I am searching for an Markdown Editor, with a similar Live-Preview feature to Obsidian. In particular, I do not want to split the view into source and preview, but have the preview as the main window and only switch to source code for the line/block I am currently editing.
Nextcloud uses a similar feature for their in-browser editor, but I need an offline variant.
https://github.com/TriliumNext/Notes is a fork that appears to be actively developed. Found it near the end of the issue linked from the maintenance notice.
I was thinking more of its native file format it saves to. It said "import from Markdown" which seemed to suggest it is not saving all in Markdown (otherwise would have said opens and saves to). But maybe it is just badly worded.