Jens Getreu's blog

keyboard-US.svg

2025-08-28T00:00:00+00:00

File:KB United States.svg - Wikimedia Commons</a>

Muscle memory friendly home row mods (QMK+ZMK+Vial+Kanata, v1.2)

2025-08-26T00:00:00+00:00

Last updated: 2026-03-06

This article presents a keyboard layout suitable for 40% keyboards, based on “home row mods”. The layout is designed for software developers and authors of multilingual texts. Particular emphasis was placed on ease of learning. The layout presented here is implemented both as a Kanata</a> driver for standard keyboards on Linux, Mac, and Windows computers, and as [ZMK Firmware] and [QMK Firmware] for small 36-38 key column-staggered split keyboards. This way you benefit from ergonomic home row mods on all your input devices.

NOTE: The solution presented here is language-agnostic: it works equally well for QWERTY, AZERTY, and QWERTZ keyboards. For simplicity's sake, the following illustrations show the US QWERTY layout. </blockquote>

Setting up an IPv6 only home network with OpenWrt

2025-01-07T00:00:00+00:00

Almost all ISPs today offer both IPv4 and IPv6. The same applies to network hardware for home use. Modern devices can easily communicate via IPv4 and IPv6 simultaneously using the so-called dual-stack technology. If the server supports both protocols, the end device decides which protocol is used. Of course, this can only work if the software of the entire infrastructure is laid out twice: once for IPv4 and once for IPv6. This dual implementation of the network software also has disadvantages. To begin with, with the complexity of the software increases the attack surface for cyberattacks. Also, the likelihood of misconfiguration raises, which can make the attacker's work easier. Last but not least, all firewall rules must be defined for both protocols, which is prone to errors.

The long way of the German sharp s "ẞ" into Linux

2024-11-12T00:00:00+00:00

[Last update: 2025-05-15]
The European Keyboard EurKEY</a> is a keyboard layout based on the American keyboard layout. It is very popular with translators and programmers who appreciate the easy access to special characters. It also offers convenient access to many European letters and accents. In 2017 a long awaited new letter joined the German alphabet: the uppercase sharp S: ß</a>.
Since then, the letter has been added to many keyboard layouts, including the EurKEY layout, which has been mentioned several times in this blog. In 2021, an update was accepted in the software repository xkbdesc/xkeyboard-config</a>, which removes the sharp S again, arguing that "the uppercase Ssharp ẞ is nearly useless". This blog post highlights this controversy</a>.

