Jan Sydänviita (né Tuomi)

Brief timeline: 1996 – Experimental IPv6 support lands in Linux kernel 2012 – World IPv6 Launch Day 2017 – IPv6 is ratified an official Internet Standard 2026 – jan.systems gets IPv6 support (major event) This website and all other services running under…

The Atomium, an educational and cultural landmark in Brussels.

Got married!

Check out my new, self-hosted Git server: forge.jan.systems It is now my primary Git remote.

Abstract: Linux software distributed as OCI container images can be extracted into a FreeBSD jail with Linux compatibility enabled.

Planning the wedding, reworking my wardrobe.

This is the fifth episode in a series where I set up a FreeBSD home server, explaining all the steps, problems and solutions along the way.

This is the fourth episode in a series where I set up a FreeBSD home server, explaining all the steps, problems and solutions along the way.

This is the third episode in a series where I set up a FreeBSD home server, explaining all the steps, problems and solutions along the way.

Fall has gone by, fast.

EuroBSDCon is one of the events organized under the BSD community umbrella, focusing on all things related to and descending from 4.4 Berkeley Software Distribution.

Late summer and early autumn have been a time of ups and downs.

“My first impulse, when presented with any spanking-new piece of computer hardware, is to imagine how it will look in ten years’ time, gathering dust under a card table in a thrift shop.” ― William Gibson, Distrust That Particular Flavor This is the second

This is the first post in a blog series chronicling my progress with designing and setting up a new, physical FreeBSD home server.

A torii gate in the Kenroku-en garden Here's three seasons of updates in one package.

I have a website authoring system that involves Obsidian sync and a hand-crafted static site generator (SSG) written in Scheme that: syncs Markdown files to my VPS compiles Markdown source files into HTML pages using pandoc parses and processes Markdown f…

The number of started projects and/or empty checkboxes in my to do list is getting out of hand.

This is a quick, neat thing I happened to find on accident.

Today I learned about two recent-ish Git features.

Home Dog dug up the yard and the new grass.

Home Yard work: some small landscaping, changed the topsoil to something less dry, and planted grass and flowers.

A graphic from the first pages of the Miru zine with the text ”Time to kill a god” overlaid on an imposing four-eyed figure.

Dealing with dotfiles can be a nuisance.

To open a tunneled connection to an AWS managed database, such as RDS or DocumentDB, the commonly recommended way is to use a bastion host and aws ssm start-session.

When I learned my first programming language I learned about functions.

Update 2024-12-22: The functionality described here is available natively in modern versions of Git, see more recent note Path-conditional config and SSH key signing in git.

ATK16 is a learning project I've been working on for some time.

Inches of snow are falling on the yard, covering any new green growths.

Lightning talk I recently presented a lightning talk about the IndieWeb and personal websites to my colleagues at the office.

QCon London 2024 was a multidisciplinary software engineering conference in the London QEII Centre in April 2024.

This note relates to the project Cookbook.

I like the idea of cassettes.

Every respectable tech blog must contain two posts: ”This site now has RSS” ”This is how this site is deployed” Other content is optional.

I don't like Doodle.

As part of the site build process, I use pandoc-rss to automatically build an RSS feed of my posts.

Currently Working on this site Doing small renovations and fixes to the house Learning Chicken Scheme and using it to build desmoctl and this website Reading Category Theory for Programmers by Bartosz Milewski Recently Purchased a 100 m2 terraced house Up…