There’s no setup project and no system to design first. A new account comes with time categories, a library of common foods and habit ideas to pick from, and Today lists your first steps until you’ve taken them or put them away.
From then on you record things as they happen: start a timer or log time you’ve already spent, tick a habit, write a page, add an expense or import a bank statement, log a meal. Search (Ctrl K, or ⌘K on a Mac; the search button on a phone) jumps to any part of Lifestack and finds your pages. The New menu starts a page, a timer or a time entry, or adds a money record such as an expense or earning; habits are ticked on Today or in Habits, and meals are logged in Nutrition. Today shows the day; Reports, streaks, spending by category and your net worth show how the weeks add up.