How to shallow clone a Cow

2024-11-01T00:00:00+00:00

Rust's “copy on write” Cow</code> abstraction is very useful to avoid costly cloning when dealing with vectors or strings. A Cow allows you to defer allocating new memory until it becomes inevitable. Consider the following example:
use std::borrow::Cow; fn do_something_or_nothing(v: Cow<str>) -> Cow<str> { if v.len() > 3 { let s = "Hello ".to_string() + &*v; Cow::Owned(s) } else { v } } </code></pre>
Sign with your Estonian ID card under NixOS 2024-04-03T00:00:00+00:00 This note shows how to install the Estonian Electronic Identity Software</a> on NixOS. Set up a Zettelkasten with Tp-Note 2023-09-04T00:00:00+00:00 This blog post shows how to set up Luhmann's Zettelkasten with Tp-Note and how to work with it. Tp-Note news: Multilingual note-taking with linguistic heuristics 2023-04-28T00:00:00+00:00 Tp-Note</a>'s main design goal is to convert some input text - usually provided by the system's clipboard - into a Markdown note file with a descriptive YAML header and meaningful filename. This blog post explains how to configure Tp-Note</a> for multilingual note-taking. Consider the following note file example: --- title: Demokratie und Menschenbild subtitle: Vorlesung author: Prof. Rainer Mausfeld date: 2023-04-21 lang: de-DE --- Kognitionswissenschaftliche Einsichten in die Beschaffenheit des Menschen. </code></pre> The YAML variable lang:</code> indicates the natural language in which the note text is authored, here de-DE</code>. This IETF language tag</a> is useful when working with grammar and spell checkers. For example: when placed in last position, the grammar checker LanguageTool (LTEX)</a> reads the variable lang:</code> to activate the grammar and spelling rules for the indicated specific language (c.f. blog post</a>). The recently released Tp-Note</a> version 1.21.0 integrates linguistic analysis provided by the Lingua</a> library. This new feature allows Tp-Note</a> to determine automatically the natural language of new note files during their creation process. Tp-Note renders MathML and adds syntax highlighting 2022-12-16T00:00:00+00:00 One downside when you take notes with your keyboard and laptop is, that you can not enter mathematical formulas. To remedy this, Tp-Note version 1.19.8 comes with a new feature: its note viewer and internal web-server can now render MathML in note files written in Markdown. It also features syntax highlighting for source code. Note talking with Helix, Tp-Note and LanguageTool 2022-09-30T00:00:00+00:00 I recently discovered the text editor Helix</a>, a relatively new project written in Rust. Many features, like Tree-sitter integration or support for the Language Server Protocol LSP are available by default without any plugins or laborious configuration. This short note shows how to integrate Helix with the template tool Tp-Note</a> and the grammar checker LanguageTool</a> under Linux. Tp-Note news: bidirectional filename synchronization 2022-03-14T00:00:00+00:00 In one of my previous posts Note Taking for Minimalists</a> we argued about the importance to keep full control over all the tools we take personal notes with. In this approach personal notes are simple text files, that live in the filesystem next to other resources they refer to. As (note) files are identified by their filename, special care needs to be taken to ensure that the files are named consistently e.g. using so called sort tags, that specify their sequence or chronological order when listed. Secondly, the filename must reflect the content description (meta data) of a note. This is where the note taking tool Tp-Note</a> comes into play: it takes care, that the filename of a note exposes the note's meta data. Technically, Tp-Note</a> reads the YAML header of the note file - in particular the title field - and corrects the filename of the note, if does not comply with some synchronization rule. From it's first version on Tp-Note</a> was able to synchronize the note's meta data and filename unidirectionally. With Tp-Note</a> version 1.16 comes a new feature: bidirectional filename synchronization</a>. This new feature allows you to add automatically YAML header to any existing text file. Used in scripts you can convert your random text file collection into ordered note files with meta data. Install the international US keyboard layout with the European EurKEY extension on Windows 2021-10-22T00:00:00+00:00 EurKEY - The European Keyboard Layout</a> is based on the American keyboard layout. It is well suited for translators and programmers who are used to the US keyboard layout. It has has a very convenient access to European letters and accents. This note explains how to install