# docker buildx debug Start debugger (EXPERIMENTAL) ### Subcommands | Name | Description | |:---------------------------------|:--------------| | [`build`](buildx_debug_build.md) | Start a build | ### Options | Name | Type | Default | Description | |:----------------|:---------|:--------|:--------------------------------------------------------------------------------------------------------------------| | `--builder` | `string` | | Override the configured builder instance | | `-D`, `--debug` | `bool` | | Enable debug logging | | `--invoke` | `string` | | Launch a monitor with executing specified command (EXPERIMENTAL) | | `--on` | `string` | `error` | When to launch the monitor ([always, error]) (EXPERIMENTAL) | | `--progress` | `string` | `auto` | Set type of progress output (`auto`, `plain`, `tty`, `rawjson`) for the monitor. Use plain to show container output |