Experience objects for learning colors, numbers, and geometry (vite, ts, d3, paper)

npm run dev    # start dev server
npm run build  # build for production
npm run serve  # locally preview production build

npm run fix       # run all of the below:
npm run prettier  # run prettier --write
npm run eslint    # run eslint --fix
npm run tsc       # run tsc --no-emit

• Use latest stable node (nvm install 16)
• Init with create-vite (npm init vite@latest . -- --template vanilla-ts .)
• Tighten package.json
  • Add engines
  • Use exact versions
• Improve DX
  • Increase tsconfig.json strictness
  • Add prettier & eslint
  • Add vite-plugin-checker (for tsc & eslint in dev/build)
  • Add package.json scripts