# poetry-self > Manage the Poetry installation/runtime environment itself. > These commands reference `pyproject.toml` and `poetry.lock` files in your Poetry configuration directory. > See also: `asdf`. > More information: . - Install a package: `poetry self add {{package_name}}` - Install dependencies from the Poetry installation's `pyproject.toml` file: `poetry self install` - Lock dependencies from the Poetry installation's `pyproject.toml` file: `poetry self lock` - Remove a package: `poetry self remove {{package_name}}` - List all installed packages: `poetry self show` - List all installed plugins: `poetry self show plugins` - Sync the runtime environment with the Poetry installation's `poetry.lock` file: `poetry self sync` - Update dependencies from the Poetry installation's `pyproject.toml` file: `poetry self update`