features, err := parseAPIFile(apiFS, filename)
	if err != nil {
		return err
	}
	byFile, err := GroupAPIFeaturesByFile(features)
	if err != nil {
		return err
	}
	var filenames []string
	for fn := range byFile {
		filenames = append(filenames, fn)
	}
	slices.Sort(filenames)
	mcDir, err := minorChangesDir(docFS)
	if err != nil {
		return err
	}