I used this handy tool to genera colorized source for my talk slides. Paste code on left, click + copy on right, paste into text box in Google Slides. There are other ways of course but with Google Slides, this makes for a fast browser-based workflow. romannurik.github.io/SlidesCod

Fosstodon

Fosstodon is an English speaking Mastodon instance that is open to anyone who is interested in technology; particularly free & open source software.