I recently wrote a zine about how Delta Chat can be useful for the needs of anarchists and how much the software aligns with anarchist values.
I love the look and minimalism of HyperCard for presentations and I just got a port of Mini vMac working on OpenBSD, so that's where I made my slides!
You can download the slides on Durian Distro.
To convert it into a PDF, I took screenshots of the emulator, installed ImageMagick on my computer, and ran this simple command:
$ convert *.png delta-chat-slides.pdfAnti-copyright. Everything is in the public domain. Feel free to copy and adapt anything on this website.