
Latest · 2026
Verkkoon tunkeutuminen ja tiedustelu
Attack the network between machines. Capture radio transmissions. Copy key cards. Attack WiFi.
Maybe even some software radio...
Learn Free software with me

Latest · 2026
Attack the network between machines. Capture radio transmissions. Copy key cards. Attack WiFi.
Maybe even some software radio...

Siv turns folders of Markdown into a website. This manual goes from an empty folder to a published site, one step at a time.
You'll also learn the handy extras: charts from a few lines of text, checks in your editor while you write, and moving a page without breaking its old address.
All of this is also available in siv itself, without a network connection: 'siv help'.

Siv is a static site generator. Author (you) writes MarkDown pages. Siv builds a static HTML website. Templates add navigation and your style.
Single static binary, written in Rust. Starter site built-in, valid, Lighthouse 100/100, prefetch, search. Help, good error messages, tutorial, file explainer built-in. Images automatically from markdown to avif srcset + lightbox. Syntax highlight with autodetection. Fast, with rsync-friendly true dates. Free software, GPL 3 or later.

Hide slide overflow.
Change slide layout from toolbar, don't waste 10% of screen for sidebar.
An extension for LibreOffice Impress.
Download tbar-impress.oxt. LibreOffice Impress: Tools: Extensions: Add.

0x54ask is a todo.txt manager. It supports context (@W at work, @H at home...) and tags (+linux, +bank, +tero).
0x54ask forks SimpleTask Cloudless. It provides passive perks: data safety, automerge, filesystem protection - and it never connects Internet, at all.
Update: Install on F-Droid!

Find vulnerabilities in your app - before criminals do.
This is "Application hacking" in Finnish: "Sovellusten hakkerointi ja haavoittuvuudet". In nerd speak, it's reverse engineering. You'll learn Ghidra, gdb and similar.
Co-taught with Lari Iso-Anttila. Sold out, queue started.
Visitor: Otto Ebeling hacked crypto and got big money - legally and ethically. (Maybe OSINT his Ltd 2023)
Update: Extra group started!

Learn to hack computers to protect your own. In the course, you will break into target computers.
Excellent feedback, reached 5.0 out of 5.
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Update: Visitors confirmed: Buuri (pentesting banks), Särökaari (attacking identity?), joohoi (creator of ffuf).
Earlier years: All pages · Old site 1998-2019