Pre-Semester: LaunchpadModule 2: Developer Environment & ToolingReferenceVim and Modal EditingOn this pageVim and Modal Editing Use this page when Vim still feels like random keystrokes instead of a coherent model. Core Ideas Normal mode is home base Insert mode is temporary motions identify text edits act on motions repeated practice matters more than reading more commands Best Local Sources Missing Semester development-environment.md The Linux Command Line chunk 039