1. Install the R package with devtools::install_github('Sarah145/SarahSeq')
2. Load the library with library(SarahSeq)
3. Run the shiny app with SarahSeq()
4. When app loads, upload your snp.vcf.gz file from Dante Labs (must be gzipped, or else you'll get max upload file size exceeded error)
5. Play!

Disclaimer: This whole process is very slow, especially step 1 because the package includes uk biobank data and step 4 because your vcf contains ~4 million variants. I'm not sure if there is a way to optimise any of the steps because the data is just so large but I'm open to suggestions!