the latest version 1.3 on Windows. For Linux instructions please refer to: Install the international US keyboard layout with the European EurKEY extension on Linux</a>. VFS7500 Touch Fingerprint Sensor with Debian 11 Bullseye 2021-09-10T00:00:00+00:00 This short note shows how to install the software driver for the Validity Sensors, Inc. VFS7500 Touch Fingerprint Sensor which can be found in Lenovo's T460s, T470s and many other laptops. Minimalist Note Taking with Neovim and Tp-Note 2021-08-31T00:00:00+00:00 In one of my previous blog posts I introduced the concept of minimalist note taking</a> as a note taking method and life style, that tries to improve informational self-determination by restricting oneself to a fully controlled hard and software environment. The presented method solely relies one some UTF-8 text editor application and optionally on a template system like Tp-Note</a>. This note explains how to configure Tp-Note</a> for Neovim</a>. In the following I presume, that you know about Neovim</a>'s qualities already, so I will rather focus on the technical details about how to integrate the template system Tp-Note</a> with Neovim</a>. Generate Vim's spell checker language file for Estonian: et.utf-8.spl 2021-07-15T00:00:00+00:00 This short note shows how to generate Vim's spell file format from the .aff</code> and .dic</code> files that Myspell uses. Myspell is distributed, inter alia, with OpenOffice.org and many Mozilla products. The OpenOffice .oxt</code> files are zip packed archives containing Myspells's .aff</code> and .dic</code> dictionary files. As the Estonian spell file can not yet be downloaded automatically, we will go through the manual compilation and installation of the Estonian spell checker language file. Note Taking for Minimalists 2021-03-17T00:00:00+00:00 Confidentiality and technology selection</h2> Personal notes reveal a lot about us: our unfiltered thoughts expose our (political) opinions and feelings and make us thus vulnerable in a social environment where a thoughtless word could mean the end of our (political) career. This is why note taking is counted as a severely individual, private, intimate activity. Tp-Note news: produce, retrieve and consume note files on the console 2021-02-23T00:00:00+00:00 The template based note-taking tool Tp-Note was originally designed as desktop application: Before creating a new note, the user copies interesting bits of text into the clipboard. When Tp-Note starts, it analyses the clipboard's content and fills out some template to create a new note. As Tp-Note makes extensive use of the clipboard, it mainly targets desktop systems running a graphical environment. But also when working on the console Tp-Note can be useful with its built-in clipboard simulation: Instead of copying the content into your clipboard, pipe it into Tp-Note ^{1</div> echo "Some clipboard content" | tp-note </code></pre>} Where to store notes? Database? File system? 2021-01-19T00:00:00+00:00 Seeing the myriad of note-taking software out there, it is not easy to find the right tool for a specific purpose. One way to categorize note talking software is to look at how the software stores the note. Technically, they fall into two categories: Database storage</li> File system storage</li> </ol> This short note explains the two approaches to note-taking by means of two chosen free software tools: Zotero</a> and Tp-Note</a>. The latter is presented more in detail. My Tp-Note usage statistic for 2020 by file size 2021-01-12T00:00:00+00:00 This note presents a short quantitative analysis on how I used Tp-Note</a> in 2020. Tp-Note</a> is a note taking template system, that generates (by default Markdown) note files from clipboard data. Tp-Note learns some Asciidoc 2021-01-03T00:00:00+00:00 This short note describes how Tp-Note's internal viewer renders Asciidoc hyperlinks, allowing to open and to follow quickly hyperlinks in Asciidoc formatted note files. The German keyboard norm DIN 2137-01:2018-12 integrates gender ideology 2020-11-15T00:00:00+00:00 The German E1 keyboard layout</a> is an extension to the German basic layout containing a complete set of letters for all European languages. It comes with a set of dead keys giving access to all imaginable accents. My verdict after having tested the layout for some months now: this is the keyboard for Latin based languages! Beyond the specific case-related benefits arising out of its universal design, I don't expect to it proliferate widely, because it privileges the characters “äöüß” that are mostly used in German. Also the disposition of the letter “z” in the upper QWERTZ row, will discourage many people used to the QWERTY design. Computer