We're finally getting there. The model of web notebooks look a lot like Hypercard stacks in terms of usability; there's only missing someone packing them in and easy-to-use distribution and sharing environment that does not depend on users installing their own web server.
And if that package includes some reasonable local LLM model, creating simple programs by end users could be even easier than it ever was with Hypercard.
PWAs could have been so good. redbean/llamafile might be the closest, though.