# Runtime.source
URL: https://lsd.tools/docs/api-runtime-source
Updated: 2026-07-17

## Example

```python
rt = find_runtime()
print(rt.source)   # → "registry"
```

## Notes

One of `"env"`, `"registry"`, `"well-known"`, or `"path"`, naming which step of the search located the
install. The steps run in that priority order: the `LSD_RUNTIME` / `LSD_HOME` env vars, a Windows
registry uninstall entry named "LSD Desktop", a well-known install dir, then an executable on `PATH`.

## See also

**API:** [find_runtime](/docs/api-runtime-find-runtime) · [install_dir](/docs/api-runtime-install-dir)

**Guides:** [Install LSD](/docs/start-install)