kohei

DON'T BE USED. BE THE UNCOUNTED.

Published Apps

Hakari Hakari is a privacy-first weight and body-composition logger. Your measurements never touch a vendor cloud: they live encrypted on your device and back up to your own Nostr relays, NIP-44 encrypted so relays only ever see ciphertext. Features Standard Bluetooth GATT scales (Weight Scale 0x181D / Body Composition 0x181B) work fully offline — step on, reading appears Full TANITA-style body composition: body fat %, water %, muscle mass, visceral fat, bone mass, BMR, metabolic age TANITA Health Planet cloud import (official API) with full-history paging for TANITA scale owners Health Connect / Apple Health sync (weight & body fat read/write) Workout-readiness & fat-loss-efficiency card from your sleep and activity (research-based, transparent heuristic — tap ⓘ for the methodology) Nostr backup: kind 1351 weight events (NIP-101h) plus encrypted kind 30078 full-entry backups; restore from relays on any device Amber (NIP-55) signing — the app never sees your key; silent ContentProvider signing under "always approve" Tor support via Orbot SOCKS5 proxy Encrypted local storage (Keystore-backed), WeightLogger-compatible CSV / JSON export No telemetry. No analytics. No accounts.
Meiso Meiso is a minimalist task management app built on the Nostr protocol. Inspired by TeuxDeux's clean design, it provides a simple three-column layout (Today/Tomorrow/Someday) with end-to-end NIP-44 encryption — for your own tasks and, now, for lists you share with others. Features Three-column task layout (Today/Tomorrow/Someday) Shared collaborative lists: invite people and edit a list together in real time, end-to-end encrypted so relays only ever see ciphertext Collaborator attribution: see who added or edited each shared task Recurring tasks (daily, weekly, monthly, yearly) Personal custom lists for organization Multi-device synchronization via Nostr relays NIP-44 end-to-end encryption for privacy Amber signer integration for secure key management Tor connection support via Orbot proxy Material 3 design with light & dark mode Multi-language support (English, Japanese, Spanish) Pull-to-refresh sync Drag and drop task reordering All your tasks are encrypted and synced across devices using Nostr relays, ensuring both privacy and accessibility without any central server.

ZapClock ZapClock is a funny alarm app powered by the Bitcoin Lightning Network. The alarm can only be stopped by sending a Lightning payment - a unique way to start your day by supporting the Bitcoin/Nostr community! 🚨 Key Features: Alarm stops ONLY when you send Lightning sats Or use as a regular alarm (without payment requirement) Recurring alarms with flexible day-of-week scheduling (once, daily, weekdays, weekend, custom) Custom alarm sounds and ringtones Vibration support Wake up and contribute to the ecosystem every morning ⚡ Lightning Integration: Nostr Wallet Connect (NWC) - use your existing wallet (Alby, Mutiny, etc.) Lightning Address support with LNURL-pay protocol Penalty Preset System - Choose from 6 smart presets:⚡ 15 seconds / 21 sats 🔥 30 seconds / 42 sats 💪 1 minute / 100 sats 😴 5 minutes / 500 sats 😱 10 minutes / 1,000 sats 💀 15 minutes / 2,100 sats ⚙️ Custom (set your own timeout and amount) Configurable donation recipients via YAML Default recipients: ZapClock Developer, Zeus Wallet Developer, Sparrow Wallet Developer Per-alarm recipient override supported Payment messages automatically included ("donation from ZapClock") Secure: NWC connection stored locally only Alarm continues ringing if payment fails (ensures you wake up!) 🌍 Internationalization: Multi-language support (English and Japanese) Easy to add more languages via ARB files 🎨 Design: Material Design 3 with dynamic colors Dark theme support (automatic) Bitcoin/Lightning-themed orange palette Simple, intuitive interface Onboarding screen for first-time users Permission management system 🔧 Technical: Rust backend for cryptographic operations (nostr-sdk, nwc) Flutter for smooth cross-platform UI Riverpod 2.6.1 for state management Android 6.0+ (API 23+) support flutter_rust_bridge for seamless Rust-Flutter integration Enhanced logging and error handling ProGuard optimization for production builds ✨ Fully Functional & Ready to Use: ZapClock is production-ready with all core features implemented and tested! Wake up every morning knowing you're supporting the Bitcoin/Nostr ecosystem. 🔮 Future Enhancements: Amber (Nostr Signer) integration for secure Nostr login Donate to your Nostr follows - random selection with Lightning Address Identity-aware zaps (NIP-57 support) Payment history and analytics iOS support Perfect for Bitcoin enthusiasts who want to start their day by supporting the decentralized ecosystem! ⚠️ Requirements: Nostr Wallet Connect (NWC) compatible wallet (Alby, Mutiny, etc.) for Lightning payment features Android 6.0 or higher

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