The solution is pretty clear to me but to my knowledge it doesn't exist and the economics of creating it are not that favorable. You need to have a free github

The solution is pretty clear to me but to my knowledge it doesn't exist and the economics of creating it are not that favorable. You need to have a free github/publisher side cache which mirrors the public github repository of the code example. The example should be rendered server side without a javascript library for syntax highlighting / formatting. This way the author, or more likely a reader because the author abandoned the post a second after writing it, can make progressive updates and deprecations - sort of like stackoverflow where an answer can live on past the life of its author. This is not a rife target for a start-up and most likely would have to be offered by a larger player. The service needs to be long-lived and reliable from an operational perspective and its pricing model is not clear as most developers would not pay a dime for it. Github is the most favorable target, I'd pay an extra couple dollars a month to "upgrade" my github account for this functionality. Github Gists are already pretty close to what we need but miss out on a few key features for use in independent blogs (presumably a rate limit and a limited scope that may be too narrow for an example, it might need a full repository).