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Building a Zero-API-Key Real-Time Market Data Proxy

Building a Zero-API-Key Real-Time Market Data Proxy

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4 min read
I built an insider-conviction screener for my watchlist in ~40 lines of Python (SEC Form 4)

I built an insider-conviction screener for my watchlist in ~40 lines of Python (SEC Form 4)

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3 min read
Building Against Real APIs Is Nothing Like Reading the Docs

Building Against Real APIs Is Nothing Like Reading the Docs

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2 min read
LINE MINI App Verification Review: A Pre-Submission Checklist That Prevents Rework

LINE MINI App Verification Review: A Pre-Submission Checklist That Prevents Rework

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7 min read
Stop Faking Your Test Data: Why `Faker.js` Breaks the Moment You Have Foreign Keys

Stop Faking Your Test Data: Why `Faker.js` Breaks the Moment You Have Foreign Keys

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5 min read
A PDF a Human Reads and a Machine Parses at the Same Time: How PDF4me Builds ZUGFeRD E-Invoices

A PDF a Human Reads and a Machine Parses at the Same Time: How PDF4me Builds ZUGFeRD E-Invoices

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7 min read
Plaid Alternatives in Europe: A PSD2 Developer's Comparison for 2026

Plaid Alternatives in Europe: A PSD2 Developer's Comparison for 2026

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6 min read
An Error Inside HTTP 200 Poisoned My Cache: Why response.ok Is Not a Success Check

An Error Inside HTTP 200 Poisoned My Cache: Why response.ok Is Not a Success Check

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8 min read
Shopify Integration for Customer Support: Real-World Patterns That Actually Work

Shopify Integration for Customer Support: Real-World Patterns That Actually Work

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2 min read
One API key across OpenAI, Claude and Gemini: how to compare token cost per model

One API key across OpenAI, Claude and Gemini: how to compare token cost per model

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7 min read
Nine things I measured about the HubSpot API that the docs don't tell you

Nine things I measured about the HubSpot API that the docs don't tell you

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6 min read
One API Key Across OpenAI, Claude and Gemini: Chatbot Fallback Options for SaaS Apps

One API Key Across OpenAI, Claude and Gemini: Chatbot Fallback Options for SaaS Apps

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7 min read
The most dangerous API response is HTTP 200 with an empty body

The most dangerous API response is HTTP 200 with an empty body

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4 min read
3 API changes to audit before your next deploy: Supabase, HubSpot, and Shopify

3 API changes to audit before your next deploy: Supabase, HubSpot, and Shopify

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3 min read
My Publish Script's except HTTPError Looked Complete. It Doesn't Catch the One Failure Its Own Timeout Guarantees.

My Publish Script's except HTTPError Looked Complete. It Doesn't Catch the One Failure Its Own Timeout Guarantees.

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4 min read
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