Open-source alternatives to Libaco

tbox is a multi-platform C standard library and toolkit designed for portable software development. It provides a core foundation for low-level system programming through a collection of system primitives, data structures, and memory management tools. The project includes a coroutine framework for cooperative multitasking and asynchronous logic, a data structure library featuring generic containers with a consistent iterator interface, and a memory management toolkit for pool allocation and debugging of heap overflows and leaks. It also provides a network and serialization toolset for handlin

cppcoro is a C++ coroutine library and concurrency toolkit providing primitives for asynchronous tasks, lazy generators, and non-blocking execution. It functions as an asynchronous I/O framework for managing network sockets and file operations through an event loop. The library features a work-stealing thread pool for distributing tasks across multiple cores and a set of async generators for producing lazy sequences of values both synchronously and asynchronously. It includes a concurrency toolkit with async mutexes, latches, and shared tasks to coordinate multi-threaded execution. Its capab

ReactPHP is an asynchronous runtime and event-driven I/O framework for PHP. It provides an environment for executing concurrent tasks through a central event loop implementation and reactor pattern, allowing applications to handle multiple operations without pausing the main execution thread. The project includes a specialized asynchronous socket library for TCP, UDP, and TLS communication, alongside a non-blocking HTTP server and client for streaming web requests and responses. Its capability surface covers asynchronous control flow via promises and fibers, non-blocking network connectivity

coobjc is an Objective-C coroutine library that provides await methods and generators to simplify asynchronous programming in Objective-C and Swift. It enables the implementation of non-blocking workflows to eliminate nested callbacks and thread blocking. The toolkit includes a non-blocking Foundation wrapper to convert synchronous Foundation and UIKit APIs into suspendable operations. It provides a lazy sequence generator for producing values on demand via yield, as well as a channel-based communication tool for exchanging data between concurrent tasks using buffered and unbuffered channels.

This project is an educational operating system kernel designed to demonstrate the fundamental architectural principles of memory paging and process management. It is implemented as a minimal kernel that serves as a practical reference for building a functioning system from the ground up. The implementation features a preemptive multitasking kernel that switches execution contexts between threads to share a single CPU. It includes an x86 virtual memory manager that uses paging to map virtual addresses to physical memory and isolate processes. The system covers low-level hardware interfacing

This project is a collection of practical scripts and reference guides that demonstrate advanced Python language features and idioms. It provides code implementations for mastering concepts such as concurrency, metaprogramming, and data structure design. The repository includes examples of the Python object model, covering custom attribute access, descriptor protocols, and special method overrides. It also features implementations of design patterns that utilize first-class functions and decorators to reduce object-oriented boilerplate. The codebase covers a broad range of capabilities, incl

EasySwoole is a high-performance asynchronous PHP framework designed for building event-driven networks and persistent memory applications. It functions as a toolkit for developing distributed microservices and asynchronous servers capable of handling concurrent HTTP, TCP, UDP, and WebSocket connections. The framework distinguishes itself through a persistent memory process execution mode that eliminates the overhead of repetitive file loading and invocation during request handling. It provides built-in support for distributed systems via remote procedure call implementations and service disc

Gopher-lua is a complete implementation of the Lua language and its standard libraries written natively in Go. It serves as an embedded scripting engine and virtual machine that allows Go applications to execute Lua scripts and exchange data between the host and the script environment. The project provides a bytecode compiler to transform source code into a binary format for faster execution. It enables deep integration between the two languages by allowing the registration of native Go functions to be called from scripts, and the invocation of script functions directly from Go. The engine c

LuaJIT is a high-performance Lua language implementation and just-in-time compiler. It functions as an embedded scripting engine and dynamic binary translator that converts portable bytecode into native machine code during execution. The project focuses on high-performance scripting by translating bytecode into architecture-specific instructions to achieve execution speeds close to compiled C code. It utilizes a lightweight runtime environment designed for minimal memory overhead. The system supports binary data processing via bitwise operations and enables asynchronous task management throu

nix is a Unix system API library and Rust system programming interface that provides type-safe bindings for invoking low-level system calls. It serves as a low-level operating system wrapper and POSIX compatibility layer, allowing for kernel interactions and administrative tasks through safe wrappers around platform-specific APIs. The project provides a kernel device interface for controlling hardware devices, managing kernel modules, and configuring terminal interfaces. It differentiates itself by offering type-safe wrappers for memory mapping and zero-copy input-output operations to reduce

This project is a comprehensive technical interview preparation guide and computer science knowledge base. It serves as a structured study resource designed to help software engineers review core engineering concepts and prepare for professional coding assessments. The repository focuses on a wide array of theoretical and practical domains, including detailed references for mobile application architecture and operating system fundamentals. It provides curated materials on software architecture patterns and network protocol analysis to support professional development. The content covers foun

Contiki is an operating system designed for resource-constrained embedded devices and the Internet of Things. It provides a lightweight, event-driven kernel that enables multitasking and low-power wireless network connectivity on hardware with extremely limited memory and processing power. The system distinguishes itself through a stackless threading model that allows for a blocking-style programming interface while maintaining a minimal memory footprint. It supports dynamic module and firmware management, enabling the loading and linking of relocatable binary code at runtime to update applic

c3c is the compiler for the C3 programming language, transforming source code into executable binaries, static libraries, or dynamic libraries using an LLVM backend. It implements a system based on result-based error handling, scoped memory pooling, and a semantic macro system. The compiler provides first-class support for hardware-backed SIMD vectors that map directly to processor instructions and enables runtime polymorphism through interface-based dynamic dispatch. The project covers a broad set of low-level capabilities, including manual and pooled memory management, inline assembly inte

HyperDbg is a hardware-assisted kernel-mode debugging platform that leverages virtualization to monitor and control system execution. By utilizing hypervisor-level primitives, it enables deep system analysis and instrumentation without relying on standard operating system debugging interfaces. The framework provides a comprehensive environment for inspecting both kernel and user-mode processes, allowing for granular control over execution flow and system state. The project distinguishes itself through a transparent debugging layer designed to remain invisible to the target environment. It emp

This project is a bare-metal operating system developed for ARM64 architecture. It serves as a low-level implementation of kernel engineering, focusing on the fundamental construction of an OS from the hardware level up. The system is distinguished by its comprehensive approach to ARM64 processor control, featuring a red-black tree task scheduler and a hierarchical page table system for virtual memory management. It implements a sophisticated privilege model that handles transitions between kernel and user modes, ensuring process isolation through address space splitting and exception level m

Small & portable byte-aligned LZ77 compression

Light and fast XML parsing library for C/C++

Small strings compression library

sds is a C dynamic string library that provides a memory management wrapper for heap-allocated strings. It implements binary-safe storage by tracking string lengths explicitly, allowing the library to handle null characters within data. The library distinguishes itself through a memory architecture that uses interchangeable function pointers for allocation and freeing, enabling the integration of custom memory managers. It utilizes header-stored length tracking to provide constant-time length retrieval and maintains null-terminated buffer padding to ensure compatibility with standard C string

A C library for statistical and scientific computing

Transform ML models into a native code (Java, C, Python, Go, JavaScript, Visual Basic, C#, R, PowerShell, PHP, Dart, Haskell, Ruby, F#, Rust) with zero dependencies

Simple .INI file parser in C, good for embedded systems

C List - universal list solution for C and C++, easy and fast, all data types supported

Library that solves the exact cover problem using Dancing Links, also known as DLX.

Libelf is a simple library to read ELF files.