Keith Daniel Tan

A planner built for one trip: three weeks in Japan for two people. Each day gets an agenda that keeps itself in time order, with maps, photos, hotel reminders, and reservations or receipts one tap away.

It also runs a shared budget ledger (yen or dollars, exchange rate frozen at purchase, who owes whom), packing lists, phrase and emergency cards, leave-by push reminders, and an offline mode that queues edits until there is signal again.

Sign-in, data, realtime sync, and file storage run on Supabase with row level security, so only the people we invite can read it.

A Proxmox VE lab with network isolation and firewall controls, built for practicing defense, threat modeling, and continuous monitoring.

It runs Windows and Linux VMs for identity management, firewall testing, and monitoring drills, plus security tooling (Wireshark, Fail2Ban, WireGuard, Nginx, n8n) and a couple of game servers with authentication, isolation, and abuse detection.

Usagi is a Discord bot that answers with OpenAI or a locally hosted LLM. It runs around the clock in a hardened Proxmox container with strict credential isolation and usage controls.

It onboards servers and users automatically, tracks command usage in PostgreSQL, and uses rate limiting and anomaly detection to catch abuse and keep an audit trail.

The site you are on: a Next.js and TypeScript app styled after the old-school MMOs I grew up on, with an animated pixel-art landscape, XP drops for exploring, a 3D pet, and a chatbox.

All content lives in typed data files that are checked at build time, all pixel art is generated from code, and the site ships with a strict Content Security Policy. A Supabase guestbook and a sign-in editor for updating content are next.