# ponkster.me

> Systems Thinker: half Mad Scientist, half Social Alchemist, 100% metalhead.

I'm Imron Setio Widodo, independent System Engineer practitioner. After 18+ years across e-government, enterprise SaaS, and cross-border joint ventures — including leading engineering teams at YCP Holdings Global in partnership with Mercari Japan — I returned from management to hands-on engineering. Management taught me how to decompose complex domains, specify strict invariants, and review rigorously: the exact discipline required to architect and ship production platforms end-to-end.

- Website: https://ponkster.me
- Contact: origin.ponkster@gmail.com
- Location: East Java & Jakarta, Indonesia

## Capabilities

### DDD Modular Monoliths & Enterprise Systems
We architect and ship production backends in Rust (Axum, Topcoat, SQLx) and Go (Fiber, sqlc) structured around Domain-Driven Design. By enforcing strict crate boundaries, transactional outbox projections, and compile-time verified SQL over PostgreSQL and SQLite WAL, we replace fragile microservice sprawl with auditable modular monoliths.
Tags: Rust & Axum / Topcoat, Go & Fiber v3, DDD Modular Monoliths, SQLx & sqlc (Compile-Time SQL), PostgreSQL & SQLite WAL, Transactional Outbox & CQRS, StoneMQ & Redis Streams, Nix Flakes & Crane, Operational Ledger ERPs

### Real-Time DSP, Low-Latency & Native GPUI
When latency and hardware utilization matter, we drop down to modern C++ (C++20/23, userver), C (io_uring, raw sockets), and native Rust (Zed GPUI, cpal, rustfft). From 100Hz contactless radar vital-signs extraction and Doppler audio sonification to wearable telemetry pipelines with ~15ms p50 alert fan-out, we engineer deterministic hot paths.
Tags: C++20/23 & userver, Rust & Zed GPUI Desktop, C & Linux io_uring, FFT & Hilbert Radar DSP, Real-Time Audio (cpal), Wearable Telemetry & HRV, WebSocket & Socket.IO Fan-Out, CMake & GoogleTest, Rust <-> C FFI

### Edge AI, Knowledge Graphs & Hypermedia Web
We integrate applied AI and modern web interfaces where they create measurable operational leverage: running UltraFace, YOLO11n, and VAD models inside browser WebAssembly via tract-onnx to cut cloud GPU costs by 97%, grounding procurement intelligence in PostgreSQL pgvector knowledge graphs, and delivering instant hypermedia and Svelte 5 interfaces.
Tags: WebAssembly & tract-onnx, ONNX Runtime & WebGPU, PostgreSQL pgvector & Graphs, Topcoat SSR & HTMX, Svelte 5 Runes & SvelteKit, Agentic LLM Gateways, Editorial Design Systems, Programmatic SEO Engines, End-to-End Delivery

## Selected Case Studies

- [Beehome Architect: Warm Monolith Digital Flagship](https://ponkster.me/case-studies/beehome-architect/llms.txt): Rebuilding an Indonesian architecture and construction studio around a single-binary Rust + Topcoat hypermedia stack. (Beehome Architect & Builders, 2026). Page: https://ponkster.me/case-studies/beehome-architect
- [Pendar OS: Modular Monolith ERP & Operational Ledger](https://ponkster.me/case-studies/pendar-os/llms.txt): Replacing a legacy admin-template workflow with a domain-driven Go + SvelteKit ERP built around strict margin tracking and a Cobalt operational ledger. (Pendar Cahaya Nusantara (PCN), 2026). Page: https://ponkster.me/case-studies/pendar-os
- [Telix: Edge-WASM AI Proctoring & Recruitment Platform](https://ponkster.me/case-studies/telix/llms.txt): Combining an Axum + StoneMQ Rust backend with client-side WebAssembly ONNX inference for real-time exam monitoring and video interviews. (Niten.ID, 2026). Page: https://ponkster.me/case-studies/telix
- [Katon: Agentic Procurement Intelligence & Context Graph](https://ponkster.me/case-studies/katon/llms.txt): Closing the procurement Insight-Action Gap with a 4-layer agentic stack, Jev-AI typed decisioning + LLM narrative explanations, and human-in-the-loop ERP remediation. (Niten.ID, 2026). Page: https://ponkster.me/case-studies/katon
- [MyTitikTerang: Spiritual Reflection & Live Class Platform](https://ponkster.me/case-studies/mytitikterang/llms.txt): Full-stack community learning portal with progressive profile gates, live Zoom class orchestration, and gamified reflection workflows. (Titik Terang, 2026). Page: https://ponkster.me/case-studies/mytitikterang
- [AntiBrainRot: GPUI Active-Recall Engine for Engineers](https://ponkster.me/case-studies/antibrainrot/llms.txt): A native Rust and GPUI desktop application that turns hand-maintained engineering markdown notes into spaced-repetition review cards. (Internal Product, 2026). Page: https://ponkster.me/case-studies/antibrainrot
- [VitalMonitor RS: Contactless Microwave Radar Vital Signs](https://ponkster.me/case-studies/vital-monitor-rs/llms.txt): Rewriting a legacy Python medical radar workstation into a hardware-accelerated Rust, GPUI, and ONNX real-time telemetry system. (Confidential, 2025). Page: https://ponkster.me/case-studies/vital-monitor-rs
- [Amazfit: Polyglot Wearable Telemetry Platform](https://ponkster.me/case-studies/amazfit-v2/llms.txt): High-throughput field-engineer health monitoring combining a C++ userver ingestion tier, NestJS WebSocket fan-out, and a React 19 PWA. (Confidential, 2026). Page: https://ponkster.me/case-studies/amazfit-v2
- [Programmatic SEO: Multi-Country Content & Landing Engine](https://ponkster.me/case-studies/programmatic-seo/llms.txt): Decoupled Laravel Filament 3 operations hub and Next.js storefront for bulk multi-country landing page generation and translation. (, 2025). Page: https://ponkster.me/case-studies/programmatic-seo
- [SregERP: Light-Steel DDD Modular Monolith](https://ponkster.me/case-studies/sregerp/llms.txt): A 9-crate Rust + Svelte 5 ERP for light-steel manufacturing with meter-level stock segment lineage, cut optimization, and realized-waste accounting. (Wisma Karya / Lentera Baja, 2026). Page: https://ponkster.me/case-studies/sregerp