Hugo Herrera

Pacific Financial NOC — Enterprise WAN Simulator

Live ↗

Interactive visual simulator of an enterprise WAN, built as a university project for Networking & Telecommunications Engineering. It compares a legacy MPLS/Cisco architecture with a modern 2026 design built on LEO satellite links, four wireless carriers and a perimeter firewall, across 23 modeled Chilean sites. It explores satellite handover logic and academic failure/recovery scenarios. Results are simulated and do not establish real-world availability or failover times. Zero runtime dependencies.

Network Design WAN MPLS LEO Satellites Failover / Handover HTML5 CSS3 JavaScript SVG

Flask Web App Security Audit

Live ↗

Full penetration test of a deliberately vulnerable Flask app: five findings — Command Injection, Reflected XSS, CSRF, unsalted SHA-256 password storage and an exposed debug console (RCE) — each located in source, proven with an OWASP ZAP scan of 999 requests plus manual exploits, and shipped with its own remediation. Every attack was run and verified to fire against the target and to be blocked against the hardened version.

OWASP ZAP Burp Suite Python Flask SQLite Open Source

Residential Security System

Live ↗

Automated security system with motion sensors, automatic door control, audible/visual alarm and surveillance camera. Includes nighttime logic (01:00–05:00) with autonomous activation. Runs on Raspberry Pi, Cisco Packet Tracer, or any PC in simulation mode — same codebase, zero changes.

Python Raspberry Pi GPIO Packet Tracer IoT Open Source

Smart Irrigation System

Live ↗

End-to-end IoT system built on Arduino with a YL-69 moisture sensor and water pump. Features automatic control via configurable thresholds, manual override, a Python GUI with 24h history chart, and a local REST API on port 8080 with a mobile-responsive web panel — all running 100% offline.

Python Arduino C++ Tkinter PySerial SQLite IoT Open Source REST API

Palworld Hardcore CLI

Live ↗

Native C++20 Linux CLI tool built to recover lost worlds due to Early Access game bugs and save lockouts. When a player loses a Hardcore world to an unfair glitch (e.g., getting hit through walls or geometry bugs), the in-game setting permanently locks itself. This tool performs binary reverse engineering on PlM1 (Oodle/Kraken) and PlZ (zlib) save containers, decompressing and editing the internal bHardcore & bPalLost flags to restore or re-synchronize permadeath status. Features automatic detection of Steam, Steam Deck, Proton, and Flatpak save paths, safety backups before editing, and JSON mode for scripting.

C++20 Reverse Engineering Oodle / Kraken zlib Linux / Steam Deck Open Source Proton / Steam

RivalScope — Competitive Team Builder & Battle Assistant

In development

Competitive desktop app (PySide6/Qt) that helps players build competitive teams. It pairs an interactive team builder with a Synergy & Gap Analysis Engine that flags weaknesses and coverage gaps, and an OpenCV-based Team Preview Assistant that reads the opponent's roster from screen capture. Backed by 449 unit tests and a GitHub Actions CI pipeline.

Python PySide6 / Qt6 SQLite Synergy Analyzer OpenCV / Sprite Matching CI / GitHub Actions Unit Testing (449 Tests)

On the bench

Roadmap

What I'm building next: an AI-assisted honeypot that maps attacker TTPs to MITRE ATT&CK, and a LoRa + MQTT IoT mesh for connectivity-free environmental monitoring. Repos go public as they take shape.

Python Machine Learning MITRE ATT&CK LoRa MQTT IoT Security