Independent Product Studio • Actively Shipping

Engineering Purposeful Software with Zero Bloat.

Giantplay creates lean, high-performance web applications and developer tools. From mobile-first personal finance to pediatric health checklists and universal design systems, we build end-to-end solutions that respect user attention and system resources.

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Flagship Web Apps

Universal Design System

100%

Zero-Bloat Architecture

<50ms

Local Response Latency

About Giantplay

Craftsmanship Over Complexity

Why we build software the way we do.

In an industry plagued by bloated JavaScript bundles, fragile microservice sprawl, and endless SaaS subscriptions, Giantplay takes the opposite path: radical simplicity.

We believe great software should be instantaneous, respectful of hardware, and resilient by default. We specialize in standalone applications powered by clean Go backends, embedded SQLite with WAL mode, and ergonomic React or pure CSS user interfaces.

Every product in our studio portfolio was born out of a real personal or community need — from daily cashflow discipline (FlowSpend) to clinical infant nutrition prep (MPASI Prep Tracker) and universal UI tokens (G-UI).

"Build the smallest piece of software that solves the problem completely. Never speculate, never overcomplicate."

Gian Permana

Founder & Full-Stack Engineer • View Portfolio

⚡

Embedded Reliability

No heavy external database servers or complex cloud orchestrators. Our applications run reliably on single machines with embedded SQLite WAL mode.

📱

Mobile-First Ergonomics

Designed around real thumb reach, fast bottom navigation sheets, and instant feedback loops, making daily workflows effortless.

🛠️

End-to-End Ownership

From initial user stories to Go REST APIs, React components, Linux systemd units, and Docker deployments — built with senior craftsmanship.

Studio Portfolio

The `app-` Suite & Ecosystem

Tested, production-ready applications engineered for real humans.

💳

Live App

FinTech & Productivity

FlowSpend

A mobile-first income and spending tracker engineered for swift daily expense entry, net cashflow visibility, and comprehensive monthly & yearly financial recaps.

Instant expense & income recording with touch modal sheets
Monthly recap: net cashflow, savings rate, and category distribution
Year-over-year monthly comparative trend analytics
Embedded SQLite WAL mode with zero-configuration persistence

Go 1.22+ React 18 SQLite WAL Vite JWT Auth systemd

🥣

Live App

HealthTech & Family Care

MPASI Prep Tracker

A clinical pediatric nutrition and kitchen preparation checklist for mothers (Bunda), ensuring nutritional adequacy and kitchen tool hygiene to prevent stunting based on IDAI & WHO standards.

3-tier priority checklists: Wajib (Essential), Dianjurkan, and Opsional
Age-adapted texture, portion, and feeding frequency guidelines (6–12+ months)
Utensil hygiene protocol preventing bacterial cross-contamination
Interactive session resets for daily cooking cycles & celebrations

Go 1.22+ React SQLite WAL Vite IDAI/WHO systemd

🎨

Open Source

Developer Platform & Design Tokens

G-UI Design System

A lightweight, zero-dependency pure Vanilla CSS design system engineered for SaaS applications, dashboards, and creative portfolios with 4 distinct design aesthetic styles and 6 curated accent palettes.

4 design flavors: Modern, Retro (Neo-Brutalist), Classic (Serif), Simple (Swiss)
Dual adaptive Dark & Light themes with system detection
Zero external dependencies, no npm modules, zero build step (<3KB)
Pre-built accessible components: Buttons, KPI cards, Modals, Toasts

CSS3 Variables Vanilla JS Zero Dependencies Design Tokens MIT License

Interactive Showcase

Experience the G-UI Design Lab

Switch style flavors below to watch the entire company profile change in real time.

Live Monthly Cashflow

+Rp 8.450.000

↑ 18.2% vs previous month

Clinical Priority Item

Hati Ayam & Daging Sapi

Protein Hewani pencegah anemia zat besi & stunting bayi.

🔴 Prioritas 1: Wajib

Component Showcase

Tactile Actions

Responsive click states and customized borders adapted to the active style.

Engineering Ethos

The Giantplay Principles

Our rules of engagement for building enduring digital products.

Minimum Viable Code

Write only the code strictly required to solve the problem. No speculative architecture, no single-use abstraction layers, and no artificial complexity.

Mobile-First by Default

People interact with the world through phone screens. We design every workflow, form sheet, and tap target for natural single-handed operation before expanding to desktop.

Embedded & Self-Reliant

Single-binary deployments with embedded SQLite WAL mode. Zero external databases to configure, zero network roundtrip hops, and bulletproof uptime.

High-Signal Delivery

Every repository includes runnable test suites, lean architecture specifications, and one-line startup scripts (`run.sh`) that work out of the box.

Technical Foundation

Proven Technology Stack

Selected for speed, longevity, and operational simplicity.

🐹 Backend Services

Go (1.22+) net/http & chi
RESTful APIs JSON contracts
JWT & Bcrypt Stateless Auth
Goroutines Concurrent jobs

⚛️ Frontend & UI

React 18 / Next.js Component UX
Vite Instant dev builds
G-UI Tokens Vanilla CSS tokens
Tailwind CSS Utility styling

💾 Data Persistence

SQLite (WAL Mode) Embedded speed
PostgreSQL Relational scale
Redis Caching & pub/sub
Pure Go Drivers modernc.org/sqlite

🚀 DevOps & Runtime

Linux systemd User unit lingering
Cloudflare Tunnels Encrypted ingress
Docker & Compose Containerization
Git & CI/CD Trunk development

Get in Touch

Connect with Giantplay

Interested in our applications, engineering methods, or custom collaboration?

Let's Build Something Meaningful

Whether you have feedback on FlowSpend or MPASI Prep Tracker, want to adopt G-UI in your organization, or need senior full-stack craftsmanship, we welcome conversations.

✉️

Email Direct

giantplay.dev@gmail.com

🐙

GitHub Organization

github.com/giantplay-dev

👤

Founder Portfolio

portfolio.gianpermana.my.id