Flipflop is a Rust-based tool that creates persistent, trusted tunnels between two or more devices to make ongoing file and data sharing simple across Bluetooth, local networks, or the wider internet. It leverages Iroh for its networking layer and is designed for everyday "meatspace" use - sharing files, links, or plain text among your devices or family members both nearby and remote. Prebuilt binaries and an Android APK are available on the releases page; desktop builds target Linux, macOS and Windows (with an installer option), while iOS remains unavailable. Build instructions include cargo run --release for desktop and a just-based Android install flow. The project is GPL-3.0 licensed.
The codebase shows sustained development (over a thousand commits) and includes the usual Rust workspace artifacts (Cargo.toml, Cargo.lock, rust-toolchain), docs, tests, and platform-specific packaging metadata. Practical notes in the README call out platform quirks (Windows SmartScreen warnings) and distribution choices. The core pitch is not one-off transfers but establishing a persistent, authenticated tunnel so devices can exchange data anytime thereafter; the concrete takeaways for a reader are the cross-platform support, Rust/Iroh tech stack, installation paths, and licensing and maturity signals for evaluating whether to try it.
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