[Question] Digital additive sine wave synthesis from equations

Anyone have tips on digital additive synthesis? I'm looking to define a curve for the overtone series to follow and generate and combine sign waves from that. Looks like there is a way in Python?

https://medium.com/@noahhradek/sound-synthesis-in-python-4e60614010da

Anyone have thoughts or experience with generating sounds in Python? Are there any artifacts I should watch out for? Is there an easier way to generate tones from equations for their overtone series? Thanks!