I have added a “Slides” page to hold all the slides I use in my public speaking engagements. All my slides are available under the GNU Free Documentation License. If you are interested in engaging me as a public speaker, particularly if you want me to present on one of the slide decks I’ve already posted, please send me a tweet.
To send bitcoin from my mobile phone to a plaintext address on my laptop, I like to use QR codes. At first I used websites like qrstuff.com to generate the QR codes, but leaving the command line just to generate and display an image felt like too much of a hassle to me. Then I started using the
qrencode utilities in Ubuntu’s package repositories, but that involved creating an image file on my hard drive and then deleting it afterward, which felt messy. So I found a quick and easy way to generate and display a QR code from the command line without creating an intermediate file.