diff --git a/cmd/ev/main.go b/cmd/ev/main.go
index b1117e8..27f56d4 100644
--- a/cmd/ev/main.go
+++ b/cmd/ev/main.go
@@ -4,10 +4,13 @@ import (
 	"context"
 	"errors"
 	"log"
+	"log/slog"
 	"net/http"
 	"os"
 	"os/signal"
+	"strconv"
 
+	"go.sour.is/pkg/env"
 	"go.sour.is/pkg/lg"
 	"go.sour.is/pkg/service"
 )
@@ -27,6 +30,13 @@ func main() {
 	}
 }
 func run(ctx context.Context) error {
+	// TODO: make this configurable.
+	level := slog.LevelError
+	if ok, _ := strconv.ParseBool(env.Default("LOG_DEBUG", "FALSE")); ok {
+		level = slog.LevelDebug
+	}
+	slog.SetDefault(slog.New(slog.NewTextHandler(os.Stdout, &slog.HandlerOptions{Level: level})))
+
 	svc := &service.Harness{}
 	ctx, stop := lg.Init(ctx, appName)
 	svc.OnStop(stop)