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A focused stream of tech articles on engineering systems, product building, AI tooling, and practical lessons from shipping software.

Local SD-JWT and OpenID4VP verification for EUDI Wallet
TECH

Local SD-JWT and OpenID4VP verification for EUDI Wallet

There are already decent SD-JWT decoders. Paste a token, get a JSON tree. That solves half the problem. When I started wiring EU Digital Identity presentations for EUDI Γ— Solana, the questions I actua

Jul 31, 2026
3 min read
privacyWeb Developmentsd-jwt
How I turned behavioral science into testable Kotlin
TECH

How I turned behavioral science into testable Kotlin

This is part 2 of a two-part series on building Habit Arc. Part 1 was about why I built it around the science of automaticity instead of streaks. This part is about the architecture β€” and the lessons

Jul 8, 2026
9 min read
AndroidKotlinJetpack Compose
Why I stopped counting streaks and started measuring automaticity
TECH

Why I stopped counting streaks and started measuring automaticity

This is part 1 of a two-part series on building Habit Arc, a local-first Android habit tracker. This part is about why I built it and the science it's built on. Part 2 is about the architecture. I've

Jul 4, 2026
8 min read
Productivityhabitsbuildinpublic
Building a PostgreSQL Browser for Obsidian with Electron
TECH

Building a PostgreSQL Browser for Obsidian with Electron

I was in the middle of work, had Obsidian open already, and just needed to inspect a local PostgreSQL database. Normally that means switching apps, opening pgAdmin, logging in again, and clicking thro

Jul 1, 2026
7 min read
PostgreSQLobsidianElectron
Streamline Your x402 API Monitoring with x402station: A Comprehensive Guide
TECH

Streamline Your x402 API Monitoring with x402station: A Comprehensive Guide

Hey folks, I’m excited to share: x402station.com β€” a platform designed for anyone working with x402-powered services. It’s all about giving you the tools to discover, monitor, and track the performance of x402 APIs, all in one place. My hope is that ...

Oct 12, 2025
2 min read
coinbasetechnologyDeveloper
Validating Next-Auth JWE Tokens in NestJS: A Step-by-Step Guide
TECH

Validating Next-Auth JWE Tokens in NestJS: A Step-by-Step Guide

Hey there! πŸ‘‹ Today I'm diving into a topic that had me puzzled for longer than I'd like to admit: validating Next-Auth JWE tokens in a NestJS backend. If you've ever tried to build a full-stack application with Next.js on the frontend and NestJS on ...

May 31, 2025
6 min read
Next.jsnextauth.jsnestjs
From the Warehouse Floor to Web3: My Experience Entering Software Development
TECH

From the Warehouse Floor to Web3: My Experience Entering Software Development

Hey there! πŸ‘‹ Welcome to my little corner of the internet. I'm Yannick, and this is where I'll be sharing my thoughts, experiences, and discoveries as I navigate the wild world of software engineering and blockchain development. But first, let me ask ...

May 25, 2025
11 min read
career transitionsoftware developmentWeb3