If you don’t actually care about this being a website, and you mainly care about the calculations, documentation and delivery, this really sounds like a job for

If you don’t actually care about this being a website, and you mainly care about the calculations, documentation and delivery, this really sounds like a job for a Jupyter[1] and Voila[2]. Write your calculations locally, and then present them on the web automatically. I do understand this doesn’t meet your static site need. But if you’re in this for knowledge transfer and improving the state of the calculators you created perhaps opening up the code to those that could collaborate could be useful. Perhaps you could write the canonical library for those calculations. Keeping the presentation away from the business logic like this is a stated goal… [1] https://jupyter.org/ https://jupyter.org/ [2] https://blog.jupyter.org/and-voilà-f6a2c08a4a93 https://blog.jupyter.org/and-voilà-f6a2c08a4a93 has a pretty good demo that would be effectively what you need to create an interactive calculator.