Lucas Clinic System
A clinic management system covering patient records, appointments, and day-to-day medical practice operations.
- Laravel
- Vue.js
- MySQL
- Paymongo
- SaaS
A Sidewalk Developer Bacolod City, Philippines
Turning complex workflows into clean, reliable software.
I'm Jerwin Arnado — a Senior Full-Stack Software Engineer specializing in Laravel, Drupal, and Vue.js. Since 2018 I've built SaaS platforms, clinic systems, ERP modules, and the open-source tools I wish existed.
About
More than just making features work
I focus on structure, maintainability, user experience, performance, accessibility, and long-term scalability. My goal is to build software that feels simple for users, reliable for teams, and strong enough to grow with the business.
By day, I develop web applications that solve real-world problems in healthcare systems, data management, and automation. By night, I'm usually experimenting in my home lab — Proxmox, Docker, and Linux — building tools for the self-hosted and developer community.
And the name? jackwander started as a misspelled in-game name typed by an 8-year-old in a Bacolod computer shop in 2004 — a stray, not an admiration. It stuck. Read the full story →
Skills
- Backend
- Laravel Drupal PHP MySQL C# / .NET REST & API design
- Frontend
- Vue.js JavaScript Tailwind CSS Nuxt React
- Mobile
- Flutter Ionic
- Server Admin & DevOps
- Linux server administration Nginx Docker Proxmox CI/CD pipelines AWS DigitalOcean Acquia Cloud
- Practices
- System architecture Database design & optimization Automation AI-assisted development Accessibility
Selected work
Projects
Thrifty Carts
A cross-platform grocery assistant app that helps shoppers plan carts and track spending, published on the Play Store.
- Flutter
- Mobile
Open source
Graveyard Analytics
A Jellyfin plugin that helps media-server owners manage their library's "afterlife" — tracking unwatched media, monitoring playback activity, detecting abandoned content, and auto-generating "Leaving Soon" collections to reclaim storage.
- C#
- .NET
- Jellyfin
Laravel Module Maker
A Laravel package that instantly generates modular boilerplate for large applications — keeping projects clean, organized, and scalable.
- PHP
- Laravel
- Package
If my open-source work has helped you, you can support it on Ko-fi.
Earlier work
Roundbooking
Legacy project
A pixel-perfect PSD-to-HTML conversion for a booking product's marketing site.
- HTML
- CSS
- JavaScript
Negros Bank Checker
Legacy project
A web application providing status information for every bank across Negros Island.
- PHP
- MySQL
Mike Vinco Blog
Legacy project
A Jekyll blog featuring multiple content collections.
- Jekyll
- Ruby
ALESI Lot & Reservation Management
Private client work
A lot reservation and transaction management system built after studying the client's business flow — reducing transaction errors and making their service more efficient.
- PHP
- MySQL
RGO Business Management
Capstone project
Reporting system generating company, payment, enrollment, board-passer, and passing-rate reports per course and per year.
- PHP
- MySQL
Background
Where I've made an impact
- SaaS Platforms
- Multi-tenant SaaS with subscription billing and payment-gateway integration — architecture, backend, and frontend.
- Healthcare & Clinic Systems
- Clinic management covering patient records, scheduling, and practice operations (Lucas Clinic System).
- ERP & Business Systems
- Purchase orders, vouchers, expenses, ledgers, roles and permissions, and project management modules for operating businesses.
- Real Estate & Booking
- Property listing platforms and reservation systems, from data modeling to client-facing UI (ALESI).
- Data Migration & Employee Tools
- UKG Pro data migration and internal employee tooling.
- Server Administration & Infrastructure
- Provision, secure, deploy, and maintain Linux servers end to end — from cloud production (AWS, DigitalOcean, Acquia) to Docker and CI/CD pipelines.
- Open Source & Homelab
- Jellyfin plugins, Laravel packages, and self-hosted infrastructure on Proxmox, Docker, and Linux.
Writing
Latest posts
engineering
Building Real Things
The whole loop, end to end: one feature from a prompt to a deployed change — the wins, the dead ends, and the honest accounting of what agentic engineering is and isn't good at yet.
engineering
Guardrails and Trust
An agent that can run any command is powerful and dangerous in the same breath. Permission modes, destructive-action gates, and reviewing diffs — how I let an agent ship to a live Synology box without losing sleep.
engineering
Subagents and Parallel Work
One agent in one context window hits limits. Delegating research to subagents, isolating context, and working in parallel with git worktrees — plus the trap of over-delegating.
Work with me
Hire, or help fund the open source
For teams & founders
Available for select projects
I take on a small number of freelance and consulting engagements — Laravel, Drupal, and Vue.js builds, SaaS platforms, clinic and ERP systems, API integrations, and untangling software that has outgrown its original design. If that sounds like your problem, let's talk.
Start a conversationFor the community
Support the open source
Tools like Graveyard Analytics and Laravel Module Maker are free and built in my own time. If they've saved you some, a small contribution keeps them maintained — no pressure, every bit helps.
Contact
Let's build something
Have a project in mind, a system that needs untangling, or a question about something I've built? I'd love to hear from you.
Email me directly at [email protected] or find me on GitHub.