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edgarzzin/README.md
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→ About

Backend engineer with a long run in iGaming platforms — real-money systems, crypto and fiat rails, provider integrations, and the kind of regulatory pressure that doesn't allow slack. That domain shapes how I approach scale and reliability everywhere else.

In parallel, I'm building two ventures, both in active development: the Muafans ecosystem (muafans.com · ads.muafans · MuaCoins crypto layer) and Muabooks (muabooks.com), an independent digital publishing house with its own in-browser reader across seven locales and Web3 payment rails on the roadmap.

Node and Python on the hot paths, React on latency-sensitive surfaces, AWS underneath. Cross-cutting expertise: Web3 / crypto rails, LLM tooling, and closing the gap between "ships fast" and "ships correct."

◇ Currently

focus:      iGaming platforms · real-time backend systems
building:   Muafans (creator + ads + MuaCoins) · Muabooks
web3:       crypto rails · stablecoin payouts · token-gated UX
phase:      both ventures in active development
stack:      TypeScript · Node · Python · React · AWS
location:   Brazil → working globally
status:     open to collaborations

◆ Tech Stack

▰ iGaming Platforms  ·  Backend Architecture

Multi-year work as backend lead on a real-money iGaming platform — a regulated, transactional environment where mistakes are measurable in dollars and downtime in churn. (Operator name held private.)

◉ Platform Engine

  • Real-time transaction processing and ledger
  • Player wallet, bets, settlements, payouts
  • Crypto rails — multi-chain deposits and withdrawals, stablecoin payouts, on-chain settlement
  • Multi-provider game integration layer
  • Socket.IO channels for live game state
  • Anti-fraud, AML, and chargeback handling across fiat and crypto

▥ Operator Tooling

  • Managerial-grade admin panel
  • Audit trail and compliance workflows (fiat + on-chain)
  • Bonus and promo engine
  • Risk dashboards and reconciliation
  • Provider, payment, and reporting integrations

Node.js · Express · MongoDB · Redis · Socket.IO · Payment APIs · Crypto / Web3 rails · AWS

▣ Muafans  ·  Creator Ecosystem  ·  In Development

Founder. muafans.com, ads.muafans.com, and the rails that connect them — a creator platform, a self-serve advertising marketplace, and a native digital currency, designed as one system. Currently in active development.

▸ Creator Surface

muafans.com — the consumer app.

  • For You algorithmic feed
  • Live video streaming on a low-latency pipeline
  • Photo galleries and VOD library
  • Posts, DMs, paid messaging
  • Subscription tiers, tips, and gifts
  • Creator analytics
  • Mobile-first responsive UI

◈ MuaCoins  ·  Native Currency

The economic primitive of the platform.

  • MuaCoins — in-platform credit
  • On-ramp store: buy MuaCoins with fiat or crypto
  • Spend on PPV, tips, subscriptions, gifts
  • Wallet, ledger, and reconciliation layer
  • Creator payouts and revenue splits
  • Anti-fraud and chargeback handling
  • Web3 settlement on the back

▦ ads.muafans

Self-serve advertising platform.

  • AdSense-style architecture
  • Targeting and audience segmentation
  • Real-time auction and bidding
  • Conversion tracking and attribution
  • Creative library with moderation
  • Advertiser dashboards and reporting
  • Revenue share back to creators

TypeScript · Node.js · Python · React · MongoDB · Redis · WebRTC / HLS · Stripe + crypto rails · AWS · Cloudflare

❖ Muabooks  ·  Independent Digital Publishing House  ·  In Development

Founder. muabooks.com — an independent publisher of literary dark romance and translated fiction of Eastern origin. Every volume is commissioned, translated, typeset, and distributed through an in-browser reader I'm building. Operated by Mua Holdings, LLC (Delaware). Currently in active development.

▣ Platform

  • Proprietary in-browser reader — books are read inline, never downloaded; the distribution surface is also the DRM boundary
  • Seven locales end to end: en · pt · es · fr · ja · ko · zh-Hant, with native CJK typesetting
  • PWA install, offline-aware, dark and light themes
  • Stripe checkout, Google OAuth, Cloudflare Turnstile on the edge
  • Web3 payment rails and token-gated collectible editions on the roadmap
  • DMCA-compliant operations pipeline (legal, takedown, escalation paths)

❦ Editorial  ·  Design

  • A curated catalog rather than a marketplace dump
  • Original commissions alongside licensed translations
  • Editorial and new-releases RSS, OpenSearch, multi-locale OG
  • Schema.org-rich SEO across every surface
  • Typography paired for long-form reading: Cormorant Garamond + Lora
  • Flexible reader UX — type sizing, line-height, sepia mode

React + Vite · i18n (7 locales) · Stripe · Web3 rails (roadmap) · Cloudflare · PWA · EPUB rendering · OAuth

→ Also Shipping

Telegram Automation  ·  payment bots, broadcasting, and real-time monitoring built for bursty, high-volume traffic. Python · Node.js · WebSockets

Commerce & Storefronts  ·  cart, checkout, payment-API integrations, and admin panels on a fast cache + edge layer. React · TypeScript · Node.js · Cloudflare

▤ GitHub Analytics

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"Premature optimization is the root of all evil" — Knuth · And yet, designed-for-scale is the difference between systems that survive growth and systems that don't.

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