 30MB for Windows, macOS, and Linux.
- Developed by an 18-year-old as a personal challenge using React and Rust with Google Gemini's support.
- Features include AI-powered masking, generative AI integration with ComfyUI, and non-destructive editing.
- Recent updates include improved shaders, AI roadmap updates, and support for more RAW formats.
- The project is open-source under AGPL-3.0, ensuring it remains free and community-driven.
Reachy Mini – The Open-Source Robot for Today's and Tomorrow's AI Builders
10 months ago
- Reachy Mini is an open-source robot designed for human-robot interaction, creative coding, and AI experimentation.
- Priced from $299, it's fully programmable in Python (with future support for JavaScript and Scratch).
- Available in Lite and fully autonomous versions, with onboard computing, wireless connectivity, and a battery.
- Features include a camera, microphones, speakers, accelerometer, and expressive movements like head rotation and animated antennas.
- Designed for education, research, and prototyping, with plug-and-play behaviors and community-driven development.
- Integration with Hugging Face allows use of open-source models for speech, vision, and personality.
- Sold as a DIY kit, encouraging assembly with friends or family.
- Early development phase; available for pre-order with delivery from fall 2025 through 2026.
Show HN: I built a playground to showcase what Flux Kontext is good at
10 months ago
- Flux Kontext Dev is an AI-driven online tool for instant image editing.
- Users can upload images and describe changes to see transformations.
- Features include modifying image elements, photo restoration, and style transfer.
- Additional capabilities: text modification, logo enhancement, and crowd removal.
- E-commerce product display creation is supported with professional results.
- Technical features include open weights, superior performance, and hardware optimization.
- Compatible with ComfyUI, HuggingFace Diffusers, and TensorRT.
- 12B parameter model optimized for consumer hardware.
- Free for research and non-commercial use.
Show HN: Typeform was too expensive so I built my own forms
10 months ago
- Ikiform is an open-source alternative to Typeform and Google Forms.
- It allows users to create beautiful and affordable forms effortlessly.
- Features include AI Form Builder, Intuitive Form Builder, and AI-Powered Analytics.
- Core features include unlimited submissions, AI form generation, and exporting responses.
- Advanced analytics provide insights with AI-powered suggestions.
- Upcoming features include team collaboration, custom domains, and file uploads.
- Pricing is simple and transparent, starting with a free tier.
- Users can get priority support and build forms from mobile devices.
Mentra: Open-Source Smart Glasses
10 months ago
- Mentra Live Camera Glasses feature a camera, speakers, mic, and open-source SDK.
- Capabilities include video streaming, AI interaction, translation, calls, and app downloads.
- MentraOS allows app installation, management, and multi-device functionality.
- Apps available include X, Shazam, AI assistant, and translation via the Mentra Store.
- Supports live streaming on platforms like YouTube, Twitch, TikTok, and Instagram.
- Open-source SDK enables custom app development for smart glasses.
- Mentra aims to create the best human intelligence augmentation experience.
Linux Containers – Incus
10 months ago
- Incus is a next-generation system container, application container, and virtual machine manager.
- It provides a user experience similar to public clouds, allowing mix of containers and VMs with shared storage and network.
- Incus is image-based, supporting various Linux distributions, and scalable from laptops to server racks.
- Managed via command line, REST API, or third-party tools, with a single API for local and remote access.
- Originally a community-driven alternative to LXD, now maintained by former LXD creators.
- Supports system containers (simulating full OS), application containers (isolated apps), and VMs (different OS).
- Key features include security, scalability, event-based operations, remote usage, and project support.
- Offers backup, snapshots, instance migration, multiple storage backends, and advanced resource control.
- Works on recent Linux distributions; clients available for Windows and macOS.
- LTS releases (e.g., Incus 6.0 supported until 2029) and monthly feature releases.
- Commercial support available from Zabbly; written in Go under Apache 2 license, hosted on GitHub.
- Contributions require signed-off commits (DCO), no CLA needed.

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#open-source

CoMaps: New OSM based navigation app

Postcard is now open source

Gecode is an open source C++ toolkit for developing constraint-based systems

opencode: AI coding agent, built for the terminal

Show HN: Piano Trainer – Learn piano scales, chords and more using MIDI

Best Way to Advertise a Programming Language

Grinding down open source maintainers with AI

Show HN: Ossia score – a sequencer for audio-visual artists

Applite – A macOS native GUI for homebrew

I used to prefer permissive licenses and now favor copyleft

Epanet-JS

BharatMLStack – Realtime Inference, MLOps

Lichess mobile app

Radium – The Music Editor

RapidRAW: A non-destructive and GPU-accelerated RAW image editor

Reachy Mini – The Open-Source Robot for Today's and Tomorrow's AI Builders

Show HN: I built a playground to showcase what Flux Kontext is good at

Show HN: Typeform was too expensive so I built my own forms

Mentra: Open-Source Smart Glasses

Linux Containers – Incus