Open-source alternatives to Laptop

LiteX is an FPGA SoC development suite and SoC builder framework used to programmatically design system-on-chips. It provides a hardware description toolchain that uses a scriptable framework to define hardware layouts and automate the generation of hardware description language code. The project distinguishes itself by orchestrating multiple vendor and open-source toolchains to synthesize digital logic and generate deployable bitstreams. It supports multi-language logic integration, allowing disparate hardware description languages to be combined into a single project. The framework covers

This project is an open source hardware project providing the design specifications, blueprints, and parts lists required to build a high-performance CoreXY 3D printer. It serves as an engineering framework for a fused deposition modeling printer and a DIY CNC motion system. The project focuses on the construction of a mechanical framework for precise three-axis movement. It provides the necessary technical documentation for hardware component sourcing and the assembly of a custom motion system. The design covers the integration of a direct-drive extruder, a heated bed assembly, and thermal

darkriscv is a collection of tools and projects for RISC-V processor implementation, hardware debugging, and automated FPGA synthesis. It provides a hardware design that implements a RISC-V processor core and system components for deployment on programmable logic. The project includes a hardware debugger with a command-line interface for verifying processor state by manipulating registers and dumping memory on a hardware target. It also features a set of scripts and project files to automate the synthesis and programming of hardware designs within a Linux environment. The codebase covers har

This project provides educational resources and step-by-step guides for designing electronic schematics and preparing keyboard printed circuit boards for manufacturing. It serves as a manual for mechanical keyboard hardware, focusing on mapping electrical connections and routing traces for custom circuit boards. The documentation specifically guides users through the KiCad electronic design automation suite to translate initial schematics into final hardware layouts. It covers the complete workflow for custom keyboard design, from circuit engineering to the generation of professional fabricat

Audio Router is a virtual audio routing tool used to redirect audio streams from specific software applications to chosen playback devices and hardware outputs. It functions as an application audio manager that allows for the assignment and saving of audio device preferences for individual running processes. The software includes capabilities for duplicating audio streams, enabling a single audio signal to be sent to multiple output devices simultaneously for synchronized playback. It also provides real-time audio monitoring through peak meters to visualize signal strength and audio levels ac

EasyEffects is a real-time audio processor and system-wide effects manager designed for PipeWire audio streams. It functions as a comprehensive suite for applying filters, equalizers, and limiters to both input and output audio across the entire system. The project distinguishes itself through its use of deep learning for neural network noise suppression and voice isolation, as well as its ability to simulate physical acoustic environments using impulse-response convolution. It includes a sophisticated preset management system that allows users to associate specific audio configurations with

Android Media is a framework library providing the primary system components for audio and video playback, session management, and media routing on Android. It includes a multimedia API for processing raw media streams, managing MIDI devices, and rendering video frames. The project features a dedicated metadata manager for organizing descriptive labels, content channels, and DRM configurations, alongside a session controller that synchronizes playback state with external controllers and manages media shortcuts for wearable devices. The library covers a broad range of capabilities including a

Oboe is a native C++ library designed for building high-performance, low-latency audio applications on Android. It serves as a unified wrapper and native API for managing audio streams, sample rates, and hardware routing across different Android operating system versions. The library provides a consistent interface by automatically selecting the most efficient audio backend at runtime, switching between AAudio and OpenSL ES to ensure the lowest possible latency. It enables exclusive-mode hardware access to bypass the system mixer and utilizes a high-priority asynchronous pull model for audio

This project provides hardware specifications and configuration sets for building programmable split mechanical keyboards and macro pads. It focuses on column-staggered designs that utilize the QMK firmware framework to manage input behaviors and keymaps. The hardware design emphasizes modularity and customization, featuring hotswap sockets for switch replacement without soldering, rotary encoders for specialized control, and low-profile switch options. Visual feedback is integrated through per-key RGB lighting and I2C-based OLED status displays. The system covers a broad range of capabiliti

