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q4ZAr/README.md

Hi, it's q4ZAr 👋

— Full-Stack Architect —

Polyglot engineer shipping across AI · Cloud · Web · Mobile · Web3

270+ repositories · 20+ organizations · 12+ languages · one very opinionated stack


TypeScript JavaScript Python Rust Go Swift Kotlin


◆ About

Picked this pseudo because I absorb a lot of information — curious, experimenting across every topic I find interesting, and always with the ambition of turning it into something real.

~ 25 Years of Passion 💗 about Technology
~ 17 Years working in the industry
~  6 Years as Admin Linux & Network
~ 11 Years as a Developer (Software · Web)

Now running my companies solo — with Claude as my army of developers. This is a new golden era, and I've never shipped this far, this fast, across this many domains.

Default posture: edge-first · event-driven · compiled when performance matters · self-hosted when the economics flip.


◆ Language Distribution

TypeScript        ████░░░░░░░░░░░░░░░░  23%
JavaScript        ███░░░░░░░░░░░░░░░░░  17%
TSX / React       ██░░░░░░░░░░░░░░░░░░  14%
SQL               ██░░░░░░░░░░░░░░░░░░  12%
Python            ██░░░░░░░░░░░░░░░░░░  11%
Astro · Swift · Go · Svelte · Rust · Kotlin · Vue

🎨 Frontend

What I build — SaaS dashboards, admin consoles, CRMs, marketplaces, auction houses, ticketing platforms, content-heavy marketing sites, documentation sites, interactive mapping apps, portfolio builders, news aggregators, e-commerce storefronts, community apps.

Stack Use case
Next.js (TSX) SSR dashboards, SaaS admin panels, CRMs, multi-tenant platforms
Astro Content-heavy landings, blogs, documentation, marketing
SvelteKit Lightweight news / media aggregators and fast consumer apps
Qwik Ultra-low-JS marketing and corporate sites
Vue + Quasar Interactive mapping and data-viz apps
React + Vite SPA admin consoles and internal tools
Tailwind CSS + shadcn/ui + FrankenUI The UI layer on ~80% of projects


📱 Mobile

What I build — native iOS healthcare and telemedicine apps, cross-platform community apps, knowledge companions, event apps, smart-home controllers, employee check-in systems with Bluetooth beacons and face verification.

Stack Use case
Swift / SwiftUI Native iOS with WebRTC, BLE beacons, face recognition, secure enclave storage
React Native + Expo Cross-platform consumer apps that share a codebase with the web
Kotlin Android targets when native matters


🔧 Backend

What I build — REST + GraphQL APIs, agentic AI backends, telemedicine services, e-commerce engines, real-time chat servers, event-driven platforms, bank data pipelines, payment backends, headless CMS and commerce integrations.

Stack Use case
Elysia on Bun My default "fast-by-default" typed API for SaaS and marketplaces
FastAPI (Python) AI control planes, vision pipelines, data-science endpoints
Django Admin-heavy classic webapps with large ORM surfaces
Flask Small Python APIs where FastAPI is overkill
Go + Fiber High-throughput HTTP microservices
Go + gRPC Binary protocols and service meshes
Rust + Actix + SeaORM Latency-critical services where GC pauses are unacceptable
Rust + Axum + Tokio Event-driven CQRS systems
Hono Edge-deployed workers
Strapi Headless CMS on PostgreSQL
Medusa Headless commerce with TypeORM, Redis, and Stripe


🗄 Databases & Data Layer

What I build — OLTP storage, OLAP analytics, full-text + vector search, graph relations, caching layers, message queues, and edge state.

Engine Use case
PostgreSQL Primary OLTP — via Drizzle, SeaORM, TypeORM or SQLAlchemy
SurrealDB Document + graph + relational on a single engine
ClickHouse Telemetry, product analytics, time-series aggregation
Elasticsearch Full-text + vector search for RAG pipelines
Redis Caching, rate-limits, session stores, pub/sub
TiKV + PD Distributed key-value cluster under multi-node SurrealDB (3-node HA)
Cloudflare D1 SQLite at the edge for low-latency state
MySQL When the ecosystem asks for it
MariaDB Legacy compatibility


☁ Infrastructure & DevOps

What I build — self-hosted clouds, Kubernetes fleets, FreeBSD-jails-based platforms, federated chat infrastructure, edge-first CDN deployments, GitOps pipelines, distributed-database clusters, device telemetry, and production-hardened database stacks.

Tool Role
Docker / Compose Every service I ship is containerized
K3s Lightweight Kubernetes for production workloads
Terraform Infrastructure as code on bare-metal and cloud
Helm + ArgoCD / FluxCD GitOps from day one
Traefik L7 routing for every microservice deployment
FreeBSD Bastille jails Container-like isolation without the Docker tax
Nginx Static-only — never as a reverse proxy
GitHub Actions CI/CD pipelines
Matrix / Synapse Federated chat infrastructure, self-hosted


🌐 Edge & Serverless

What I build — private file-sharing services, payment backends, multi-channel social publishing pipelines, P2P marketplaces with escrow, headless commerce, news aggregators, and device-telemetry dashboards — all fully serverless on Cloudflare.

