Strike for macOS is a powerful outlining app that offers collaborative editing, attachment management, and smart text features such as Markdown support and the use of tags.
I was really looking forward to this app because as @camroncade has says it matches perfectly with how I think and write. However, it looks like from the app's support page (https://www.reddit.com/r/strikeapp/) that is no longer being supported. I would love to be proven wrong. But for now, my search for a simpler Scrivener replacement continues.
