React Native, but Rust + Compose. Write your mobile app's logic and its UI in Rust, and render to real native widgets.
Status: early & experimental (v0.1). Android only. APIs and project layout will change.
Mobiler builds on Crux: a Rust core owns all
state, events, and business logic, with no business logic in the native layer. On top
of that headless-core pattern, a Mobiler core's view function also returns a Widget
tree, and a thin, app-agnostic Jetpack Compose shell renders that tree into real
native Material 3 widgets. Taps and input flow back into the Rust core across the FFI
(uniffi + bincode). You write the app once, in Rust; the native shell stays generic.
The mobiler CLI scaffolds a project and drives the whole loop — Rust core → Kotlin
type generation → Gradle APK → install and launch on a device — plus a file watcher.
The widget vocabulary and runtime live in the mobiler-ui / mobiler-core crates,
so the native shell is generic: built once from a fixed ABI and reused for every
app, never regenerated per app.
| Path | What |
|---|---|
mobiler/ |
The mobiler CLI (crate + embedded templates/ scaffold) |
mobiler-ui/ |
The fixed UI wire ABI — app-agnostic Widget tree + Action protocol |
mobiler-core/ |
The runtime — the MobilerApp trait, Crux shell adapter, typed widget builders, capabilities |
demos/todo/ |
Todo / projects showcase — see demo README |
demos/coffee/ |
Coffee-shop storefront (images, grid, chips) — see demo README |
Monorepo for now. Each demo under
demos/is a self-contained project (its own workspace, not a member of the CLI's), just likemobiler newproduces — so any of them can later be extracted into its own repository.
| Todo | Coffee |
|---|---|
 |
 |
| Lists, cards, checkboxes, per-project colors, dark mode | Network images, hero overlay, category-filtered product grid, terracotta brand |
You'll need the Rust toolchain (with Android targets), the Android SDK/NDK, and an
emulator or device. mobiler doctor checks your host for the pieces it needs.
# build the CLI
cargo build -p mobiler
# check the host has everything needed
cargo run -p mobiler -- doctor
# scaffold a new app
cargo run -p mobiler -- new myapp
# build, install, and launch on a connected device/emulator
cd myapp
cargo run -p mobiler -- dev # or `watch` to rebuild on every changeOnce mobiler is on your PATH, the commands are simply mobiler new,
mobiler dev, mobiler watch, and mobiler doctor.
Dual-licensed under either of
- MIT license (LICENSE-MIT)
- Apache License, Version 2.0 (LICENSE-APACHE)
at your option.