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# finance

Personal finance, investing, and financial literacy.

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[05] When to Pull the Trigger on FIRE — Monte Carlo Says You're Already Free

[05] When to Pull the Trigger on FIRE — Monte Carlo Says You're Already Free

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5 min read
[02] Stress Testing Your Life — What Happens at -30%, -50%, -60%?

[02] Stress Testing Your Life — What Happens at -30%, -50%, -60%?

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5 min read
[04] The 90/10 Portfolio — Dividend Core + Growth Satellite with a Live Simulator

[04] The 90/10 Portfolio — Dividend Core + Growth Satellite with a Live Simulator

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3 min read
[03] Designing a Personal Commitment Line — Two Loans, One Defense System

[03] Designing a Personal Commitment Line — Two Loans, One Defense System

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5 min read
Small Loan Psychology: Why Devs Misjudge Borrowing Costs

Small Loan Psychology: Why Devs Misjudge Borrowing Costs

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6 min read
I built two Apify actors that scrape U.S. Congress trading data — directly from government sources, no QuiverQuant

I built two Apify actors that scrape U.S. Congress trading data — directly from government sources, no QuiverQuant

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7 min read
I Backtested 96 SPY Put Credit Spread Strategies - Here's the Bug Log

I Backtested 96 SPY Put Credit Spread Strategies - Here's the Bug Log

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6 min read
SPXW 0DTE: What Every Developer Building Options Tools Needs to Know

SPXW 0DTE: What Every Developer Building Options Tools Needs to Know

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5 min read
I finally understood compound interest by writing 8 lines of JavaScript

I finally understood compound interest by writing 8 lines of JavaScript

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3 min read
🛠️ merge_payment_ledger: Merge Gumroad, Stripe, and PayPal CSVs into a unified ledger for easy

🛠️ merge_payment_ledger: Merge Gumroad, Stripe, and PayPal CSVs into a unified ledger for easy

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3 min read
Best Free Stock Market APIs and Data Tools in 2026: A Developer's Honest Comparison

Best Free Stock Market APIs and Data Tools in 2026: A Developer's Honest Comparison

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10 min read
Reading market crises before they happen: the Macro & Geopolitical Risk Index

Reading market crises before they happen: the Macro & Geopolitical Risk Index

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4 min read
ConstruĂ­ uma biblioteca Python que unifica APIs de mercado financeiro brasileiro

ConstruĂ­ uma biblioteca Python que unifica APIs de mercado financeiro brasileiro

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3 min read
Black-Scholes on Polymarket: Finding Mispriced Binary Events with Python

Black-Scholes on Polymarket: Finding Mispriced Binary Events with Python

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10 min read
The Subscription Audit That Saved Me $480 a Year

The Subscription Audit That Saved Me $480 a Year

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6 min read
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