Meet Your Dev Machine
By the end you have a second computer inside the first, Ubuntu under WSL2 set up as your own user, and can prove it with whoami and uname -r; you can say where its files live and why FS4's backup never sees them; you have a workspace of three folders, a tool ledger with a why on every row, a ten-line bio page typed by hand that opens in the browser, a backup on your stick that you have restored from once, and a check receipt you have read line by line.