Another way is to write HTML/CSS and use satori [0] to convert that to SVG. It's meant for Open Graph images (the images that show up when you link a site in Discord, Slack, Twitter, etc.), but it works quite well for anything.
This is obviously not as flexible as true SVG, but it is familiar to author for anyone who's written a React application. I've used it on the backend to generate match reports for League of Legends [1]