thatis.fun — personal

Building things
is the fun

Sales manager by day. Amateur infrastructure engineer by night.
Running production services out of a Raspberry Pi in Dubai — because that is, genuinely, fun.

things i find fun
🍓
A Pi serving the world that is fun
A Raspberry Pi 5 sitting somewhere in Dubai, tunneled through Cloudflare, running a CRM, an eSIM shop, a five-year diary, and an AI agent — all at the same time. Zero DevOps training.
🌐
Living between networks that is fun
UAE → China. WeChat → WhatsApp. Mandarin → Arabic → English. Building the glue yourself — eSIM to cross borders, a personal proxy node when the internet disagrees with you.
s1mplesim.com ulinkme.ltd
🧠
AI that actually remembers you that is fun
Not a chatbot. A persistent agent that knows your projects, writes your memos, sets reminders to WeChat, and picks up mid-sentence across reboots. Continuity as a feature.
📓
Five years in one view that is fun
A diary app where today's entry sits next to the same day, one year ago, two years ago — under a real-time 3D star sky with lunar phase, solar terms, and the exact constellations overhead right now.
🛠️
Building your own tools that is fun
CRM, quote system, staff diary, eSIM storefront — all self-built, zero prior code experience. Small steps, real results. No SaaS subscription. No vendor lock-in.
s1mplesim.com
Raspberry Pi 5 FastAPI Cloudflare Tunnels Vue 3 SQLite Xray / Mihomo OpenClaw Claude