Firstly, I absolutely love BSS. Great piece of software, very well designed. My boss introduced me to Webflow the other week, and as great as it looks it's not a patch on BSS. Webflow, like similar platforms, seems to sell users on the idea that they can produce a great site with zero code. Not true. It may be a great tool for static sites or landing pages, but they hide away too much of the code. With BSS, writing code is still integral and at the forefront of the software.
Using BSS, non-coders can get a lot done, sure, but people who are familiar with the technology stack can do accomplish things with it, so I appreciate that.
I work with PHP a lot. What options do I have for wiring up these UI designs with my back-end code. Do I need to do a manual export and then inject the code that way? No big deal if that is the case, BSS is still a great tool that I will use daily for UI work.