i librarized my whole homegrown frontend Auth-, Stripe connection- and ORM (the world's coolest) earlier this year, and today moved one of my Create React App apps to it (in replacement of a having a copy-paste of it in its own codebase, as i used to do everywhere). That system which I call #lovabase is now compatible with both partially-server-side rendered and single page react apps. I was able to delete a *lot* of code today, while performance grew (I made a few performance improvements to the library version of Lovabase since my last sync of all the copy-pastes in the different codebases).