Transient network drops and Wi-Fi timeouts no longer promote a download straight to a hard Failed state. A shared retry engine classifies the error, emits a transient `Retrying` state, and runs a 3-strike exponential backoff (2s / 5s / 10s) while preserving the active download allocation (semaphore permit / worker slot). Resumability primitives are reused on every retry so no downloaded bytes are discarded. Engine core (src-tauri/src/retry.rs, new): - BACKOFF_SCHEDULE = [2s, 5s, 10s], MAX_RETRIES = 3 - backoff_for(strike): schedule index with graceful clamp beyond range - is_transient_network_error(msg): string classifier covering reqwest, yt-dlp, and aria2c phrasing; permanent conditions (HTTP 401/403/404/ 410/451, not-found, permission denied, out-of-disk) checked first so they always fail fast - backoff_and_emit / backoff_and_emit_cancel: cancel-safe sleep helpers driving a Retrying state emit before each delay - 9 unit tests covering schedule math, clamping, transient vs permanent classification, and permanent-wins-over-transient precedence State model (src-tauri/src/ipc.rs): - DownloadStatus::Retrying variant (serialized "retrying") - DownloadStateEvent::retrying(id, reason) constructor - Regenerated TypeScript binding: src/bindings/DownloadStatus.ts Native reqwest backend (src-tauri/src/download.rs): - DownloadEvent::Retrying variant (headless mirror) - CoordinatorEventSink::emit_retrying() drives the production download-state channel with status "retrying" - download_file retry core rewritten: transient -> emit_retrying -> backoff_for sleep inside a control_rx select (pause/cancel honored mid-backoff) -> re-issue Range header; permanent errors or strike exhaustion advance to the next URL then hard Failed yt-dlp media backend (src-tauri/src/lib.rs): - child spawn+stream loop wrapped in a 3-strike re-spawn loop; stderr tail classified and, if transient, the process is re-spawned after backoff (--continue resumes); --retry-wait=2 added to aria2c downloader aria2c backend (src-tauri/src/queue.rs): - retry-wait=2 option so aria2's internal retries are not rapid-fire - handle_aria2_download_error: intercepts transient onDownloadError, backs off, re-issues addUri, and rotates the stale gid -> id mapping via rotate_aria2_gid (fresh addUri mints a new gid; not rotating would detach subsequent WS events and leak the semaphore permit permanently) - aria2_payloads / aria2_retry_strikes tracking with cleanup on terminal outcomes Verification: cargo build clean; cargo test --lib 37 passed / 0 failed.
Firelink brings segmented downloads, media extraction, scheduling, and browser integration into one native-feeling desktop application. The current app uses a Rust backend with a React and TypeScript interface, replacing the original SwiftUI implementation.
Features
- Fast transfers with segmented downloading powered by aria2
- Media downloads through yt-dlp, FFmpeg, and Deno
- Persistent queues with configurable concurrency and speed limits
- Download scheduling with optional post-queue system actions
- Pause, resume, retry, and duplicate-file handling
- Smart organization with categories and configurable destinations
- Browser integration through the Firelink Companion extension
- Secure local handoff using authenticated extension pairing
- System integration including tray controls, notifications, and sleep prevention
- Built-in update checks backed by GitHub Releases
Installation
Important
The Rust and Tauri application is still completing release packaging. The current
v0.7.3macOS asset on GitHub Releases belongs to the archived SwiftUI implementation.
For now, run the maintained application from source using the development instructions below. New packaged builds will be published through GitHub Releases once the migration is complete.
Firelink is currently developed and tested on macOS. Production bundles include the media engines, so packaged releases will not require separate aria2, yt-dlp, FFmpeg, or Deno installations.
Browser Extension
Install Firelink Companion for Firefox to send browser downloads directly to Firelink. Pair the extension from Settings → Integrations using the generated local token.
Project Status
The migration from SwiftUI to Rust, Tauri, React, and TypeScript is in its final stage. The new application is the maintained implementation at the repository root.
| Target | Status |
|---|---|
| macOS | Active development and automated testing |
| Windows | Core architecture prepared; packaging and validation pending |
| Linux | Core architecture prepared; packaging and validation pending |
| Legacy SwiftUI app | Archived in legacy/swift |
See the changelog for release history and recent work.
Development
Requirements
- Node.js 22 or newer
- npm
- Rust and Cargo
- Tauri 2 platform prerequisites
Clone the repository with its browser-extension submodule:
git clone --recurse-submodules https://github.com/nimbold/Firelink.git
cd Firelink
Install dependencies and launch the desktop app:
npm install
npm run tauri dev
Run the frontend build and backend tests:
npm run build
cd src-tauri
cargo test --all-targets
Create a production bundle:
npm run tauri build
Native media executables and runtime files are expected in
src-tauri/binaries when running or packaging the application locally.
Repository Structure
.
├── src/ React and TypeScript interface
├── src-tauri/ Rust backend and Tauri configuration
├── Extensions/Firefox/ Firelink Companion submodule
└── legacy/swift/ Archived SwiftUI application
Technology
- Tauri 2 for the desktop runtime
- Rust and Tokio for native application logic
- React and TypeScript for the interface
- Zustand for frontend state
- SQLite for persistent application data
- aria2, yt-dlp, FFmpeg, and Deno for download and media processing
License
Firelink is available under the MIT License.