its a long time ago since I purchased Bootstrap Studio and I had the chance to see the rapidly growing improvement. +1 for that
The idea of supporting multiple frameworks got discussed in this forum and it ended with people who would really appreciate the feature but having concerns about the workload of the creator of Bootstrap Studio and a loose of quality.
The idea from my perspective is to create a standardized format (file or file structure) to easily adapt frameworks in Bootstrap Studio. In theory, the creator would have once something to work on, namely porting all to the new format but then it would be easy to maintain.
It would be enough to just give us this feature and we could create our own adaptions of frameworks.
Although its the decision of the developers if they want to adopt this idea and push it into one of the next big update and could get more paying customers in cause of making the platform better capable of multiple frameworks.
This is just my standpoint of improving this great piece of software. It would be sad if the capabilities are not being exhausted.