npm install to initialize node_modules folder

Put each puzzle in its own directory, labeled with a number (such as the example 0001). This will correspond with data files under data/0001/*.txt

Put visualizations for a puzzle in app/visualization/ and reference them in app-routing.module.ts. If a puzzle doesn't have a visualization, it directs to GenericPuzzle component which will just display the output to the browser window.

ng serve for webserver

and CTRL-SHIFT-B / tsc: watch - tsconfig.json to auto-compile src

F5 / CTRL-F5 to run current puzle