Developer · Helsinki

Hey there 👋

I'm Teemu, a guy from Helsinki who loves tinkering with Python. My thing? Building small web applications.

Selected projects

Things I've been building and experimenting with.

Collection of Demos

Each one of these demos were created with Claude without user interaction

Holiday Shuffle

Slide into the holiday spirit with 2048 game, packed with unique power-ups! 🎅

Prismatica Nova

A little puzzle game inspired by Columns.

Tax Calculator for 🇫🇮 Finland

I was interested to know how big of a difference would it be in net pay if I switched to 4 day work week.

ChatKoala

AI Assistant for Telegram

Sun-kissed Garden

This demo won 3rd place in the Graffathon 2024 Advanced competition.

Create Calendar Invite

This Telegram bot helps to create calendar invitations based on natural text.

Year in Progress

Visualize the passing seconds, minutes, and hours in a unique and engaging way

WASM-4 Tree Simulation

A visual representation of trees, crafted with AssemblyScript for the WASM-4 fantasy console.

Anturi

Anturi is a cloud-based monitoring that helps you keep an eye on all your sensors. It works with RuuviTag sensors and can show you temperature, humidity, and pressure. Collected data is stored on a secure cloud platform where you can access it anywhere.

SQLSugar

Automatic migrations for SQLAlchemy. Very experimental. This library is for you if you want to use a real database without spending time generating migrations.

Instantvectors

After doing portraits for a while, I was wondering if I could find a nice use case for Stable Diffusion generated art. I tried out generating corporate-style illustrations.

Portraits

I downloaded Stable Diffusion and found a nice prompt for creating AI portraits. After some tweaking, I created a website around it.

Euribor 12

I was planning on buying an apartment but Euribor rates went quickly out of control. This small website keeps track of Euribor 12.

Pytest-sugar

A small plugin for pytest that has grown a large following on Github.

Latest notes

Practical write-ups on code, tools, and small internet projects.

Letting Claude make art with code

Posted 1 year ago

I’ve put together a massive gallery featuring 200 awesome visual demos created entirely with Claude. These pieces were all generated using scripts—no human assistance involved (except for some themes like city names). Just click anywhere to dive into the next one. Each demo showcases its own unique animations, patterns, and artistic flair. Some of my […]

Make ls pretty with exa

Posted 2 years ago

I’m a big fan of exa. It turns your boring directory listings into this: Installation You can find the package in your favourite package manager. Here are the two most common: You also need special fonts for the icons. You can get one of the Nerd Fonts. I’m using Meslo Nerd Font. Setting exa as […]

Comparing model performance: GPT-3.5 Turbo vs GPT-4o mini

Posted 2 years ago

My Telegram calendar bot converts natural language inputs into calendar invites. It currently uses GPT-3.5 Turbo and I wanted to see how the recently launched GPT-4o mini compares. Not only is the new model 60% cheaper, but it should also be more intelligent. Here’s a breakdown of the journey and the notable differences between these […]

Why your project should have a Justfile

Posted 2 years ago

If you’re like me, you’ve got a folder full of side projects in various states of completion. Some you worked on last week, others haven’t been touched in months. And every time you come back to one, there’s always that moment of “Wait, how do I run this again?” That’s where Justfiles come in. They’re […]

How to Find and Invest in the Lowest-Cost Index Funds on Nordnet Finland

Posted 2 years ago

Invest in low-cost index funds. That’s the financial equivalent of “eat your vegetables” – boring, but undeniably good for you. But finding those truly-cost options can be tricky here in Finland where you don’t have access to Vanguard index funds. Why Nordnet? Nordnet is not the cheapest option there. It’s quite pricey. But it has […]

Get colored logs for Python

Posted 3 years ago

Here’s a quick guide on how to get nicely coloured logs when working with Python apps locally.

Automatic deployments from Github to Caprover

Posted 4 years ago

An easy way to deploy your GitHub repository to Caprover every time your main branch is updated.

How to disable the public list of files in Minio

Posted 4 years ago

Minio is an open-source Amazon S3 clone that you can install on your server. When you set a bucket access policy as public, you are also exposing the list of files to the public. This is often not what you want. Luckily, it’s quite easy to fix. First, open “Access policy” and set it as […]