programmers also, usually prefer the US keyboard because many common keyboard shortcuts are tailored for this design. A part from that, a national keyboard layout is also expression of the writing culture of a country. In this regard it is particularly disappointing that this honorable new norm ships gender ideology. Tp-Note learns RestructuredText 2020-11-09T00:00:00+00:00 Good news for RestructuredText fans! This short note describes Tp-Note's new internal markup rendering feature. Tp-Note gets a web server and note viewer 2020-11-01T00:00:00+00:00 One of my favorite use case of Tp-Note</a> is the quick documentation of hyperlinks of any kind. All you need for this, is a browser addon like Firefox add-on to copy selection as Markdown</a>. The rest is automatic, Tp-Note's templates generate the note without intervention. Tp-Note news: fast note taking for system administrators (and console lovers) 2020-10-23T00:00:00+00:00 The template based note-taking tool Tp-Note was originally designed as desktop application: Before creating a new note, the user copies interesting bits of text into the clipboard. When Tp-Note starts, it analyses the clipboard's content and fills out some template to create a new note. This is why people who are working with non-graphical headless systems could not use Tp-Note efficiently: in general, these systems offer no clipboard. With version 1.7, Tp-Note comes with a new feature making it interesting for system administrators and console lovers: instead of injecting data into the templates via the clipboard, Tp-Note also reads the standard I/O input stream stdin</code>. This way Tp-Note offers its full functionality on headless systems. Tip: If you are new to Tp-Note, you may want to watch the introductory video about Tp-Note</a>. Install the international US keyboard layout with the European EurKEY extension on Debian from source 2020-10-02T00:00:00+00:00 EurKEY - The European Keyboard Layout</a> is based on the American keyboard layout. It is well suited for translators and programmers who are used to the US keyboard layout. It has has a very convenient access to European letters and accents. This note explains how to install the latest version 1.3 on Debian Linux. For Windows instructions please refer to: Install the international US keyboard layout with the European EurKEY extension on Windows</a>. Install the international “German E1 keyboard layout” on Debian from source 2020-10-01T00:00:00+00:00 The “German E1 keyboard layout” is an extension to the German basic layout containing a complete set of letters for all European languages. This layout is of special interest for translators and programmers. This short note explains how to install the German E1 keyboard from source. ASCII-Hangman for Kids is available as Web-App 2020-06-26T00:00:00+00:00 ASCII-Hangman is guessing game for children with ASCII-art rewarding. It was originally designed to revise vocabulary in classroom, but can be used alone also. The setting up of the vocabulary list is part of the learning process. I am happy to announce that the newly released ASCII-Hangman version 5.0.0 comes with a Web interface allowing to play online without installation. The desktop versions for Linux, Mac and Windows are continued. Start Playing now</a> Switch Debian from legacy to UEFI boot mode 2020-05-30T00:00:00+00:00 This note explains how to switch a legacy boot Debian/Ubuntu system into a UEFI boot system. How to Connect a Turntable to a TV set with Raspberry Pi 2020-04-10T00:00:00+00:00 This short note explains how to how to connect a turntable to a TV-set and build ab inexpensive multimedia centre with second hand parts. Announcing Play-RSA Version 0.4 2020-03-31T00:00:00+00:00 Play-RSA is a Rust implementation of RSA cryptography for pedagogical use. Index of Downloads 2020-03-26T00:00:00+00:00 When downloading resources from this server, please verify their SHA1 hash sum</a> to check their integrity and authenticity. adobe-air-with-wine.pdf</a></li> asciidoctor-notetaking.pdf</a></li> asciidoctor-notetaking.zip</a></li> ascii-hangman--manual.pdf</a></li> ascii-hangman.zip</a></li> asn1-tiny-decoder.pdf</a></li> asn1-tiny-decoder.zip</a></li> bash-scripts.pdf</a></li> bash-scripts.zip</a></li> blockletter-font-latin-cursive-alternatives.pdf</a></li> blockletter-font-latin-cursive-official.pdf</a></li> digidoc-open-eid--debian10.pdf</a></li> digidoc-open-eid--debian9.pdf</a></li> docbook52pdf-example.pdf</a></li> embedded-system-security-with-Rust.pdf</a></li> encrypted-raid1-nas.pdf</a></li> forensic-tool-development-with-rust.pdf</a></li> forensic-tool-development-with-rust--slides.pdf</a></li> How-to-use-Bienchen-handwriting-font.pdf</a></li> How