Lethio

This is my corner of the internet. I make software, mostly out of spite. Every time I download an app that asks for my location, shows me an ad before I can count a stitch, or tries to upsell me on a subscription to use a feature that already exists on my device, I get a little more motivated. It's a sustainable energy source, honestly.


Some of what I build is serious. Kofte is a proper knitting counter for people who are tired of apps that drain their battery harder than they drain their wallet. Some of it is just for fun. Neon Depths is a cyberpunk roguelike I made with agentic AI in five days because I wanted to see if I could pull off a 7DRL and it turns out the answer was "yes, and it was a blast."


Built by Terje Rutgersen. Based in southern Spain. 30 years of making things work across platforms nobody asked him to support.


Projects


Principles

Offline first

Your data lives on your device. I couldn't steal it even if I wanted to. I don't want to.

No subscriptions

Pay once. Own it. I'm not going to hold your knitting counter hostage for €4.99/month.

No tracking

No analytics. No telemetry. I genuinely do not care what you click on.

Small & sharp

One thing, done properly. The app economy has enough bloatware already.


Systems Guides

This whole thing runs on a Hetzner Cloud CPX11 (Debian 12, 2 vCPUs, 2 GB RAM) for about €6/month. The guides above are mostly notes to my future self about how it was set up.