Service Role
Cloudflare Workers Every edge-facing API
Cloudflare Pages Static + SSR frontends
Cloudflare D1 Edge-local SQL state
Cloudflare R2 S3-compatible object storage
Cloudflare Workflows Durable multi-step execution
Hono Framework of choice on the edge


🤖 AI / ML

What I build — more than half of my portfolio touches AI.

Subjects I've shipped

  • Agentic orchestration frameworks with tool use, memory, and subagents
  • Retrieval-Augmented Generation over private knowledge vaults, team documentation, and personal Obsidian libraries
  • Vision-language pipelines for OCR and document-to-markdown conversion
  • Defense-grade satellite imagery with object detection over dozens of target classes
  • Voice agents with real-time transcription and synthesis
  • Self-hosted open-source neural machine translation
  • Legal, tax, accounting, and contract AI assistants
  • Product-analytics and recommendation AI for e-commerce
  • Generative models for content creation and image recognition
Tool Role
PyTorch Training and fine-tuning
HuggingFace Model zoo, datasets, and pipelines
ONNX Portable, GPU-accelerated inference
Ollama Local LLM serving for privacy-sensitive RAG
FastAPI + Celery + Airflow Orchestration for long-running jobs
Elasticsearch Hybrid full-text + vector retrieval
Claude API Agentic workflows, tool use, and high-quality reasoning


⛓ Blockchain / Web3

What I build — decentralized identity, on-chain ticketing, token metadata registries, Web3 auctions, dApps, wallet integrations, escrow payments, and on-chain service discovery.

Subjects I've shipped

  • A live, production Solana program with a public on-chain program ID
  • Contributions to an official mainnet metadata registry (CIP-based)
  • Web3 auction houses with Radix-powered UIs
  • Event ticketing and community identity for electronic music communities
  • dApps with Phantom and Solflare wallet adapters
  • Stablecoin payment processing
  • On-chain service discovery via smart contracts
Chain Stack
Solana Rust + Anchor for programs, React + wallet-adapter for dApps
Cardano CIP-26 metadata, native tokens, GitHub-PR-driven registries
Ethereum Payment integrations and on-chain assets
Polygon L2 payments and NFTs


💬 Messaging, Realtime & Events

What I build — federated chat servers, event streams, video conferencing rooms, Telegram bots, WebSocket pipelines, and pub/sub fan-out systems.

Tool Role
Matrix / Synapse Federated chat, self-hosted homeservers, edge-deployed
WebRTC + LiveKit Real-time video and voice rooms
Apache Kafka High-throughput event streams
WebSockets Realtime UI state over SurrealDB and custom brokers
Telegram Bot API Community support bots
MQTT IoT and smart-home device messaging


🛠 Devtools & Developer Experience

What I build — tools I use myself, every day.

  • Whole-org repo sync tools, implemented three times over (Bash / Python / Go) against the same contract, so I can switch by context
  • Pattern-extraction over multi-org portfolios to generate "codebase-DNA" reports
  • Self-discovering portfolio sites driven by showcase.yml metadata files in each repo
  • Component libraries with Storybook and Phosphor icons
  • Clean-architecture starters in Go (Fiber · JWT · DDD) and Rust (Actix · SeaORM)
  • Rust backend interview-prep reference (Axum · Tokio · DDD · CQRS)
  • Lightweight security scanners
  • Obsidian plugins and knowledge-base tooling


🏛 Patterns I default to

  • SSR when it's a dashboard, SPA only when it's genuinely an app
  • Monorepos when teams share types, polyrepos when they don't
  • Event-driven over request-driven for anything multi-tenant
  • Edge-first for user-facing APIs, regional for data-heavy workloads
  • Typed everything — from DB schema to UI props
  • Self-host by default, managed services only when the economics flip
  • Clean architecture + DDD on the backends that matter
  • CQRS + event sourcing when write paths need to scale independently

🎯 Domains I've shipped in

AI / ML · Agentic Systems · RAG · Computer Vision · Voice Agents

SaaS · Fintech · Banking · Payments · Auctions

Blockchain / Web3 · DeFi · On-chain Identity · NFT Ticketing

Telemedicine · Healthcare · Legal · Accounting / Tax · Real Estate

EdTech · E-commerce · Headless CMS · DevTools

Event Ticketing · Community / Social · Marketing / Landings

Smart Home · Automotive · Hospitality · Logistics · Defense / GeoSpatial


polyglot. pragmatic. perpetually shipping — this is a new golden era.

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