One of my proudest open source contributions is also to excalidraw. It's a small tweak. Since about a year ago, chrome will re-save the .png to disk when you ctrl+s or cmd+s (with the embedded scene, and without prompting for a location). It gives you a really nice workflow for documentation and remark-style slides for presentations. Source: almost 2 years ago

Just some text, but easy to tweak/adopt/write? -> https://remarkjs.com. Source: over 2 years ago

I also recommend https://sli.dev/ it’s pretty batteries included and mdx based. - Source: Hacker News / 3 months ago

I didn't really tried it yet, but Slidev could be worth a try. Source: 5 months ago

So of course, [I tweeted (https://twitter.com/itsthatladydev/status/1717737766027514046) and someone suggested slidev. - Source: dev.to / 6 months ago

I guess since the last promotion I've mostly just provided comments to (powerpoint) presentations of others rather than having to create one myself. It's been so long since then that I wouldn't be able to recall what my setup even is at this point, but I believe I did research and chose sli.dev in the end. I wish I could share more, alas, my notes from those times are laughable. Source: over 1 year ago

Seeing that you use Marp, did you take a look at https://sli.dev yet? I've switched to that from Marp and it's been pretty great! I've held my Bachelor's colloquium and a 100+ min presentation at work with it and it was fantastic! Source: over 1 year ago