Welcome

I'm a proud father and an ultrarunner, with an extensive background in catering & events. I'm enthusiastic about programming, AI, Linux, investing and art.

This site is hosted and developed by me, mostly by AI engineering nowdays.

Currently working as a full stack developer and coach at Sitowise and finishing a master's degree in AI & Data Engineering.

Kalle Tolonen mugshot

CONTACT & REFS

Recent Articles

Harry Potter moment

2026-09-07

Went shopping for bananas, shipped 3 new features on the 30 min walk.

Simple CI-workflow example for agentic publishing

2026-09-06

I've long done work with single dev workflows, where the CI-machine has been my laptop. That's perfectly fine for small software projects and stuff that does not require that much collaboration. Now I've hit a limit on that, because agents have become my team, so I needed a better solution.

Deftle makes a glorious comeback

2026-09-04

I made a Wordle clone back in the days of manual coding. It utilized some hand coded data manipulation and a guessing logic not dissimilar to Wordle. The twist was that you don't need to search for the definition of the word you've successfully guessed.

Deftle

Luentotulkki - MIT-licenced private university lecture transcriber for Finnish

2026-09-03

I made a convenience tool that did the video watching for me in my previous article: Ripped for your pleasure - this makes the pipeline a nice package for your convenience. Feel free to mod it and utilize it commercially, since it's a bunch of open source tools bunched together.

Ripped for your pleasure

2026-08-30

Ever find yourself needing a transcription from an obscure Finnish video, and need to do it without sending proprietory data to our MAG-7 overlords? You can now locally do that by ripping it from the source using ffmpeg and then doing the transcription locally. No fancy AI subscriptions needed.

Public Refs

kalletolonen.com reference photo

Maritime

Fullstack (Rust, Python, PostgreSQL, Svelte). GIS-data mining, analytics and visualizations. (2026)

Superlatiivit.com reference photo

Superlatiivit.com

Data mining & processing (2024)

paiste.fi reference photo

Paiste.fi

Front-End with Bootstrap (2021)

deftle reference photo

Deftle

Python Wordle clone with word definitions (2022)