TrackWeight is a digital weighing instrument and pressure-to-weight converter designed to measure the mass of objects. It functions as a pressure sensor weight scale that translates data from a touch surface into weight measurements in grams. The system integrates pressure sensor data to enable digital weight measurement and embedded weight tracking. It converts raw pressure readings into standardized weight units to quantify the mass of objects or fingers in contact with a sensory surface. The implementation includes analog-to-digital signal conversion, linear regression calibration for acc

librespot is an open-source audio streaming client and library used to implement custom music players that authenticate and stream audio from the Spotify service. It functions as a framework for fetching, decoding, and routing remote audio streams to various system backends and audio sinks. The project specifically implements a Spotify Connect receiver, allowing it to act as a remote-controllable playback endpoint that appears as a selectable device within other Spotify applications. This enables the creation of virtual playback devices, headless music playback on remote servers, and the inte

Shairport-sync is an AirPlay audio streaming receiver that enables the reception of wireless audio streams from Apple devices and routes them to system sound servers or hardware devices. Its primary purpose is to facilitate multi-room audio synchronization, aligning output across multiple playback devices to ensure content plays in unison. The project distinguishes itself through advanced digital signal processing, including impulse-response convolution filtering to correct frequency response. It provides precise audio timing adjustments to compensate for amplifier latency and offers extended

This project is a multi-room music server and library aggregator that centralizes local audio files and various streaming services into a single unified database. It functions as a media controller for DLNA and UPnP devices, enabling the management of music, podcasts, and audiobooks across networked speakers. The system is distinguished by its ability to synchronize audio playback across multiple speakers and brands simultaneously. It features a digital signal processor for loudness normalization and frequency correction, alongside an acoustic fingerprinting engine used for metadata enrichmen

ElectronBot is a robotic system comprising custom PCB designs, an embedded circular display driver, an I2C servo controller, and a communication bridge. It integrates hardware schematics and layouts for control boards and sensor arrays with firmware designed to render images and animations on integrated circular screens. The system features a control bridge that links the physical robot hardware to the Unity game engine for real-time visualization and high-level control. Data exchange between the host computer and the embedded hardware is handled via a custom USB CDC serial communication prot

This is the official documentation repository for Raspberry Pi hardware and software. It covers the complete range of Raspberry Pi single-board computers, the RP-series microcontrollers, and the Raspberry Pi operating system. The documentation provides reference material for setting up devices, configuring hardware, and using the system for tasks including AI inference, camera and video capture, embedded development, and remote access. The documentation covers the full boot chain from the GPU firmware and EEPROM bootloader through to kernel loading, with detailed guidance on boot configuratio

SO-ARM100 is an open-source robot arm hardware project providing 3D-printable designs and assembly guides for building affordable robotic arms. It includes calibration software to synchronize motor communication parameters and arm positions via USB, alongside hardware designs for tactile sensing robotic grippers. The project distinguishes itself through the integration of touch-sensing and flexible filaments for adaptive grasping. It also provides a dedicated imitation learning dataset tool, featuring a web interface for labeling and visualizing robotics data to train machine learning models

This project is an ESP32 display driver library and touchscreen UI framework. It provides a collection of hardware configurations and software drivers designed to control ESP32-based touchscreen displays. The repository serves as an embedded hardware pinout map, providing a guide for mapping the physical pins of the display module. It specifically enables the use of these displays as controllable touch panels within home automation hardware interfaces. The project covers embedded graphics development, including the rendering of visual interfaces and the integration of ESP32 display modules f

This is an Android multimedia player designed to decode and play a wide variety of audio and video formats. It functions as a network media streamer and a multimedia library manager, indexing local files into a searchable database for organized access. The project includes a high-fidelity audio processor for routing signals through hardware interfaces like SPDIF and HDMI, and a Chromecast media controller for streaming content to external renderers and UPnP devices. It supports advanced visual rendering, including high dynamic range video with tonemapping, 360-degree video, and spatial audio.

