I showed lines.love here a few weeks ago, and I've been mostly fixing bugs since. It might be converging to a fixed point now; no more features, bugs slowing to a trickle, most changes containing a 1-line fix and a dozen lines for a test. Then my hope is that it will continue to work reliably for a while without needing any updates (assuming future versions of https://love2d.org cooperate).
To freeze things I need to provide escape hatches. When people ask for new features, provide them either in forks (example) or as separate applications entirely. That way the lines.love codebase stays approachable/hackable/habitable, particularly for people who don't need the additional features. Here's an example of a separate application: an exporter to markdown+SVG: https://codeberg.org/akkartik/lines2md.
You can see it in action in this video. There's minimal UI here. I export files by dragging them on the exporter window, and it emits new files in the folder window that I can then open in any markdown application (that can render SVG).