Banua Coder / Palu
From Pemkab Gowa's tax app to a consumer app in Dubai — we build systems that actually get used, not just launched.
From public sector to international consumer products.
PT Brantas Inti Utama 
Pemerintah Provinsi Sulawesi Tengah 
KlinikGo 
Pemerintah Kabupaten Gowa 
Pemerintah Kabupaten Donggala 
Pemerintah Provinsi Sulawesi Selatan 
Badan Pusat Statistik (BPS) Republik Indonesia 
Caretaker.id 
Detexi PT Brantas Inti Utama Pemerintah Provinsi Sulawesi Tengah KlinikGo Pemerintah Kabupaten Gowa Pemerintah Kabupaten Donggala Pemerintah Provinsi Sulawesi Selatan Badan Pusat Statistik (BPS) Republik Indonesia Caretaker.id Detexi We group our services by problem and use case, not just the technology involved.
Websites, mobile apps, dashboards, and operational systems built with real engineering depth and genuine business understanding.
Customer-Facing / Internal Ops / Product Engineering
View services →Visual identity, UI/UX, and social media management to build a consistent brand and strong digital presence.
Design / Social Media
View services →We have worked on a range of digital solutions — from consumer-facing apps and public information platforms to operational systems that help business processes run more smoothly.
View all portfolio →01Our own product2026
A personal and shared finance app that works fully without a signal. Lumbung pairs the logging speed of a money manager with shared spaces for couples, families, housemates and groups. Our own product, in active development and currently taking waitlist sign-ups.
In active, open development: the site is live with a waitlist, the app is not released yet
Flutter / Dart / Bloc / Melos / Go
View case study →02Our own product2026
Realtime tracker for TransPalu and Trans Donggala BRT — surfacing live bus positions and arrival estimates straight from the operator's Mitra Darat feed, in a fast web app that opens in any browser without install.
First public interface for tracking TransPalu & Trans Donggala in realtime
Vue 3 / TypeScript / Vite / Pinia / Tailwind v4
View case study →03Masjid Sejuta Pemuda2025
Performance audit and rescue of the Masjid Sejuta Pemuda app — a Flutter consumer app for an Indonesian Muslim youth community, originally built by a previous contractor. We diagnosed and fixed jank and rebuild loops that made the app feel sluggish on lower-end devices, using Flutter's built-in Performance Overlay and Rebuild Rainbow as objective evidence before and after.
Max frame time dropped from 62.8 ms (severe jank) to <16 ms (60 fps target met)
Flutter / Dart / Performance Overlay / Widget Rebuild Tracking / Custom Widgets
View case study →We help translate business needs into realistic, phased digital solutions.
We focus not just on visual output, but on structure, maintainability, and a system's readiness to grow.
We work with a clear process: discovery, alignment, implementation, testing, launch, and support.
We have exposure across consumer-facing products, public systems, and diverse business operational needs.
A clear process from start to finish, so working with us feels low-risk from day one.
Understanding your business context, pain points, and priorities.
Defining scope, solution structure, and realistic implementation phases.
Mapping flows, UI direction, and validating key requirements before full implementation.
Building the system in a structured, iterative, and measurable way.
UAT, critical revisions, and go-live preparation.
Monitoring, maintenance, and continued development support.
Three processes from systems we built. Pick one and see which manual steps the system took over.
Internal correspondence at a provincial public works agency (Surat BMPR).
Process time (illustrative)
Source: Surat BMPR
Tax and levy bills for residents (Patonro, Lontara).
Process time (illustrative)
Personnel administration for a district government (Siap Donggala).
Process time (illustrative)
Source: Siap Donggala
Illustrative, not a measurement. Step labels follow what each case study says the system replaced. Step counts and the time bar are a sketch, not client data or measured savings.
Looking to present more professionally, build loyalty, and streamline operations.
That want a stronger digital presence and a clean membership system.
That need citizen-facing apps, dashboards, or internal system modernization.
Still relying on manual processes and ready to scale with better structure.
That need MVPs, operational systems, or a thinking partner — not just an execution vendor.
PUBLIC SECTOR CAPABILITY
Banua Coder is a technology partner that helps businesses and organizations design and build digital solutions relevant to their needs — from websites and mobile apps to dashboards and internal operational systems. We combine product thinking, engineering discipline, and a practical implementation approach so every solution is not only built, but ready to be used and grown.
More about us →Founder & Director
Led by engineering experience across product, platform, and operational systems
Ryan's experience spans consumer products for the international market (Dubai/UAE), public-sector and regional tax systems, and platform engineering at GoTo Financial, Reku, and Stockbit/Bibit. Banua Coder approaches every project with a combination of product thinking, engineering depth, and cross-context business operational understanding.
Full profile →Selected background
Built on Mason bricks and Melos. Generate a consistent Flutter foundation with core, UI kit, navigation, network layer, and state management in minutes, not weeks. There are 76 bricks: 50 Free, 20 Pro, and 6 Enterprise. The CLI is free.
Browse the 76 Archipelago bricks ↗ Archipelago getting started guide ↗
Not sure about the cost?
Try the estimate calculator →Start a project
We map it out in a 30-minute call. Free, no lengthy proposal. The founder answers directly.