diff --git a/Makefile b/Makefile
index 1ea1b08..94be716 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,10 @@
 .PHONY: all clean test
 
 BUILD_DIR = ./build
-APP_NAME = joj3
+APPS := $(notdir $(wildcard ./cmd/*))
 
 all:
-	go build -o $(BUILD_DIR)/$(APP_NAME) ./cmd/$(APP_NAME)
+	$(foreach APP,$(APPS), go build -o $(BUILD_DIR)/$(APP) ./cmd/$(APP);)
 
 clean:
 	rm -rf $(BUILD_DIR)/*
diff --git a/README.md b/README.md
index 0753039..cc86608 100644
--- a/README.md
+++ b/README.md
@@ -46,7 +46,7 @@ Each stage contains a executor and parser.
 
 Executor takes a `Cmd` and returns a `ExecutorResult`.
 
-Parser takes a `ExecutorResult` and its config and returns a `ParserResult` and `bool` to indicate whether we should skip the rest stages.
+Parser takes a `ExecutorResult` and its conf and returns a `ParserResult` and `bool` to indicate whether we should skip the rest stages.
 
 ### `Cmd`
 
diff --git a/cmd/joj3/conf.go b/cmd/joj3/conf.go
index 1de41d9..1b67274 100644
--- a/cmd/joj3/conf.go
+++ b/cmd/joj3/conf.go
@@ -68,7 +68,7 @@ func parseConfFile(path string) Conf {
 	conf := Conf{}
 	err := m.Load(&conf)
 	if err != nil {
-		slog.Error("parse stages config", "error", err)
+		slog.Error("parse stages conf", "error", err)
 		os.Exit(1)
 	}
 	return conf
diff --git a/cmd/joj3/main.go b/cmd/joj3/main.go
index af4275b..9cd2837 100644
--- a/cmd/joj3/main.go
+++ b/cmd/joj3/main.go
@@ -51,13 +51,13 @@ func generateStages(conf Conf) []stage.Stage {
 		if len(s.Executor.With.Cases) == 0 {
 			cmds = []stage.Cmd{defaultCmd}
 		}
-		slog.Debug("parse stages config", "cmds", cmds)
+		slog.Debug("parse stages conf", "cmds", cmds)
 		stages = append(stages, stage.Stage{
 			Name:         s.Name,
 			ExecutorName: s.Executor.Name,
 			ExecutorCmds: cmds,
 			ParserName:   s.Parser.Name,
-			ParserConfig: s.Parser.With,
+			ParserConf:   s.Parser.With,
 		})
 	}
 	return stages
diff --git a/internal/executors/sandbox/meta.go b/internal/executors/sandbox/meta.go
index c78ee7c..c22b750 100644
--- a/internal/executors/sandbox/meta.go
+++ b/internal/executors/sandbox/meta.go
@@ -8,7 +8,7 @@ var name = "sandbox"
 
 func init() {
 	stage.RegisterExecutor(name, &Sandbox{
-		// TODO: read from config
+		// TODO: read from conf
 		execClient: createExecClient("localhost:5051", ""),
 		cachedMap:  make(map[string]string),
 	})
diff --git a/internal/parsers/diff/parser.go b/internal/parsers/diff/parser.go
index c93e780..7c70d9f 100644
--- a/internal/parsers/diff/parser.go
+++ b/internal/parsers/diff/parser.go
@@ -7,7 +7,7 @@ import (
 	"focs.ji.sjtu.edu.cn/git/FOCS-dev/JOJ3/internal/stage"
 )
 
-type Config struct {
+type Conf struct {
 	Cases []struct {
 		Score      int
 		StdoutPath string
@@ -16,27 +16,27 @@ type Config struct {
 
 type Diff struct{}
 
-func (*Diff) Run(results []stage.ExecutorResult, configAny any) (
+func (*Diff) Run(results []stage.ExecutorResult, confAny any) (
 	[]stage.ParserResult, bool, error,
 ) {
-	config, err := stage.DecodeConfig[Config](configAny)
+	conf, err := stage.DecodeConf[Conf](confAny)
 	if err != nil {
 		return nil, true, err
 	}
-	if len(config.Cases) != len(results) {
+	if len(conf.Cases) != len(results) {
 		return nil, true, fmt.Errorf("cases number not match")
 	}
 	var res []stage.ParserResult
-	for i, caseConfig := range config.Cases {
+	for i, caseConf := range conf.Cases {
 		result := results[i]
 		score := 0
-		stdout, err := os.ReadFile(caseConfig.StdoutPath)
+		stdout, err := os.ReadFile(caseConf.StdoutPath)
 		if err != nil {
 			return nil, true, err
 		}
 		// TODO: more compare strategies
 		if string(stdout) == result.Files["stdout"] {
-			score = caseConfig.Score
+			score = caseConf.Score
 		}
 		res = append(res, stage.ParserResult{
 			Score: score,
diff --git a/internal/parsers/dummy/parser.go b/internal/parsers/dummy/parser.go
index a572eb5..34abf28 100644
--- a/internal/parsers/dummy/parser.go
+++ b/internal/parsers/dummy/parser.go
@@ -6,27 +6,27 @@ import (
 	"focs.ji.sjtu.edu.cn/git/FOCS-dev/JOJ3/internal/stage"
 )
 
