function appendCustomConfigImport($customConfigPath)
    {
        $contents = preg_replace('/^conf-file=.*\/\.valet\/.*$/m', '', $this->files->get($this->configPath));
        $this->files->putAsUser($this->configPath, $contents);

        if (! $this->customConfigIsBeingImported($customConfigPath)) {
            $this->files->appendAsUser(
                $this->configPath,
                PHP_EOL.'conf-file='.$customConfigPath.PHP_EOL
            );
        }
    }