Get the latest tech news
A beginner's guide to extending Emacs
How to build a custom completion backend for emacs from scratch.
Note that running this a few times will eventually error out after no matches exist past your point. Without belaboring the point, you can – like I did – discover most of these functions by skimming existing elisp code and using it as a launch pad. Many of these functions are bog standard and show up all over the place in emacs packages ( save-excursion, progn, goto-char …)
Or read this on Hacker News
