Building a Trading Analytics Platform in R Shiny

How I went from a simple Quarto document to a full ML-powered trading analytics application — the architecture, the challenges, and what I learned.

Background

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When I first started tracking my trades with Nordnet, I was doing everything in spreadsheets. Then I moved to Quarto documents for reproducible analysis. Then Shiny, and then… it grew.

The Architecture

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# Example code block — automatically styled
library(tidyverse)
library(xgboost)

# Your code here

What I Learned

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Conclusion

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