MPD is a headless music server daemon that indexes audio libraries and streams music to local or remote outputs. It functions as a music library manager and network audio streamer, providing a remote audio control protocol that allows external clients to manage playback, playlists, and database queries. The system acts as a multiroom audio coordinator, synchronizing audio distribution across multiple networked clients and hardware devices. It supports a variety of remote management capabilities, including a dedicated control API and the ability to broadcast audio streams over network protocol

VDO.Ninja is a low-latency peer-to-peer media routing service and video streaming platform designed to integrate remote audio and video feeds into professional production workflows. It functions as a WebRTC broadcast integration tool and studio controller, allowing for the direct transmission of high-definition media between publishers and viewers with minimal delay. The platform distinguishes itself through extensive protocol bridging, converting between WebRTC, WHIP, WHEP, SRT, and RTMP to ensure compatibility across diverse network environments and professional studio software. It includes

Swiftfin is a native Jellyfin media client for iOS and tvOS. It is a SwiftUI mobile application designed for streaming and browsing movies, music, and shows from a Jellyfin server. The application utilizes native Apple frameworks for hardware-accelerated decoding and includes an AVKit media player. This integration enables system-level color management for HDR to SDR conversion and supports native Apple ecosystem features such as picture-in-picture and external display output. The client provides tools for browsing and managing home media libraries, routing audio wirelessly, and adjusting pl

Julius is a high-performance, open-source speech recognition engine designed for large vocabulary continuous speech recognition. It functions as a comprehensive framework utilizing Hidden Markov Model-based acoustic modeling and N-gram language models to convert live or recorded audio into text. The engine is built to support real-time streaming and provides a network-accessible service that allows external applications to manage recognition sessions and receive transcription results through programmatic commands. The engine distinguishes itself through its modular architecture and support fo

EZAudio is an audio library for Apple platforms that provides standardized interfaces for microphone capture, file playback, and hardware output. It functions as a low-latency audio processor and visualization framework designed to manipulate audio buffers and route signals with minimal delay. The project features a hardware-accelerated waveform renderer for drawing real-time audio amplitudes and rolling plots. It also includes a Fast Fourier Transform analyzer that converts time-domain audio samples into frequency-domain data for spectral analysis. The library covers a broad range of capabi

linux-wallpaperengine is a live wallpaper engine for Linux distributions. It functions as a controller for rendering animated backgrounds and interactive wallpapers on the desktop. The project integrates assets from the Wallpaper Engine ecosystem and provides a manager for multi-monitor setups. Users can assign unique animated backgrounds to individual screens or stretch a single image across multiple displays. The engine includes capabilities for managing wallpaper audio and modifying visual properties to match specific aesthetics. It also features a resource optimizer that pauses animation

This project is a cross-platform desktop client for streaming and controlling music from the Google Play Music service. It functions as a dedicated media player that provides a desktop interface for accessing music libraries and playback controls. The application features rich presence capabilities, sharing current track information with communication platforms via real-time updates. It also acts as a WebSocket music controller, exposing playback states and controls to other applications through JSON and WebSocket interfaces. The player includes system-level integration for hardware media ke

Rack is a virtual Eurorack modular synthesizer emulator and a modular synthesis SDK. It provides a digital environment for creating and routing electronic music signals using virtual modules, oscillators, and filters, simulating the behavior of analog hardware through voltage-based signal routing. The system functions as a MIDI and CV converter, translating signals between software and external hardware, and can operate as a VST or industry-standard instrument plugin within digital audio workstations. It also acts as a VST plugin host, embedding external virtual instruments and effects to exp

RPiPlay is an AirPlay mirroring server and media receiver designed to bridge Apple devices to Raspberry Pi hardware. It functions as a media gateway that receives encrypted video and audio streams from iOS and macOS devices to project them onto a connected display and sound system. The project focuses on low-latency video streaming by rendering frames immediately upon arrival to bypass scheduled timestamps. It utilizes bitstream manipulation and a specialized video pipeline to reduce transmission delay between the source device and the receiver. The system provides hardware-accelerated rende