FYI there's a dedicated extension for this, but the react code editor you see broke it a while back, so now it only works on PRs and other code embeds.

See OctoLinker/OctoLinker#1695

I found this gist that works already, on ctrl-click: https://gist.github.com/kiliman/5d7a3826bc16f5967978336d026805a3

However it does not give any feedback on hover because it does the parsing on click and it does not alter the DOM.

Ah thank you! That's great. I might make this into a separate extension - support other package managers and file paths in general. Appreciate the advice!

The hope is to pick up Octolinker again since it already supports and parses a lot of package managers, rather than publish a brand new extension. The missing/broken part is the new React code widget parser/linkifier. I'm currently exploring what's possible, but it's not easy

Sweet! I'll close this as not planned and look to improve upon those other solutions :)

Side note: have there been any benefits of GitHub's migration to React? Just breaks things, like external extensions, but also stuff on their own site! 😒

benefits of GitHub's migration to React

To extension developers absolutely not. For them I assume it's easier to create more interactive and faster UIs, like the file explorer. But particularly the file viewer has become insanely convoluted (not because of React though)