Flint project lead Marc posted about the reality of his experience adding Flint to an existing app, in order to add Siri Shortcuts. This warts-and-all account shows how easy it is to do the Flint part, as well as some of the common issues adding Intent Extensions to projects, while finding and fixing some Flint API deficiencies along the way!
Article about retro-fitting an app with Flint to add Siri Shortcuts
Written by Marc Palmer