Windows Subsystem for Linux (WSL)

Raven is a Linux runtime for running Windows applications without a virtual machine or Wine. It runs the Windows program code directly on the CPU inside a sandbox and answers its system calls by implementing Windows-kernel and service behavior, including processes and threads, files, the registry, windows, and input. Graphics are routed through Wayland and Vulkan, with DXVK and vkd3d-proton providing Direct3D support. Applications are installed with their normal Windows installers into separate prefixes, each with its own C: drive and registry. Raven supports both 32-bit and 64-bit programs, Windows Installer, NSIS and Inno Setup packages, selected .NET Framework versions, and Direct3D 8 through 12 through its graphics components. It is currently built from source for x86_64 Linux using CMake, C++20 and Python 3.11 or newer. Raven's Linux runtime is licensed under GPL-3.0-or-later, while its guest adapters and imported components retain their stated licenses.

Wine is a Windows compatibility layer used by Highball.

Shell Gym is an interactive Linux command-line trainer implemented as a background daemon with a built-in web UI. It presents short assignments, or “reps,” such as entering a directory, creating a file, killing a process, or freeing a port; the assignment completes automatically when the corresponding system state changes. Users type real commands in an ordinary terminal while the UI observes the host and provides guidance, without modifying the shell or using prompt hooks, wrappers, special functions, a check button, or copy-and-paste. Its outside-the-shell observation uses procfs to discover interactive shells and inspect working directories, processes, files, and ports; the Linux kernel proc connector to observe exec() events; and direct state checks for files, processes, and listening ports. It runs on a Linux host as root, with an online playground also available, and the project advises using a disposable VM or other disposable Linux system because exercises perform real actions on the live host.

PowerShell is a cross-platform task automation and configuration management framework developed by Microsoft, providing a command-line shell, scripting language, and a set of cmdlets. It was originally Windows-only and was later open-sourced and re-released as PowerShell Core (now PowerShell 7) for Windows, macOS, and Linux. The project is maintained by Microsoft and hosted on GitHub.

Waku is a native desktop app for working with local coding agents. Built in Rust with GPUI, it keeps projects, sessions, transcripts, and application state on the user's machine, while detecting supported agent CLIs and using each provider's native structured protocol and session continuity. Its interface supports independent project sessions, model and reasoning settings, queued or directed follow-up messages, and Git-backed task rewind with conversation-aware checkpoints. The desktop app communicates with a standalone waku-daemon over an authenticated, versioned WebSocket protocol. The daemon manages task data in SQLite, attachments, provider-native session forks, workspace files, and Git operations; a browser client uses the same generated protocol. Waku is distributed for macOS, Linux, and Windows, with no Waku account or remote service required.