The commands you'll use most with uv:

uv init my_project     # start a new project
uv add pandas          # install a package and record it
uv remove pandas       # uninstall it
uv run main.py         # run your program in the project's environment
uv sync                # recreate the environment from the lock file

The big idea: you never manually activate an environment or call pip — uv run and uv add handle the environment for you behind the scenes. uv sync is how a teammate (or future you) rebuilds the exact same setup from the project files.