This is a private blog by Jens Lechtenbörger.

Jens Lechtenbörger

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Unless explicitly stated otherwise, my posts on this blog are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Support for REUSE (SPDX) headers in emacs-reveal

About 18 months ago, I asked: Do you teach or educate?

I continue to use and develop emacs-reveal, a FLOSS bundle to create HTML presentations based on reveal.js as Open Educational Resources (OER) from Org mode source files in GNU Emacs. Last time, I mentioned license attribution for OER figures as tedious challenge, which I […]

OER figures with license meta-data in emacs-reveal

Do you teach or educate? Do you use somebody else’s educational resources or share your own creations?

As described last year, I created an infrastructure called emacs-reveal to produce HTML presentations as Open Educational Resources (OER) from Org Mode text files in GNU Emacs for my own teaching. If you believe in the values of […]

HTML presentations as OER from Org mode with Emacs

This post has an exceptional topic given the main theme of my blog, but I’d like to advertise and share what I created during summer term 2017, supported by a fellowship for innovation in digital university teaching funded by the Ministry of Innovation, Science and Research of the State of North Rhine-Westphalia, Germany, and […]

GNU Emacs under Qubes OS

A few weeks ago I installed Qubes OS on my PC at work. The project’s self-description is as follows:

Qubes is a security-oriented, free and open-source operating system for personal computers that allows you to securely compartmentalize your digital life.

Essentially, under Qubes you run different virtual machines (VMs), which are more or less isolated […]

Certificate Pinning for GNU Emacs

GNU Emacs is where is spend most of my computer time. Using Emacs, I’m writing texts in general and this post in particular, I’m programming, I’m reading RSS feeds and news articles, I’m reading and writing e-mails. Emacs is highly customizable and extensible which is great, in general. However, in the past Emacs valued convenience […]