I just added reordering to my keyboard-centric flowchart editor. So now you can change the layout by dragging on a node up/down to move it relative to its siblings. Here's a quick demo:

Nice! reminds me of Tldraw’s drag handles: https://twitter.com/tldraw/status/1464638953227788294?lang=en

Thanks, that is super cool. I'd like to add something like that. Right now you can do it through a keyboard shortcut (cmd-shift-arrow). But I'm trying to add more mouse affordances. I think with these abstract concepts it can be hard to come up with a good UI that is easy to discover though.