-to-use-Deutsche-Normalschrift-font.pdf</a></li> i3-extensions.pdf</a></li> i3-extensions.zip</a></li> Java-at-school-v1.pdf</a></li> Java-at-school-v1-solutions.pdf</a></li> Java-at-school-v2.pdf</a></li> Java-at-school-v2-solutions.pdf</a></li> legacy-to-uefi-boot.pdf</a></li> mitigate-effects-of-crime-ecnonomy.pdf</a></li> model_of_tool_neutral_testing.pdf</a></li> pandoc-notetaking.pdf</a></li> pandoc-notetaking.zip</a></li> Published-TES-fonts.zip</a></li> restructuredtext-notetaking.pdf</a></li> restructuredtext-notetaking.zip</a></li> reverse-ssh-tunnel.pdf</a></li> Secure-programming-of-resource-constrained-devices--Jens-Getreu.pdf</a></li> snd-aloop-device.pdf</a></li> ssh-cluster-administration.pdf</a></li> stringsext--manpage.pdf</a></li> tpnote--manpage.pdf</a></li> tpnote--manual.pdf</a></li> Transaktionsanalyse-im-Schulalltag.pdf</a></li> turntable2tv.pdf</a></li> </ul> Announcing Tp-Note: fast note taking with templates and filename synchronization 2020-03-11T00:00:00+00:00 Abstract: Tp-Note helps you to quickly get started writing notes with its powerful template system. As Tp-Note takes care that the note’s filename is always synchronized with its document title, you will find back your notes easily. Index of Projects 2020-02-08T00:00:00+00:00 When downloading resources from this server, please verify their SHA1 hash sum</a> to check their integrity and authenticity. adobe-air-with-wine</a></li> ascii-hangman</a></li> asciidoctor-notetaking</a></li> asn1-tiny-decoder</a></li> bash-scripts</a></li> digidoc-open-eid--debian9</a></li> digidoc-open-eid--debian10</a></li> embedded-system-security-with-Rust</a></li> encrypted-raid1-nas</a></li> forensic-tool-development-with-rust--slides</a></li> forensic-tool-development-with-rust</a></li> i3-extensions</a></li> legacy-to-uefi-boot</a></li> mitigate-effects-of-crime-ecnonomy</a></li> pandoc-notetaking</a></li> play-rsa</a></li> restructuredtext-notetaking</a></li> reverse-ssh-tunnel</a></li> sanitize-filename-reader-friendly</a></li> secure-programming-of-resource-constrained-devices</a></li> snd-aloop-device</a></li> ssh-cluster-administration</a></li> stringsext</a></li> tp-note</a></li> turntable2tv</a></li> </ul> Announcing Stringsext Version 2 2020-01-04T00:00:00+00:00 This blog post is about stringsext version 2, a major rewrite of the original software</a>. Version 2 comes with performant filter for scripts like “Latin“, “Arabic”, “Hebrew”, “Cyrillic”, ... stringsext is a Unicode enhancement of the GNU strings tool with additional functionalities: stringsext recognizes Cyrillic, CJKV characters and other scripts in all supported multi-byte-encodings, while GNU strings fails in finding any of these scripts in UTF-16 and many other encodings. Update 2020-02-23: Besides Linux, Windows and Mac binaries, Debian/Ubuntu packages</a> are available for download. More articles about Stringsext</a> are available. Midnight-Commander as console .eml and .mbox email-file-viewer 2019-11-26T00:00:00+00:00 This short note explains how to configure the GNU-Midnight-Commander to view .eml</code> and .mbox</code> email-files saved by Thunderbird or Evolution. Scientific publication: Enhancing Forensic-Tool Security with Rust: Development of a String Extraction Utility 2019-10-27T00:00:00+00:00 Abstract</h2> The paper evaluates the suitability of the Rust ecosystem for forensic tool development. As a case study, a forensic tool named Stringsext is developed. Starting from analyzing the specefic requirements of forensic software in general and those of the present case study, all stages of the software development life-cycle are executed and evaluated. Stringsext is a re-implementation and enhancement of the GNU-strings tool, a widely used program in forensic investigations. Digidoc Open-EID: Installation instructions for Debian 10 Buster 2019-07-15T00:00:00+00:00 This note shows how to install the Estonian Electronic Identity Software</a> on Debian 10. Update 20191023: Although not officially supported, RIA decided to modify their software in a way that it also runs on Debian 10 Buster. The following is not needed any more as the installer script is now working out of the box. ASCII Art Hangman for Kids 2019-07-13T00:00:00+00:00 ASCII Art Hangman for Kids is a children computer Hangman game designed to revise vocabulary in classroom. The setting up of the vocabulary list is part of the learning process. Hangman is a paper and pencil guessing game for two or more players. One player thinks of a word, phrase or sentence and the other tries to guess it by suggesting letters or numbers, within a certain number of guesses. In this version for children the computer selects a word, phrase