Software Studio & Expat Knowledge Base

Focused Software Tools &
In-Depth Country Guides

Jeong Inc. builds practical developer utilities and publishes fact-checked guides on global relocation, tax residency, visas, and mobile connectivity for founders and expats.

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🔒 100% Local Execution (Runs in local sandbox)
📜 Fact-Checked Research (Official government sources)
⚡ Zero Telemetry (No tracking servers)

Software Tools

Focused utilities built for high reliability, local execution, and privacy.

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Relocation Destination Finder

Interactive · 2026
Multi-Criteria Decision Engine

Discover where you should move. Match your monthly living budget, vibe (city vs. beach vs. countryside), visa ease, and tax strategy across 12 countries with instant plain-English summaries.

12 Countries Mapped Dynamic Scoring Zero Jargon Action Steps
Launch Destination Matcher →
Antigravity Status Meter Icon

Antigravity Status Meter

macOS · v2.0
Native Swift 6.0 Menu Bar

Lightweight macOS menu bar utility that streams real-time model quota balances, rolling 5-hour burst limits, and reset countdowns directly from Google Antigravity.

macOS 13+ (Universal) Local CDP WebSocket Zero Cloud Relay <15MB RAM
View Status Meter → GitHub
D³ Drive Directory Duplicator Icon

D³ Directory Duplicator

Chrome Ext · v1.2
Google Drive Browser Extension

Secure browser extension that clones entire Google Drive folder hierarchies with 1-click execution. Operates 100% inside your local browser sandbox.

Google Drive API Browser Sandbox Zero Server Storage OAuth 2.0
Explore D³ Duplicator →

Guides & Country Briefings

Practical field guides on relocation, tax residency, business incorporation, and cellular setup across Asia.

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Zero-Capital Startup Japan 2-Yr Visa Runway Arbitrage

Zero-Capital Bootstrapper Guide

How solo founders relocate to low-cost hubs, leverage Japan's 2-Year Startup Visa without upfront capital, and cost breakdowns for Tokyo vs Kansai vs Okinawa.

Read Bootstrapper Guide →
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Inpatriate Medical OHIP/MSP Loss k Medevac

Inpatriate vs. Expat Insurance

Technical analysis of cross-border health policies, why travel subscriptions fail long-term expats, and provincial health plan cancellation.

Read Insurance Guide →
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Google Drive API Zero Download Apps Script Fix

Copy Google Drive Folders

How to duplicate full Google Drive folder trees with permissions without downloading files or hitting Apps Script 6-minute limits.

Read Drive Guide →
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5-Year DTV 500k THB Proof Order P. 161/2566

Thailand Destination Visa (DTV)

Statutory breakdown of the 5-Year DTV published in the Royal Gazette, financial proof verification, and Thai Revenue Department tax rules.

Read DTV Guide →
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Canadian Bank 2FA VoWiFi Calling Asian Local eSIM

Expat Phone, eSIM & 2FA Guide

How to keep your Canadian 2FA phone numbers active overseas without daily roaming fees, set up Wi-Fi calling, avoid VoIP traps, and configure dual SIMs.

Open Phone & 2FA Guide →
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10 Asian Countries Tax & Visas Official Acts

Global Living & Visa Hub

Comprehensive relocation, corporate formation, and tax guides for Vietnam, Malaysia, Japan, South Korea, Taiwan, Singapore, Thailand, and Bali.

Explore All Guides →
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DT3 Incorporation DICA Capital Account 3-Year TRC

Vietnam DT3 Case Study

First-person field report detailing 100% Foreign-Owned Enterprise (FOE) setup in Vietnam, document legalization, capital wire funding, and 3-Year TRC cards.

Read DT3 Case Study →
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OHIP/MSP Rules IPMI vs Travel Medevac Coverage

Expat Health & Insurance Guide

Understand Canadian provincial health plan cutoffs, travel insurance exclusions (SafetyWing/Genki), international health insurance (IPMI), and medical evacuation.

Open Insurance Guide →
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Business Manager 5M JPY Capital Remittance Taxation

Japan Relocation & Tax Guide

Analysis of Japan Business Manager Visa requirements, non-permanent resident foreign income remittance tax rules, and company setup in Tokyo/Kyoto.

Read Japan Guide →
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DE Rantau Nomad FSI Tax Rules MM2H Options

Malaysia Relocation & Tax Guide

Guide to the DE Rantau Digital Nomad Pass, Foreign Sourced Income (FSI) tax exemptions, and MM2H long-term visa tiers.

Read Malaysia Guide →
Kevin Jaewoong Jeong

Founded by Kevin Jaewoong Jeong

Tech enthusiast and traveling entrepreneur dedicated to building useful tools, experimenting with new technologies, and sharing practical expat guides.

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