OpenLogi

⚡️A native, local-first alternative to Logitech Options+, written in Rust 🦀 — remap buttons, DPI, and SmartShift over HID++. No account, no telemetry.

472 articles 12.8k View on GitHub ↗
472 articles
How the openlogi-permissions Crate Checks macOS TCC and Linux Device Permissions

Discover how the openlogi-permissions crate unifies macOS TCC and Linux device permission checks using read-only APIs and /dev probing for seamless application integration.

how-to-guide
Sep 13, 2026
How to Debug HID++ Communication Issues with Logitech Devices Using OpenLogi

Debug HID++ communication with Logitech devices using OpenLogi. Enable structured tracing and inspect raw HID reports to diagnose protocol failures and time-outs.

how-to-guide
Sep 13, 2026
Scroll Inversion Mechanism for HID++ Devices in OpenLogi: A Deep Dive into HiResWheel

Learn how OpenLogi enables scroll inversion for HID++ devices by leveraging the HiResWheel feature. Discover how the `has_invert` bit and native HID++ registers facilitate this functionality.

deep-dive
Sep 13, 2026
How OpenLogi Implements RGB Lighting Control for Logitech Keyboards

Learn how OpenLogi enables RGB lighting control for Logitech keyboards using the HID++ 2.0 protocol. Discover an open-source alternative to Logitech Options+.

internals
Sep 13, 2026
What Is the Role of openlogi-fixture in Testing Device Behavior?

Learn how openlogi-fixture enables hardware-independent HID++ device testing with host-free schemas, synthetic identities, and replay cassettes. Test device behavior deterministically.

testing
Sep 13, 2026
How OpenLogi Implements Foreground App Detection for Per-Application Profile Switching

Discover how OpenLogi uses native OS APIs like NSWorkspace and WinEventHook for foreground app detection, enabling seamless per-application profile switching. Learn the technical details.

internals
Sep 13, 2026
How to Implement Long-Press and Short-Press Action Pairs in OpenLogi

Implement distinct long-press and short-press actions in OpenLogi using HID++ control IDs FB and CF. Configure button bindings via TOML or Rust API for custom device behavior.

how-to-guide
Sep 13, 2026
How the openlogi-camera crate Interacts with UVC Webcam Hardware

Discover how the openlogi-camera crate interacts with UVC webcam hardware. It scans for Logitech devices and uses platform-specific backends for OS API translation.

internals
Sep 13, 2026
Tarpc IPC Wire Format Version Compatibility Contract in OpenLogi

Understand OpenLogi's tarpc IPC wire format version compatibility contract for binary-stable GUI and agent communication. Discover its append-only RPC and enum rules.

internals
Sep 13, 2026
How OpenLogi Handles DPI Cycling and Preset Management: A Technical Deep Dive

Discover how OpenLogi handles DPI cycling and preset management via its three-layer architecture. Learn about HID++ discovery, UI-state persistence, and agent core actions for seamless control.

deep-dive
Sep 13, 2026
Difference Between openlogi-hook and openlogi-inject Crates in OpenLogi

Discover the difference between openlogi-hook and openlogi-inject crates. OpenLogi uses them for bidirectional mouse and keyboard control with clean separation.

internals
Sep 13, 2026
How to Add Support for a New Logitech Device in OpenLogi's Registry

Learn how to add support for a new Logitech device in OpenLogi by updating its device registry with USB IDs and receiver protocols for seamless integration.

how-to-guide
Sep 13, 2026
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