The repo
👉 github.com/djellaldjouad/derivatives-toolkit
10 Python notebooks, minimal deps (numpy, scipy, matplotlib, pandas). Runs on free Google Colab.
Beyond the toolkit
The book FX Traders vs Brokers ($9.99) + the formation Derivatives Trading ($60/month, 5.0/5 on 177 reviews, Bloomberg Pro Terminal): apply the concepts on live institutional flows.