LinuxRunner

ARM64 Linux userspace, terminals and desktop applications on iOS and iPadOS.

LinuxRunner uses a custom ARM64 interpreter and Linux compatibility layer to load Linux programs, implement their system calls and connect them to storage, networking and a graphical desktop on supported devices.

No jailbreak. No virtual machine. No JIT required by the release build.

Download the latest release · Set up Linux · Troubleshooting

KDE Plasma — an experimental Debian desktop option.

LinuxRunner	Settings
Firefox	Blender

LinuxRunner on iPhone: KDE Plasma, Firefox, Blender and Arch Linux ARM. The Arch capture below shows Telegram Desktop. Setup and iPad screenshots will be added when supplied.

Telegram Desktop — tested on Arch Linux ARM: login, sending messages and calls. The supplied iPhone capture shows its welcome screen.

• Three Linux distributions: Debian GNU/Linux ARM64, Arch Linux ARM and Alpine Linux ARM64, each with its own packages and files.
• A Linux terminal: shells, standard user accounts, package managers and available ARM64 command-line tools.
• Linux desktops and applications: an X11 desktop with windows, a panel and file management; experimental KDE Plasma on Debian.
• Touch, keyboard and pointer input: on-screen controls, hardware keyboard forwarding and supported mouse/trackpad events.
• Files and networking: import/export, optional shared folders and Linux sockets over the device's network, subject to iOS restrictions.
• New in 1.0.1: iPad desktop adaptations, unified distribution setup, Arch package recovery and desktop/session improvements. Changelog

Deployment targets describe the build configuration, not a guarantee for every device or OS version. Available memory and storage affect practical workloads. An older report of an iPhone 11/iOS 17 launch black screen remains unresolved.

The larger display gives Linux windows more room. The viewer sizes a new Fit Screen session to the current window and provides Fit to Screen, Actual Size, touch gestures, hardware keyboard forwarding and pointer handling. Desktop actions also have Control–Option–Command shortcuts. Rotation and window size are handled by the interface; changing the Linux display resolution takes effect at the next desktop start. iPad support has been physically tested by the maintainer. Controls and shortcuts

Arch uses selected LXQt components, not a claim of a complete LXQt session. Current Arch Plasma and Wayland sessions are unavailable. Multiple environments can coexist; one runtime is active per app launch.

1. Download the LinuxRunner IPA from GitHub Releases.
2. Install it with your preferred compatible IPA sideloading tool, such as Sideloadly or AltStore Classic.
3. Open LinuxRunner on your iPhone or iPad.
4. Follow Set Up Linux… to install a distribution inside the app.

Signing and compatibility depend on the selected method. The v1.0.1 packaging script produces an ad-hoc-signed IPA without an Apple provisioning profile; a compatible tool must provide the signing/provisioning needed for installation. Keep the same app identity and storage configuration when updating. Download verification and signing

Installing the IPA installs the application. You then install or configure a Linux distribution inside it.

Open Distributions → Set Up Linux… → Continue. Choose Debian, Arch or Alpine, then continue to that distribution's install button. Follow the requested app relaunch, create or select a Linux account and install desktop components if wanted. Use Home → Terminal for a shell, or Open Desktop / Resume Desktop for a graphical session.

The step-by-step guide covers existing environments, account options, progress, terminal commands, package installation and desktop controls. It uses the labels in the current app.

LinuxRunner Desktop is the default lightweight X11 session. On Debian, KDE Plasma can be installed later through Settings → Desktop Environment. On Arch, use the Openbox/LXQt-component desktop offered by setup.

Install software through Home → App Manager or the distribution's package manager. Start discovered graphical applications through Home → Applications. Use a regular Linux user for everyday work; sudo is available to accounts created with administrator privileges.

Telegram Desktop has been tested on Arch Linux ARM with build 897, including login, sending messages and calls. Earlier supplied captures also show Dolphin, Firefox and Blender. Application compatibility

The executable loader maps ARM64 Linux ELF programs and their libraries. The interpreter executes supported guest instructions through precompiled host routines. A userspace compatibility layer implements Linux system calls, processes, threads, signals, memory mappings and filesystem metadata. Linux sockets connect through the platform network APIs.

Graphical applications use X11: Xvfb and x11vnc feed the native desktop viewer, which forwards display updates and input. Mesa supplies software OpenGL; an experimental Metal bridge accelerates selected rendering paths. This is userspace compatibility with instruction interpretation, rather than full-system emulation or hardware virtualization. LinuxRunner does not boot a Linux kernel or execute arbitrary guest code natively. Architecture

• ARM64 Linux programs only; x86/x86-64 applications and Linux kernel boot are unsupported.
• System-call and graphics coverage is incomplete. Package availability does not establish application compatibility.
• Arch desktop, Debian KDE Plasma and Metal acceleration are experimental; demanding programs may be slow or exceed device memory limits.
• No Wayland session, systemd as init, kernel modules or conventional Linux containers.
• iOS/iPadOS can suspend or terminate the app. Done retains a running desktop within the app; termination does not preserve running Linux processes.
• Linux accounts and permissions do not isolate hostile software from the application. The platform sandbox is the security boundary.

See compatibility, known limitations and the security policy.

Start with Troubleshooting. The App Manager's Repair Center provides diagnosis and package repair; Settings → Advanced → Export Open Desktop Report collects startup/session information. Review reports for personal data before sharing.

Report a reproducible issue with your device, OS, app version/build, distribution and steps. A launch report is useful even when an application is not fully compatible.

Most users install the IPA. Developers can build the LinuxRunner scheme in iSH.xcodeproj; see the build guide for tool requirements, pinned dependencies and verification. Contributing covers focused changes and useful compatibility reports.

Maintained by Leminos (mxhm11cr). LinuxRunner derives from iSH, by Theodore Dubois and contributors, through ios-linuxkit, by Rui Carmo and contributors.

The combined application is GPL-3.0-covered. Preserve upstream contribution-specific terms, copyright attribution and the App Store terms in LICENSE.md and LICENSE.IOS. Third-party software retains its own licenses; see THIRD_PARTY_NOTICES.md. Linux distributions, desktops and applications are the work of their respective projects.