I ship production systems end to end — school ops with signed QR attendance, privacy-first web apps, and AI agents that turn messy evidence into verified handoffs.
I am a Computer Engineering student in the D4 Teknologi Rekayasa Komputer program at Politeknik Caltex Riau, based in Pekanbaru.
I design, build, and operate school-ops software used in a school setting — attendance with HMAC-signed QR flows, and digital assessment platforms with FastAPI, Go, and Flutter clients. The focus is engineering: integrity controls, audit trails, and systems that stay maintainable in production.
Alongside that, I ship privacy-first web apps and AI agent systems — Planner–Executor–Critic orchestration, evidence-to-handoff workflows, and OpenCode overlays with routed skills and MCP. Current exploration stays in full-stack engineering, application security, agent orchestration, and reliable deploy.
Politeknik Caltex Riau · D4 Teknologi Rekayasa Komputer
Studying computer engineering while building and operating the systems described on this site.
SIAB2 · SIAB1 · LensaDiri
Building and operating school-ops attendance and assessment software, plus privacy-first web systems with security and audit boundaries.
Tanggap60 · Aegis-IDX · OpenCodeHighEnd
Shipping AI agents and tooling — fraud-evidence handoff workflows, Planner–Executor–Critic IDX investigation, and an OpenCode 2 overlay with routed skills and MCP.
Pinned production systems, privacy-first apps, and recent AI agent builds. Architecture notes come from the public repositories.
Production
Academic and attendance system with a signed Android QR flow, audit logs, and a reconciliation worker.
NestJS · React · Vite · TypeScript · Prisma · PostgreSQL · Redis · Nginx · Docker Compose
Production
Digital assessment platform with FastAPI control plane, Go student hot-path, and Flutter / Android kiosk clients — integrity journal, monitoring, and audit logging.
FastAPI · Go · Flutter · Android · PostgreSQL · Redis · Celery · Docker
Independent Project
Privacy-first self-exploration web application with row-level security, consent, and audit boundaries.
Next.js · React · TypeScript · PostgreSQL · Supabase tooling · Zod · Argon2id · Vitest · Playwright
Agent tooling
OpenCode 2 overlay with 62 routed skills, a thin AGENTS.md router, MCP pins, Design Bank, and evidence-blocked done-gates.
OpenCode 2 · MCP · AGENTS.md · Bash · Linux x86_64
AI Build
AI HackFest golden-hour fraud-evidence agent — turns messy digital evidence into verified facts, next actions, and human-approved handoff packs.
FastAPI · Hermes · SQLite · Pillow · Tesseract · ReportLab · Jinja
AI Build
Sectors Hackathon Planner–Executor–Critic agent for IDX broker-flow investigation — read-only narrative with tool allowlist, audit, and anti-advice guardrails.
FastAPI · Next.js · TypeScript · Python · Sectors API · Tailwind
Previous generation
Earlier examination platform with exam management, monitoring, and asynchronous grading. Superseded in active development by SIAB1.
Independent Project
Local-first LAN media server with seekable streaming, subtitle support, and QR device pairing.
Independent Project
Invite-only invoice manager with integer IDR money, staff and customer portals, and HMAC-signed PDF links.
Full-stack engineering, application security (HMAC / QR / audit), agent orchestration, and reliable deploy.
Web and mobile-backed applications from structured backend services to React, Next.js, and Flutter clients.
Go · NestJS · FastAPI · Next.js · Astro · React · TypeScript · Flutter · Python
Signed device flows, audit trails, and production attendance / assessment systems used in schools.
HMAC / QR · Argon2id · RLS · Audit logging · Docker · Nginx · PostgreSQL
Multi-role AI agents, tool allowlists, evidence-gated workflows, and VPS / compose deploy discipline.
Planner–Executor–Critic · MCP · OpenCode overlays · FastAPI agents · systemd / Nginx · Evidence gates
Every feature is described from concrete architecture, security controls, and code that can be opened.
Software is built with readable interfaces and explicit data-access boundaries.
Work is presented from repositories, not from invented metrics or testimonials.
Open for conversations on school-ops software, AI agents, and full-stack collaboration.
