diff --git a/README.md b/README.md
index d553c59..5dadaa1 100644
--- a/README.md
+++ b/README.md
@@ -87,7 +87,7 @@ These steps are executed in runner-images. We use `sudo -u tt` to elevate the pe
         - We have `conf-root` and `conf-name` specified in the CLI argument. Then the full path of configuration file is `<conf-root>/<scope>/<conf-name>`.
     3. Generate stages.
         - We have an empty list of stages at the beginning.
-        - We check all the stages from the configuration file. Stages with empty `group` field will always be added. And stages with `group = joj` will be added when `description` contains "joj" (case insensitive).
+        - We check all the stages from the configuration file. Stages with empty `group` field will always be added. And stages with `group = joj` will be added when `description` contains "joj" (case insensitive). You can set arbitrary group keywords in config file, in `groupKeywords` field, but by default the only group keyword is joj.
         - Every stage needs to have an unique `name`, which means if two stages have the same name, only the first one will be added.
     4. Run stages.
         - By default, all the stages will run sequentially.
diff --git a/cmd/joj3/conf/conf.go b/cmd/joj3/conf/conf.go
index fc92c69..cb79bd6 100644
--- a/cmd/joj3/conf/conf.go
+++ b/cmd/joj3/conf/conf.go
@@ -35,9 +35,10 @@ type ConfStage struct {
 }
 
 type Conf struct {
-	Name                string `default:"unknown"`
-	LogPath             string `default:""`
-	ExpireUnixTimestamp int64  `default:"-1"`
+	Name                string   `default:"unknown"`
+	LogPath             string   `default:""`
+	ExpireUnixTimestamp int64    `default:"-1"`
+	GroupKeywords       []string `default:"joj"`
 	Stage               struct {
 		SandboxExecServer string `default:"localhost:5051"`
 		SandboxToken      string `default:""`
@@ -217,10 +218,10 @@ func GetSHA256(filePath string) (string, error) {
 }
 
 func parseMsg(confRoot, confName, msg, tag string) (
-	confPath, group string, err error,
+	confPath string, conventionalCommit *ConventionalCommit, err error,
 ) {
 	slog.Info("parse msg", "msg", msg)
-	conventionalCommit, err := parseConventionalCommit(msg)
+	conventionalCommit, err = parseConventionalCommit(msg)
 	if err != nil {
 		return
 	}
@@ -240,14 +241,6 @@ func parseMsg(confRoot, confName, msg, tag string) (
 			conventionalCommit.Scope)
 		return
 	}
-	groupKeywords := []string{"joj"}
-	for _, groupKeyword := range groupKeywords {
-		if strings.Contains(
-			strings.ToLower(conventionalCommit.Description), groupKeyword) {
-			group = groupKeyword
-			break
-		}
-	}
 	return
 }
 
@@ -282,9 +275,10 @@ func hintValidScopes(confRoot, confName string) {
 }
 
 func GetConfPath(confRoot, confName, fallbackConfName, msg, tag string) (
-	confPath, group string, confStat fs.FileInfo, err error,
+	confPath string, confStat fs.FileInfo,
+	conventionalCommit *ConventionalCommit, err error,
 ) {
-	confPath, group, err = parseMsg(confRoot, confName, msg, tag)
+	confPath, conventionalCommit, err = parseMsg(confRoot, confName, msg, tag)
 	if err != nil {
 		slog.Error("parse msg", "error", err)
 		// fallback to conf file in conf root on parse error
@@ -316,3 +310,16 @@ func CheckExpire(conf *Conf) error {
 	}
 	return nil
 }
+
+func MatchGroups(conf *Conf, conventionalCommit *ConventionalCommit) []string {
+	keywords := conf.GroupKeywords
+	groups := []string{}
+	loweredDescription := strings.ToLower(conventionalCommit.Description)
+	for _, keyword := range keywords {
+		loweredKeyword := strings.ToLower(keyword)
+		if strings.Contains(loweredDescription, loweredKeyword) {
+			groups = append(groups, loweredKeyword)
+		}
+	}
+	return groups
+}
diff --git a/cmd/joj3/main.go b/cmd/joj3/main.go
index 51f4174..3d7bd44 100644
--- a/cmd/joj3/main.go
+++ b/cmd/joj3/main.go
@@ -50,7 +50,7 @@ func mainImpl() error {
 		slog.Error("get commit msg", "error", err)
 		return err
 	}
-	confPath, group, confStat, err := conf.GetConfPath(
+	confPath, confStat, conventionalCommit, err := conf.GetConfPath(
 		confRoot, confName, fallbackConfName, msg, tag)
 	if err != nil {
 		slog.Error("get conf path", "error", err)
@@ -78,7 +78,8 @@ func mainImpl() error {
 		slog.Error("conf check expire", "error", err)
 		return err
 	}
-	stageResults, stageForceQuit, err := stage.Run(confObj, group)
+	groups := conf.MatchGroups(confObj, conventionalCommit)
+	stageResults, stageForceQuit, err := stage.Run(confObj, groups)
 	if err != nil {
 		slog.Error("stage run", "error", err)
 	}
diff --git a/cmd/joj3/stage/run.go b/cmd/joj3/stage/run.go
index 1bc940a..6281034 100644
--- a/cmd/joj3/stage/run.go
+++ b/cmd/joj3/stage/run.go
@@ -3,6 +3,7 @@ package stage
 import (
 	"fmt"
 	"log/slog"
+	"strings"
 
 	"github.com/joint-online-judge/JOJ3/cmd/joj3/conf"
 	executors "github.com/joint-online-judge/JOJ3/internal/executor"
@@ -12,12 +13,22 @@ import (
 	"github.com/jinzhu/copier"
 )
 
-func generateStages(conf *conf.Conf, group string) ([]stage.Stage, error) {
+func generateStages(conf *conf.Conf, groups []string) ([]stage.Stage, error) {
 	stages := []stage.Stage{}
 	existNames := map[string]bool{}
 	for _, s := range conf.Stage.Stages {
-		if s.Group != "" && group != s.Group {
-			continue
+		if s.Group != "" {
+			var ok bool
+			loweredStageGroup := strings.ToLower(s.Group)
+			for _, group := range groups {
+				if group == loweredStageGroup {
+					ok = true
+					break
+				}
+			}
+			if !ok {
+				continue
+			}
 		}
 		_, ok := existNames[s.Name] // check for existence
 		if ok {
@@ -84,14 +95,14 @@ func newErrorStageResults(err error) []stage.StageResult {
 	}
 }
 
-func Run(conf *conf.Conf, group string) (
+func Run(conf *conf.Conf, groups []string) (
 	stageResults []stage.StageResult, forceQuit bool, err error,
 ) {
 	executors.InitWithConf(
 		conf.Stage.SandboxExecServer,
 		conf.Stage.SandboxToken,
 	)
-	stages, err := generateStages(conf, group)
+	stages, err := generateStages(conf, groups)
 	if err != nil {
 		slog.Error("generate stages", "error", err)
 		stageResults = newErrorStageResults(err)