use $MAIN_INTERVAL_DURATION

src/main.go

@@ -5,13 +5,21 @@ import (
 	"mayhem-party/src/device/input"
 	"mayhem-party/src/device/output"
 	"mayhem-party/src/device/output/key"
+	"os"
 	"time"
 )
 
 func Main(ctx context.Context) error {
 	reader := input.New()
 	writer := output.New()
-	c := time.NewTicker(time.Millisecond * 50)
+	interval := time.Millisecond * 50
+	if intervalS, ok := os.LookupEnv("MAIN_INTERVAL_DURATION"); !ok {
+	} else if v, err := time.ParseDuration(intervalS); err != nil {
+		panic(err)
+	} else {
+		interval = v
+	}
+	c := time.NewTicker(interval)
 	defer c.Stop()
 
 	block := func() bool {