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monsiu/README.md

Hi there, I'm Martin Nzau (Monsiu)

I ship complete products, not just code. Full-stack, mobile & smart-contract developer based in Nairobi, Kenya, available worldwide.

monsiu

Right now

  • ClauseShift is built, shipped, and live on five stores: an AI contract reviewer that cites the exact clause behind every risk it flags. Built end to end as a solo founder: Next.js backend, Flutter apps, self-serve billing, multi-store release automation, and a marketing site in seven languages.

    Google Play Web Amazon Appstore Microsoft Store Huawei AppGallery

  • Just launched PesaShift: see every shilling M-PESA takes. An on-device statement analyser for Android that parses M-PESA and Airtel Money PDF statements entirely on the phone, breaking down fees, Fuliza costs, and hidden charges Airtel never itemises. The statement never leaves the device. Direct APK, Zapstore, the Amazon Appstore, and the Huawei AppGallery today; Google Play in review.

    Direct APK Amazon Appstore Huawei AppGallery Zapstore Website

  • Custom RR is my most-starred project - 120+ GitHub stars, 1,900+ direct downloads, and open source since 2023. It gives 18 Android custom ROMs, 5 recoveries, and root solutions for 500+ devices a single home, shipping 1.3.x across five channels with store listings localized into 11 languages.

    GitHub stars Google Play Amazon Appstore F-Droid Zapstore GitHub Releases

  • Exploring onchain micropayment systems and agentic AI workflows.

Here's a bit about me:

Featured projects

  • ClauseShift - AI contract review that shows its receipts: every flagged risk quotes the exact source clause, with two-model cross-checks, risk scoring, and automatic key-date extraction. One product across web, Android, iOS, and desktop, with a free tier, Pro, and pay-as-you-go credits. Live on Google Play, the web, the Amazon Appstore, the Huawei AppGallery, and the Microsoft Store. Flutter, Next.js, Supabase, OpenAI.
  • PesaShift - Mobile-money statement analyser for Kenya that runs entirely on-device: parses M-PESA and Airtel Money PDF statements, walks the balance column to recover charges the statement never itemises, and breaks down fees, Fuliza borrowing, and spending patterns. No accounts, one-time Pro unlock, statement never uploaded. Live on the Amazon Appstore, the Huawei AppGallery, Zapstore, and direct APK. Flutter, with a pure-Dart parsing engine.
  • Custom RR - My most-starred project (120+ stars, 1,900+ downloads): a single home for popular Android custom ROMs, recoveries, and root solutions. 18 ROMs, 5 recoveries, 500+ devices, nightly freshness signals. Flutter, GPL-3.0.
  • NanoPay (Agentic Economy on ARC) - Per-request AI API where every query costs $0.001 USDC, settled onchain on Arc blockchain. 57+ live onchain transactions. Solidity, Node.js.
  • Aegis, SRE Guardian - Autonomous incident-response system with a three-agent AI pipeline and auto-generated post-mortems. Built for AMD Developer Hackathon 2025. Python, FastAPI, React.

Tech I work with

Web React Next.js TypeScript Node.js Tailwind CSS

Mobile Flutter Dart

Onchain Solidity

AI OpenAI Claude

Data & Tools Supabase PostgreSQL Python

My GitHub stats

stats productive time

Commit history

commit history graph

Pinned Loading

  1. Custom-RR Custom-RR Public

    An Android application to serve as the home of all custom ROMS and Recoveries

    Dart 122 2

  2. Agentic-Economy-On-ARC Agentic-Economy-On-ARC Public

    A per-request AI API where every query costs $0.001 USDC, settled instantly on Arc blockchain using Circle Nanopayments.

    JavaScript

  3. Autonomous-SRE-Self-Healing-Cloud-Guardian Autonomous-SRE-Self-Healing-Cloud-Guardian Public

    Aegis is an AI-powered SRE tool that monitors cloud infrastructure, detects incidents, diagnoses issues, and performs automated remediation through a live dashboard.

    Python 1