Hey devs, After spending a lot of time writing TypeScript code (and sometimes feeling more confident than I probably should), I decided to create something to help myself and others properly measure their TypeScript knowledge. So I built TS Quiz — a free interactive quiz platform focused on modern TypeScript and React + TypeScript. 125 hand-crafted questions 5 difficulty levels (Basic → Advanced)
Building a Translation Pipeline for International Contract Bidding If your company bids on international contracts, you've probably dealt with the translation bottleneck. Technical proposals need precise translation, certified documents have strict formatting requirements, and procurement deadlines don't wait for anyone. After seeing how UK public procurement translation requirements can make or
Originally published on oseifert.ch TL;DR: Quizlet locked the learn mode and Knowt's import extension keeps missing cards. So i built quick-cards, a Chrome extension that grabs your Quizlet set and exports it to whatever you want (txt, csv, json, pdf, printable flashcards, Anki decks, or directly to Knowt). Chrome only for now, install instructions at quickcards.oseifert.ch/install. If you are a s
Why I'm building OneSlate Calendly is great if you're a freelancer with one calendar. It breaks if you're an executive with shared calendars from your The result: my Calendly booking page often shows zero available OneSlate solves this with a simple but specific filter: only calendar_kind is primary or owned count That single insight is the core differentiator. Everything else Solo founder,
Handling emails in modern applications often feels like choosing between two evils: either you pay a fortune to SaaS providers as your user base grows, or you fight with ancient SMTP servers that have terrible Developer Experience (DX). I wanted something with a modern, clean API (think Resend or Stripe), that could handle both transactional emails and marketing campaigns, but with the freedom to
Jack had finally stepped into the world of Docker. It felt like magic, but Jack was never one to just believe in "magic spells." He was curious. He wanted to look under the hood and see what actually made Docker so powerful. He had one big question: How could 50 different people live in the same "apartment building" (the Host OS) without accidentally reading each other's mail or eating each other'
Go is a compiled language — the code is converted into machine‑readable form before execution. From a beginner’s perspective, this means Go catches many errors during compilation, giving you cleaner, faster, and more predictable performance at runtime. Go is widely used for: API development CLI tools Microservices architecture Backend server. DEVOPS activity So it fits perfectly with the kind of
If you've tried building an AI agent in the last six months, you've hit the same wall: there are half a dozen frameworks, each with a different philosophy, a different API surface, and a different definition of what an "agent" even is. I spent a weekend writing the same simple agent — "read a GitHub issue, classify it as bug/feature/question, and post a comment" — in six different frameworks. This