I'm really impressed by the styling options in https://carbon.now.sh for producing images of code.
I'm often dissatisfied with my options for displaying code samples in slides, this might be a better option. Line numbers and (light background) syntax highlighting matter.
Given the number of game companies that have re-released old games by bundling an OSS emulator, perhaps it's only a matter of time before Microsoft includes Wine in something!
Reading this blog post on the author's experience report in Go, it's striking how much compiler error messages and docs come up. Sometimes these matter more than language semantics!