Retiring on $5M: The FatFIRE Blueprint
The Sterlings retire on $5M with a $200k budget. See how Person A suffers in the 2022 crash while Person B uses Shiller CAPE to reach $6.1M.
● Builder & Optimizer
Building tools, writing technical guides & exploring systems.
Hi, I'm Antoine. I engineer interactive financial simulation tools, document machine learning workflows on Apple Silicon, and share hands-on developer notes.
Flagship Project
Interactive Simulation
Web Application
Financial Independence (FI) Portal
A comprehensive, data-driven personal finance portal. Tracks net worth, expenses, and cash flows while running Monte Carlo and historical Shiller CAPE early retirement simulations. Synchronizes directly with personal Google Sheets.
Launch FI Portal →Retirement & Net Worth Engine
Historical market simulations & cash flows
Lab & Mini Projects
Standalone interactive experimentsIs This OK?
An interactive decision-making and feedback web game.
TestDome Practice
Technical test dome drills and algorithm sandbox.
AI Sandbox
Prototypes and experiments with browser-based AI models.
Recent Writings & Tutorials
View all articles →Retiring on $2.5M: David’s ChubbyFIRE Stress-Test
David retires on $2.5M with a $100k budget. See how Person A panic-sells in 2008 while Person B uses Shiller CAPE guardrails to reach $6.2M.
Retiring on $1.25M: The 4% Rule vs. Shiller CAPE A/B Test
Follow Marcus & Priya in an A/B retirement test with $1.25M: see how Person A (fixed 4%) fails while Person B (Shiller CAPE) survives the 2000 crash.
Retiring on $600k: Elena’s LeanFIRE Stress-Test
Elena retires on $600k with a $24k budget. See how Person A (4% rule) fails in 1970s stagflation while Person B (Shiller CAPE) protects her lifestyle.
Dynamic Safe Withdrawal Rates: Shiller CAPE vs. the 4% Rule
Why the rigid 4% safe withdrawal rule risks early retirement failure during high-valuation regimes, and how Shiller CAPE dynamic withdrawals protect your portfolio.
Setting Up TheGosset FI Portal: Complete Step-by-Step Guide
Step-by-step walkthrough on accessing TheGosset FI Portal, connecting your Google Account and Google Sheet, initial setup, and mastering core features.
How to Install LocalWP on Mac M3
Step-by-step guide to installing and configuring LocalWP on macOS Apple Silicon (M1/M2/M3) for fast local WordPress development.
How To Install CVAT on Mac
Learn how to install and configure CVAT locally on macOS using Docker. Step-by-step guide to setting up computer vision annotation on Apple Silicon.
Rewrite your git history
Master git history cleanup with interactive rebase. Step-by-step tutorial on squashing commits, editing messages, and organizing clean repository history.