Build a simple project management app in Salesforce. The app includes both a Project and a Timesheet object to enable you to track time. We also build a timekeeping ‘URL-driven’ report that summarizes time for any given project.
The entity relationship diagram / cheat sheet referenced in the video can be found here:
Addendum
Due to changes in how Salesforce processes URLs, the above ERD’s formula for “Last Month’s Timesheet” needs to be replaced with the following:
HYPERLINK("/lightning/r/Report/YOUR_REPORT_ID_HERE/view?fv0="& Id, "Last Month's Timesheets")