or sentence randomly out of a word-list defined in a configuration file. In the course of the game ASCII-Art images - designed for children - are progressively disclosed. There are 10 built in ASCII-Art images from which one is chosen randomly at the beginning of the game. Alternatively own ASCII-Art can be provided in the configuration file. Update 20190713: Version 4.9.0 asks a secret only once Digidoc Open-EID: Installation instructions for Debian 9 Stretch 2019-01-15T00:00:00+00:00 This note shows how to install the Estonian Electronic Identity Software</a> on Debian 9. Reverse SSH-tunnel: Access your home server without router configuration 2018-12-28T00:00:00+00:00 Accessing your home server from outside your local network is usually done by forwarding a port of your server through the router. This note describes a different approach allowing to establish a peer-to-peer connection between hosts on different private networks without having access to the router. Conference talk at DSS ITSEC 2018: Forensic-Tool Development with Rust 2018-11-23T00:00:00+00:00 This talk hold in Riga at DSS ITSEC 2018 – 9th Annual International Cyber Security Conference</a> is about technology assessment and a case study evaluating the suitability of Rust in Digital Forensics. Within the framework of this study the suitability of the Rust ecosystem for forensic tool development was evaluated. As case study, the tool Stringsext was developed. Starting from analysing the specific requirements of forensic software in general and those of the present case study, all stages of the software development life-cycle have been executed, up to the first production release. A collection of Bash scripts 2018-10-27T00:00:00+00:00 Here you find a selection of some of my Bash scripts that you may find useful. I wrote them many ago and they are still in use. Bucket-NAS: Set up an encrypted NAS on Odroid-C2 or Rasbperry 3 with OpenMediaVault (OVM) 2018-10-20T00:00:00+00:00 This note explains how to set up a cheap Raid 1 NAS with an Odroid or Rasbperry board and two USB-harddisks using OpenMediaVault. Only very cheap and largely available hardware components are used. When very high availability is required it is recommended to hold available a second Oroid/Rasbperry board with a mirrored SD-card containing the NAS operating system. In this way the system has no single point of failure. Java at school / Java à l'école 2018-06-16T00:00:00+00:00 Java at school / Java à l'école is a collection of self-learning Java exercises in French for A-level students. Java à l’école est un recueil d’exercices pour débutants sans connaissances d’autres langages de programmation. Contrairement à d’autres méthodes didactiques les exercices introduisent directement les bases de la programmation orientée objet en respectant le concept de programmation "Architecture Modèle/Vue/Contrôleur". Secure Programming of Resource Constrained Devices 2018-02-01T00:00:00+00:00 Slides of a presentation I held in Warsaw, 16 January 2018. Causes of embedded systems vulnerabilities and weaknesses </li> Dealing with malicious input and integrating this in the development process </li> Explanation of Rust programming technology and system response testing </li> </ul> Note taking with Pandoc 2017-08-09T00:00:00+00:00 This project is discontinued. Please use tp-note</a> instead. The code of tp-note</code> is more generic, works with all markup languages (including Markdown). </blockquote> Markup languages like Markdown, ReStructuredText, textile, txt2tags or mediawiki are perfectly suited for fast note taking. Type your notes with your favorite editor, chose your favorite markup language and view them with Chromium, Chrome or Firefox . All you need is the pandoc-note</code> script, the Pandoc</a> format converter, an editor of your choice and Chromium, Chrome or Firefox as live previewer. If not available, pandoc-note</code> also works without pandoc</code>. Tiny and fast ASN.1 decoder in Python 2017-03-17T00:00:00+00:00 asn1tinydecoder.py</code> is a simple and fast ASN.1 decoder without external libraries designed to parse large files. Redirecting an audio stream with `aloop` 2017-03-15T00:00:00+00:00 This manual shows how to record the output of Windows applications using wine</code>, the snd-aloop</code> kernel module and recordMyDesktop</code>. Install Adobe-Air Applications in Wine 2017-03-14T00:00:00+00:00 Many older educational study materials do only support Windows. For example the German editor Hüber produced many of its language programs with Adobe AIR</code>. Unfortunately Adobe abandoned AIR for Linux</code> a long time ago. Since then there was no way to run Adobe AIR applications on Linux machines. The improvements in wine 1.8</code> together with some wine-tricks</code> now allows Adobe AIR</code> applications to run with wine</code>. This note explains the setup. i3 window manager extensions 2017-03-13T00:00:00+00:00 i3</a> is a tiling window manager for advanced Linux users. This note introduces some handy extensions to i3</code>: a file-manager extension with a proper workflow,</li> an exit-mode extension and</li> a pass-through-mode extension.