I’ve been working on a new free and open source drawing project to help people create graphics/diagrams/docs. I hope you don’t mind me sharing here, I would be very interested in your thoughts as designers (I come from a dev background). If you have the time to check it out please let me know what you think: Figular.com 
The idea is to let anyone easily create diagrams (or ‘figures’) just from plain text, style them via a simple UI (maybe CSS too), then save/export/embed. I’ve only got two examples so far - an ‘org chart’ hierarchical figure was released just this week - blog post.
To show an example of how the org chart could be used I created a map of the recent FOSDEM event and its hugely impressive virtual presence on Matrix (800+ rooms). I’ve highlighted the Open Source Design Devroom space and its rooms below:
Up close on the OSD rooms:
You can find more details on how this was made on my posts on pixelfed/twitter.
I eventually hope to build a whole library of figures by designing and collaborating in the open with a community. I’m thinking the next figure could be something that creates timelines as those can be tricky to draw by hand. However I’m open to ideas. Thanks for reading!