Have you ever typed something into Claude Code and wondered how it actually works? It’s not too hard to find out, after all, Anthropic accidentally released the Claude Code codebase back in March (The Verge). But what exactly is going on under the hood? How does the architecture function? And how can you build your […]

I set out to build this app in my first semester as a simple replacement for the Excel spreadsheet I used for workout tracking. But in the process of making it, it became so much more. And if you want to check it out you can on gymetrics.at (yeah I’ve already bought a Domain …). […]

This blog article argues whether database seeding should make the application look as if ordinary users have already been using it, in contrast to showcasing edge cases and test suits. While seed scripts in reality can be used to accomplish both the argument is not that seed data can never support testing but instead that one development dataset should not be filled with every technical edge case.

1. Introduction Rev Match Market is a used car marketplace lead by the left right swiping mechanism for marking interest in used car postings and connecting buyers with sellers. This blog post describes the second phase of development that took place on this project. Initially a MVP was made in the 1st phase that already […]

Somewhere in the middle of this semester, after wiring up an encrypted database, a category-learning system, recurring expense logic, and local notifications, I realized I had no idea what all of that actually cost the user in the first few seconds after tapping the app icon. Every one of these features runs the moment the […]

When I added local database encryption to HomeBudget+ this semester, I made the decision mostly on principle: a personal finance app should protect its data if the phone is lost, so the SQLite database is encrypted with SQLCipher. What I hadn’t actually measured was what that decision costs in performance. This article is that measurement […]

Abstract Many mobile apps look simple until they must preserve an unfinished edit, work offline, survive a crash, and reconcile changes from two devices. Then “save and sync” becomes an architecture, and a promise to the user. An offline-first iOS app treats its local store as the immediate source of truth. User actions update it […]

Software projects are often described through architecture, data models, and technical milestones. Interface design tends to appear later in that story, as if it were simply the visible layer added once the important work is complete. During the development of this personal planning app, I experienced almost the opposite. The design process helped define how […]