Portfolio  ·  2026  ·  minjun.website

Minjun

I am my own universe.

I build what blocks me, bothers me, or could make my life run better. These four products are the proof.

See the Work About
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Works

Four products.
All of them live.

ASTHATE
↗
ASTHATE
asthate.com

The brand behind it all. Digital Asset Intelligence — CEX exchanges, self-custody wallets, DeFi positions, and staking rewards unified in one intelligence layer. Tracks what you actually hold.

The Brand Node.js Portfolio Tracking Subscription
Calendar Todo
↗
Calendar Todo
todo.minjun.website

Built for myself because I'm lazy and untidy — and nothing out there fixed that. Life Modeling, Journal, Planner, Calendar all in one space. Still use it every single day.

PWA Vanilla JS Service Worker Daily Driver
Astha Ledger
↗
Astha Ledger
ledger.asthate.com

Started with a question: how do I track all the money I'm moving? Separates deposits from yield, transfers from PnL. The honest numbers — not approximations. Subscription-based, Stripe-integrated.

Next.js PostgreSQL Stripe Asset Tracking
DCA Bot
↗
DCA Bot
dca.asthate.com

I kept losing money in crypto until I accepted the truth: DCA is the answer. So I built the bot. Set a strategy, remove the emotion, let it run. Currently live on real portfolios.

Automation Express.js Binance API May 2026 Live Trading

Journey

All of it built
in 2026.

January 2026
ASTHATE — The First Product

Crypto balances scattered everywhere — exchanges, wallets, DeFi, staking. No tool did what I needed. Built ASTHATE from scratch. First commit to daily use in weeks. Still shipping it every day.

March 2026
Calendar Todo — The Daily Driver

Too lazy, too untidy, and no existing app fixed it the way I wanted. Built my own — Life Modeling, Journal, Planner, Calendar in one place. Uses it every day since launch. 3,600+ lines of vanilla JS.

April 2026
Astha Ledger — First Commercial Product

The question was simple: how do I track everything I'm moving? Spun out the ledger from ASTHATE into a standalone paid product. Next.js + PostgreSQL + Stripe. Real users, real subscriptions.

May 2026
DCA Bot — The System

After years of losing money reacting to the market, DCA clicked as the answer. Built an automated bot on Binance API. Emotion out, system in. Running live on real capital.

May 2026 · Now
minjun.website — This

A place to record it all. Not a portfolio for anyone else — a mirror for myself. Four products, five months, one server, zero outside funding. The work continues.

About

Build. Use.
Remember.

The ideal I work toward: "Minjun, soon I am my own universe." Everything I am. Everything I build toward. I remove what blocks me, fix what bothers me, and build what makes my life run better. These four products came from exactly that.

This site isn't a portfolio to impress anyone. It's a record — for me. I need to remember who I am, and keep knowing it. These products are breadcrumbs: what I care about, where I'm headed, how I think. I want to look back and see the evidence clearly.

I don't want to be remembered as someone who used AI to make a good-looking website. I built tools that actually run — on real capital, real data, every day. Every product here solves a real problem I had. That distinction matters to me.

Vibe coding is one of the most important technologies in my life right now — it's genuinely exciting, and it's what made all of this possible in five months. Full-stack, solo, one VPS. No team, no funding. PostgreSQL, Redis, nginx, Stripe, systemd — all configured by hand, all running clean.

Node.js Next.js PostgreSQL SQLite Redis Stripe nginx Binance API Vultr VPS
4
Live Products
5mo
Jan → May 2026
1
VPS · Everything
0
Outside Funding

What's Next

The system
comes together.

Live
ASTHATE Intelligence

Portfolio tracking, wallet monitoring, DeFi positions, staking rewards. The data layer is live.

Live
Astha Ledger + DCA Execution

Ledger for tracking every dollar moving. DCA Bot for systematic execution. Both running on real capital.

Crypto-Based Asset Management

Intelligence + Ledger + Execution converging into one unified system. Full crypto asset management — from data to decision to action — under a single platform.