Kevin Llanes

Projects

Things I have built, deployed, or am actively breaking and repairing. Each entry says what it does, what I was responsible for, and whether it is still alive.

  • Lead App Developer, IoT Engineer

    An integrated system designed to enhance white oyster mushroom cultivation through IoT-based automation, real-time environment parameters inside an automated growing chamber, while a mobile application enables remote monitoring and system management.

    Flutter, NestJS, Next.js, PostgreSQL, SQLite, Firebase

    Live
  • SAGE.AI

    2024

    Head Frontend Developer & UI/UX Designer

    A story-adaptive game engine that shapes its narrative around the player. I led the frontend: designing the interface, establishing the component architecture, and maintaining the design system the team built on.

    React, TypeScript, Tailwind CSS, Zustard

    Archived
  • This portfolio

    2026

    The site you are reading. A config-driven Astro build with a separate CMS that edits every page's content, served entirely from my own hardware.

    Astro, Node.js, nginx

    Live
  • EduHub

    Database administrator, frontend developer, UI/UX designer

    A student management system in Java. I owned the database design, built parts of the frontend, and shaped the interface.

    Java

    Archived
  • SmartAlarm IoT

    Backend developer

    A smart alarm built on a Raspberry Pi: an alarm clock with the brains in a small Python backend talking to real hardware.

    Python, Raspberry Pi

    Archived
  • JavaRice

    UI/UX designer

    A point-of-sale application in Java with a graphical interface. I designed the UI and the flow behind it.

    Java

    Archived
  • Lakbay ni Pepe

    Full-stack developer

    An interactive e-book about José Rizal, built in C++, making history class clickable.

    C++

    Archived
  • 4Seasons

    Full-stack developer

    A four-season themed website animation, an early project where I practiced bringing interfaces to life with motion.

    HTML, CSS, JavaScript

    Archived
  • AI Developer, Python Developer, Technical Documentation

    EvoSim is an artificial life survival simulation exploring how neuroevolutionary algorithms can optimize autonomous decision-making in competitive, resource-scarce environments. Competing organisms governed by a custom Multi-Layer Perceptron (MLP) neural network navigate a discrete 25x25 grid, seeking sustenance and water, evading predators, enduring scheduled natural disasters, and competing in an ecological battle royale. Unlike conventional reinforcement learning that requires continuous gradient updates, EvoSim leverages genetic algorithms across generational epochs. Organisms that balance metabolic constraints, hazard evasion, and proactive foraging achieve higher fitness scores, ensuring their synaptic weights are selected, recombined through crossover, and propagated into future generations.

    Python, Astro, Typescript

    Live
  • Home server

    2025

    A repurposed machine running my personal services behind a reverse proxy—handling file sync, media, and hosting this portfolio. It is where I learned Linux administration for real: breaking configs, testing different distros, managing Docker containers, and fixing things when they went down. I route public access through Cloudflare, use Tailscale for secure private networking to test app connectivity, and handle remote management via SSH and a self-hosted RustDesk instance.

    Linux, nginx, systemd, Docker, Tailscale, Cloudflare Tunnel, SSH, RustDesk

    Live

In the works

Upcoming builds, active experiments, and unreleased software currently in development.

  • J'5 PMS and POS

    2024

    Project manager, full-stack developer, UI/UX designer

    Pharmacy management and point-of-sale system for a working pharmacy: inventory, sales, and records in one place. I managed the project, built the full stack, and designed the interface the staff use every day.

    React, Node.js, MySQL

    In progress