Nowser

A secure nostr key management and signing app for iOS and Android that supports multiple authentication methods:

• NIP-07: Acts as a browser extension replacement for mobile, allowing you to securely sign into nostr web apps
• NIP-46: Functions as a remote signer (like a "bunker"), letting you keep your private keys on your phone while signing requests from your desktop
• NIP-55: Supports Android's native key management system for secure key storage (similar to Apple Keychain)

This app helps you manage your nostr identity securely across devices while maintaining control of your private keys. It's designed to be a mobile-first solution for the growing nostr ecosystem.

Platforms

Platforms	NIP-07	NIP-46	NIP-55
Android	√	√	√
IOS	√	√
MacOS	√	√

Downloads

Android: Downlaod From Release https://github.com/haorendashu/nowser/releases

IOS: Download from TestFlight https://testflight.apple.com/join/b4zVVxaM

MacOS: Download from TestFlight https://testflight.apple.com/join/9VD8rk5B

Building from Source

Prerequisites

• Flutter SDK
• Android Studio (for Android builds)
• Xcode (for iOS builds)
• Git

Platform-Specific Notes

iOS/macOS Prerequisites

1. Install CocoaPods if you haven't already:

sudo gem install cocoapods

2. Install project CocoaPods:

cd ios  # or 'cd macos' for macOS builds
pod install

3. Open the workspace in Xcode:

open ios/Runner.xcworkspace  # or 'open macos/Runner.xcworkspace' for macOS

4. In Xcode:
   • Select the Runner project in the navigator
   • Select the Runner target
   • Under Signing & Capabilities:
     • Select your Team
     • Update Bundle Identifier if needed
   • If building for macOS, ensure the following capabilities are enabled:
     • Outgoing Connections (Client)
     • Incoming Connections (Server)

Web

flutter build web

• The web build will be available in build/web directory
• You can serve it using any web server
• For local testing, you can use Python's built-in server:

cd build/web
python -m http.server 8000

Desktop Builds

• For Windows, you need Visual Studio with "Desktop development with C++" workload
• For Linux, you need the following dependencies:

sudo apt-get install clang cmake ninja-build pkg-config libgtk-3-dev liblzma-dev

Build Instructions

1. Clone the repository with submodules:

git clone --recursive https://github.com/haorendashu/nowser.git
cd nowser

2. If you already cloned without submodules, initialize and update them:

git submodule init
git submodule update

3. Install Flutter dependencies:

flutter pub get

4. Build the app:

• For Android:

flutter build apk

• For iOS:

flutter build ios