-type Config struct {
+type Conf struct {
 	Score   int
 	Comment string
 }
 
 type Dummy struct{}
 
-func (*Dummy) Run(results []stage.ExecutorResult, configAny any) (
+func (*Dummy) Run(results []stage.ExecutorResult, confAny any) (
 	[]stage.ParserResult, bool, error,
 ) {
-	config, err := stage.DecodeConfig[Config](configAny)
+	conf, err := stage.DecodeConf[Conf](confAny)
 	if err != nil {
 		return nil, true, err
 	}
 	var res []stage.ParserResult
 	for _, result := range results {
 		res = append(res, stage.ParserResult{
-			Score: config.Score,
+			Score: conf.Score,
 			Comment: fmt.Sprintf(
 				"%s, executor status: run time: %d ns, memory: %d bytes",
-				config.Comment, result.RunTime, result.Memory,
+				conf.Comment, result.RunTime, result.Memory,
 			),
 		})
 	}
diff --git a/internal/parsers/resultstatus/parser.go b/internal/parsers/resultstatus/parser.go
index f38a5c9..b023a76 100644
--- a/internal/parsers/resultstatus/parser.go
+++ b/internal/parsers/resultstatus/parser.go
@@ -7,15 +7,15 @@ import (
 	"github.com/criyle/go-judge/envexec"
 )
 
-type Config struct{}
+type Conf struct{}
 
 type ResultStatus struct{}
 
-func (*ResultStatus) Run(results []stage.ExecutorResult, configAny any) (
+func (*ResultStatus) Run(results []stage.ExecutorResult, confAny any) (
 	[]stage.ParserResult, bool, error,
 ) {
-	// TODO: more config options
-	_, err := stage.DecodeConfig[Config](configAny)
+	// TODO: more conf options
+	_, err := stage.DecodeConf[Conf](confAny)
 	if err != nil {
 		return nil, true, err
 	}
diff --git a/internal/stage/model.go b/internal/stage/model.go
index 61eda07..848e4ec 100644
--- a/internal/stage/model.go
+++ b/internal/stage/model.go
@@ -155,7 +155,7 @@ type Stage struct {
 	ExecutorName string
 	ExecutorCmds []Cmd
 	ParserName   string
-	ParserConfig any
+	ParserConf   any
 }
 
 type ParserResult struct {
diff --git a/internal/stage/run.go b/internal/stage/run.go
index b77ac5f..da81992 100644
--- a/internal/stage/run.go
+++ b/internal/stage/run.go
@@ -19,9 +19,9 @@ func Run(stages []Stage) []StageResult {
 			break
 		}
 		slog.Debug("executor run done", "results", executorResults)
-		slog.Debug("parser run start", "config", stage.ParserConfig)
+		slog.Debug("parser run start", "conf", stage.ParserConf)
 		parser := parserMap[stage.ParserName]
-		parserResults, end, err := parser.Run(executorResults, stage.ParserConfig)
+		parserResults, end, err := parser.Run(executorResults, stage.ParserConf)
 		if err != nil {
 			slog.Error("parser run error", "name", stage.ExecutorName, "error", err)
 			break
diff --git a/internal/stage/util.go b/internal/stage/util.go
index 0825f8f..4c9f084 100644
--- a/internal/stage/util.go
+++ b/internal/stage/util.go
@@ -2,11 +2,11 @@ package stage
 
 import "github.com/mitchellh/mapstructure"
 
-func DecodeConfig[T any](configAny any) (*T, error) {
-	var config T
-	err := mapstructure.Decode(configAny, &config)
+func DecodeConf[T any](confAny any) (*T, error) {
+	var conf T
+	err := mapstructure.Decode(confAny, &conf)
 	if err != nil {
 		return nil, err
 	}
-	return &config, nil
+	return &conf, nil
 }