add missing return

models/drivers.go

@@ -15,6 +15,7 @@ func (d *Drivers) AddDriver(drv Driver) {
 	if driver, ok := (*d)[drv.Type]; ok {
 		driver.AddBuses(drv.Buses)
 		(*d)[drv.Type] = driver
+		return
 	}
 	(*d)[drv.Type] = &drv
 }

models/topic.go

@@ -4,7 +4,7 @@ import "slices"
 
 // topic model
 type Topic struct {
-	Publish   []string `json:"Publish,omitempty"`
+	Publish   []string `json:"publish,omitempty"`
 	Subscribe []string `json:"subscribe,omitempty"`
 }