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  • México

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crowslayer/README.md

Alex Herrera

Backend · Automation · APIs · Geospatial tools
I turn messy real-world workflows into software people actually use.

WhatsApp API · Hermes · Hunab-ku · Redof

TypeScript Python Node.js MongoDB PHP

What I build

Practical systems for messaging, office automation, cadastral GIS and public-data extraction — mostly TypeScript and Python, with a strong bias toward clean architecture when the problem needs it.

Project What it solves Stack
whatsapp-baileys-api Multi-instance WhatsApp REST API: QR/pairing, media, groups, campaigns TypeScript · Node · MongoDB · DDD/CQRS
hermes Personalized bulk email from Excel + Outlook (templates, variables, attachments) VBA · Excel · Outlook
hunab-ku Locate cadastral plots from UTM, bearings and distances; export HTML/GeoJSON Python · Shapely · PyProj · Folium
Redof Download, parse and search Mexico’s Diario Oficial de la Federación Python · PDF · scraping

Currently

  • Shipping backend APIs and automation for real business workflows
  • Deepening hexagonal architecture / DDD on production-shaped services
  • Open to technical collaborations (APIs, GIS, office automation, LATAM public data)

Stack

Languages: TypeScript · Python · JavaScript · PHP · VBA
Backend: Node.js · REST · MongoDB · Express
Architecture: Hexagonal · DDD · CQRS · MVC / HMVC
Data & GIS: GeoJSON · UTM · PDF pipelines · Excel/Outlook automation

GitHub stats Top languages

Issues and PRs are welcome — start with any of the projects above.

Popular repositories Loading

  1. Kukulcan Kukulcan Public

    PHP 1

  2. Redof Redof Public

    Python tool for downloading, parsing and searching Diario Oficial de la Federación (DOF) documents.

    Python 1

  3. hermes hermes Public

    📧 Excel + Outlook automation for sending personalized emails with templates, dynamic variables and attachments.

    VBA 1

  4. hunab-ku hunab-ku Public

    🗺️ Geospatial desktop application for locating cadastral properties using UTM coordinates, bearings and distances.

    Python 1

  5. whatsapp-baileys-api whatsapp-baileys-api Public

    REST API for managing multiple WhatsApp instances using Baileys and TypeScript.

    TypeScript 1

  6. bugatsinho.github.io bugatsinho.github.io Public

    Forked from bugatsinho/bugatsinho.github.io

    Bugatsinho PelisPlus

    Python