From reducing session admin to helping customers buy online. See the work I delivered, who it helps, and what changed.
Web App · Help food businesses get online
Help cafes, restaurants, and local food brands create a website, display their menu, and receive inquiries through WhatsApp.
Outcome
Business owners can describe their business, edit a prepared website, and publish a shareable link without learning to code.
Web App · Managed hosting for AI agents and workflows
Deploy Hermes Agent and n8n from a browser, choose an available region, and manage hosting through one workspace with IDR wallet billing.
Outcome
Users can launch an AI agent or automation service without terminal setup, fund hosting through QRIS, and manage service status and renewals from a dashboard.
Web App · Help learners get unstuck
Built a coding coach that offers small hints when learners struggle, rather than giving away the answer.
Outcome
Delivered an early working product that provides staged guidance and lets the team review when and why help appeared.
Web App · A clearer online buying experience
A digital-product shop that brings browsing, payment, order updates, and after-sales support into one place.
Outcome
Customers can see prices and stock, pay by QRIS, and return to their account for receipts, delivery information, and order-related help.
Web App · Repurpose video with less manual editing
Turn long YouTube videos into captioned clips with AI-assisted moment selection, visual templates, and face-aware framing. Visit https://aiclipper.video/.
Outcome
A complete preparation and rendering workflow produces downloadable MP4 clips and SRT captions, with repeatable channel imports.
Web App · AI character portraits and short videos
Transform an uploaded portrait into an anime-inspired character, then create a short cinematic video from the result. Visit https://aotavatar.com.
Outcome
A working generation workflow combines character styles, background jobs, a personal media vault, credit accounting, and API access.
Web App · Clearer, private visa preparation
A privacy-first workspace helping Indonesian travelers prepare truthful U.S. B1/B2 visa answers, check consistency, and practice interviews.
Outcome
An end-to-end bilingual preparation journey combines guided questions, autosaved drafts, review tools, and personalized mock interviews.
Web App · Simpler website publishing
A portfolio with case studies maintained as local content alongside the application.
Outcome
Project content can be reviewed in Git and published with the site, without runtime CMS calls.
Web App · Help people find relevant mentors
Help mentees search by their career goals, even when a mentor describes their experience using different words.
Outcome
Built a search prototype that considers meaning as well as exact keywords and keeps an alternative search path available.
Web App · AI chess arena
A live chess arena for comparing model strategy, tool use, latency, recovery behavior, and tournament performance.
Outcome
Runs model-versus-model duels, knockout and round-robin tournaments, PGN export, telemetry inspection, and dynamic Elo ratings.
OS Library · AI infrastructure gem
Mount one OpenAI-compatible endpoint inside Rails with ordered model fallbacks, encrypted provider keys, streaming, and built-in usage tracking.
Outcome
Provides chat completions, embeddings, model routes, and usage tracking inside the host Rails application.
OS Library · Email testing gem
Preview customer emails and attachments locally inside Rails without a separate email-testing service.
Outcome
Captures persistent MIME messages with searchable previews, attachment downloads, and sandboxed HTML rendering.
API / Gateway · Payment API and administration
Connect QRIS payment requests, payment matching, and order updates. Unofficial and not affiliated with or endorsed by GoPay.
Outcome
Combines dynamic QRIS payments, transaction matching, signed webhooks, and a separate administration service.
OS Library · Framework-independent crypto payment library
A standalone Ruby library for exact USDT payment amounts and deposit retrieval, without Rails or database dependencies.
Outcome
Supports six-decimal payment amounts, EVM transfer verification, and signed Binance and Bybit deposit requests while leaving settlement under host application control.