Hey, I'm Petr

I am an software engineer with a focus on full-stack TypeScript web app development. I am working on StockStory and I teach students how to create web apps at Czech Technical University.

In my free time, I like to contribute to open-source on GitHub, write articles on this blog, rant on Twitter, do rock climbing, or read about economics and investing.

Links

• Email
• Twitter
• GitHub
• LinkedIn
• Instagram
• RSS

Articles

• 2024
  • Mar 04 / T / CSS box-sizing reset is probably not worth it
• 2023
  • Sep 23 / T / Using Lottie animation format on the web
  • Sep 01 / T / Problems with Tailwind CSS
  • Aug 31 / T / Text and design systems
  • Jun 07 / T / How to make emojis consistent in web apps
  • May 18 / T / PostgreSQL and transaction safe SELECT
  • Apr 22 / T / The best ORM is no ORM
• 2022
  • Dec 13 / T / TypeScript asserts keyword and type narrowing in tests
  • Jul 06 / T / The easiest way to enforce architecture patterns
  • Jul 03 / T / Introducing eslint-config-start, slightly opinionated Eslint config that should be a good start for any project
  • Jun 24 / T / Periodically check broken URLs
  • Apr 19 / T / 50/50 SP500 & Gold portfolio
  • Apr 10 / T / #BadUXChallenge (regularly updated thread)
  • Apr 09 / T / Tracking workarounds in your codebase
  • Apr 04 / T / Bitcoin and Ethereum code complexity analysis
  • Feb 13 / T / Is TypeScript really 5x less energy efficient compared to JavaScript?
• 2021
  • Dec 25 / T / Brief look at the new Roc programming language
  • Oct 13 / T / Absolute path imports in JavaScript without custom tooling
  • Oct 11 / A / URL parts
  • Oct 06 / T / How to deal with vague promises
  • Jun 20 / T / Why I love poker and what it can teach you in life
  • May 26 / T / Deno vs Node
  • May 12 / T / Real estate prices in gold
  • May 09 / T / Walking treadmill with standing desk
  • Apr 25 / T / Coming back to Windows as a web developer, 6 months later
  • Mar 25 / T / The most interesting thing about Bitcoin energy consumption
• 2020
  • Dec 27 / T / Runtime TypeScript shape validation
  • Oct 22 / T / Windows image editing programs rant
  • Oct 10 / T / Coming back to Windows as a web developer
  • Oct 04 / T / How to get better at rock climbing
  • Sep 21 / A / Docker
  • Sep 02 / T / How learning economics changed my world view
  • Jun 22 / A / Restart stuck PostgreSQL on macOS
  • May 26 / T / Always demand a deadline
• 2019
  • Nov 18 / T / Coming back to Gulp
  • Sep 03 / A / Union types
  • Aug 25 / A / Hello extension
  • Aug 08 / A / Squash commits
  • Jul 13 / T / On 10x developers
  • May 13 / A / How to switch Node version on macOS
• 2017
  • Dec 17 / A / Vim basics
  • Aug 24 / A / Common naming mistakes
  • Jul 20 / A / IIFE
  • Jul 17 / A / Random numbers in JavaScript
  • May 21 / A / Debian packages and front-end apps at Seznam.cz
  • Apr 28 / A / Shebang