Step 1: install elm: https://guide.elm-lang.org/install.html Step 2: install VSCode and plugins: https://github.com/Krzysztof-Cieslak/vscode-elm https://code.visualstudio.com/shortcuts/keyboard-shortcuts-windows.pdf Step 3: start app with elm-reactor or CTRL+SHIFT+P and type Elm: Reactor start Step 4: see hello world