</li> </ul> Secure Computer Cluster Administration with SSH 2017-03-13T00:00:00+00:00 This article compares the SSH-cluster-tools parallel-ssh</code>, clusterssh</code> and clustershell</code>. SSH-cluster-tools are handy to execute shell-commands on a group of computers in parallel. Note taking with Asciidoctor 2017-03-12T00:00:00+00:00 This project is discontinued. Please use tp-note</a> instead. The code of tp-note</code> is more generic, works with all markup languages (including Markdown). </blockquote> Markup languages like Asciidoc are perfectly suited for quick note taking. Type your notes with your favourite editor, view and browse them with Chromium, Chrome or Firefox. Embedded System Security with Rust 2017-03-11T00:00:00+00:00 Real-time embedded systems have to meet a combination of requirements that are in deep tension: they are expected to deliver timely results, observing strict deadlines, all using only very limited resources, computing power and energy. To this day, the most common programming language in this environment is C/C++ because of its zero-cost abstractions and fine control over memory layout. With the upcoming communication ability through network interfaces, an additional requirement gained in importance: security. Mitigate the Devastating Effects of Crime Economy Through Eradicating Bitcoin 2017-03-10T00:00:00+00:00 This note first analysis the preconditions for a successful regulation policy on new information technologies. We explain how the new crime economy, based on anonymous division of labour, works. By going back in history we understand that controlling the money flow is the key to mitigate organized crime. Applied to our generation the author argues, that the most efficient way to fight against this new age of crime economy is to eradicate Bitcoin by prohibiting mining. Forensic-Tool Development with Rust 2017-03-09T00:00:00+00:00 Within the framework of this study the suitability of the Rust ecosystem for forensic tool development was evaluated. As case study, the tool Stringsext was developed. Starting from analysing the specific requirements of forensic software in general and those of the present case study, all stages of the software development life-cycle have been executed, up to the first production release. Stringsext is a reimplementation and enhancement of the GNU-strings tool, a widely used program in forensic investigations. Stringsext recognizes Cyrillic, CJKV characters and other scripts in all supported multi-byte-encodings while GNU-strings fails in finding these in UTF-16 and other encodings. Stringsext 2017-03-08T00:00:00+00:00 stringsext is a Unicode enhancement of the GNU strings tool with additional functionalities: stringsext recognizes Cyrillic, CJKV characters and other scripts in all supported multi-byte-encodings, while GNU strings fails in finding any of these scripts in UTF-16 and many other encodings. Note taking with reStructuredText 2017-03-07T00:00:00+00:00 This project is discontinued. Please use tp-note</a> instead. The code of tp-note</code> is more generic, works with all markup languages (including Markdown). </blockquote> Markup languages like reStructuredText are perfectly suited for quick note taking. Type your notes with your favourite editor, view and browse them with Chromium, Chrome or Firefox. Learn handwriting - School fonts for primary 2014-02-16T00:00:00+00:00 Handwriting skills are still as important: most of the exams at university are held with pen and paper and still many companies in Europe ask for a handwritten motivation letter as a first selection criteria. Our research has shown that all common beginner workbooks used in different European languages refer to the same linear-Antiqua font. You can find this font in this package under the name FibelNordTT</code> which is the official TES font to be used for all worksheets in Nursery and in P1-P2 Primary. Alternatively the fonts Grundschrift</code> and Patrick Hand</code> can be used. Transaktionsanalyse im Schulalltag 2008-01-11T00:00:00+00:00 In der vorliegenden Arbeit werden ausgewählte, theoretische Grundlagen der Transaktionsanalyse wie die Struktur- und Funktionsmodelle der menschlichen Persönlichkeit erarbeitet und vorgestellt.