project-insanity.org

postmarketOS development status 2021

In the last few months I was looking into adding support for some older Android phones to postmarketOS. Porting an existing downstream kernel to a real Linux operating system for mobile systems wasn’t that hard following the easy porting guide from the pmOS wiki. Here’s a roundup on what I have achieved so far ;) […]

Hardware

Mobile timber-framed cork sauna

I built a small, lightweight sauna that sits on a trailer ready to be taken to a nearby lake. Its half-timbered construction is time consuming to build but offers appealing aesthetics. Following the traditional path further led me to employ natural materials all the way. Baked cork with its low weight, being weatherproof and open […]

Software

Using Virtio-FS directory sharing together with NixOps libvirtd backend

Virtio-FS is the newest technique to share directories of the host system to a virtualized guest machine managed by libvirt. This example will show you how to use it in NixOps to automatically deploy and configure guests with access to shared directories. I’m using NixOps to configure and setup web services in virtual machines. One […]

Software

Blender Addon: Node Preview

Ever since Blender made the switch to the Cycles renderer back in 2011, its shader nodes have lacked an interactive preview for each node. I spent the first months of 2021 writing an addon that adds this functionality: Node Preview, which is available on the Blender Market. It utilizes a Blender instance started in a […]

Hardware

Low budget car key replication and transponder workaround

I lost my backup key for my Mitsubishi car and wanted to replace it. To get a cheap solution I had to remove the transponder from the key and go for a walk to the city. To get a spare key from the manufacturer, you’d have to pay 140 € – and that is not […]

Software

Review: Mobilitäts-App RegioMove des Karslruher Verkehrverbundes

In kurzen Abständen bringen immer mehr Anbieter*innen und Projekte Apps auf den Markt, die Innovationen auf dem Mobilitätsektor versprechen. Ein neues Angebot des Karlsruher Verkehrsverbund (KVV) mit dem Namen RegioMove möchte Car- und Bike-Sharing mit dem traditionellen Nahverkehr verknüpfen. Da mich neue Mobilitätsanwendungen für unterwegs zurzeit sehr interessieren, möchte ich hier einen kleinen Erfahrungsbericht mit […]

Artwork

Repot Your Cactus – How To

My brother has a nice Cactea (female) but her home is to small. We have a nice big pot for it, but the question is of course: how here to get decent potting soil? A friend told us that we should simply container a molehill in the city park. So we went there, but of […]

Artwork

Moving Heads steuern mit µDMX und QLC+ unter Linux

2014 gab es die ersten Versuche, beim Musikfest meines Musikverein Schwieberdingen von der tollen Lichttechnik über der Bühne 2 Moving Heads mit ein Computer zu steuern (qlcplus und µDMX Adapter), anstatt mit einen Light-Jockey-Mischpult (16ch). Das machte es erstmal nicht weniger aufwendig bei der Bedienung, da wir uns einarbeiten und zurechtfinden mussten mit QLCplus und […]