I'm attempting to make a ERD and most of what I find on google are just heavily SEO'd SaaS-wares begging me to pay $$ per month for the privilege of manually dragging my mouse around their slow websites for hours. I'm using postgres but I'm fine with anything that requires a little bit of scripting or config files as long as it doesn't require yet another free trial of barely useful. The non-free ones that I have tried, have huge usability issues such as requiring me to drag literally every table into the diagram, one by one, and also the auto-arrange feature made an obsurdly large diagram with cartoonishly high amounts of whitespace.

Long term, I'd like to be able to automatically generate 5-10 ERDs (because all-in-one is too big) of these as part of my CI/CD process for my documentation.