diff --git a/app/app.go b/app/app.go
index b2afbf75c..f2b4f0d56 100644
--- a/app/app.go
+++ b/app/app.go
@@ -60,7 +60,7 @@ func RunWarp(ctx context.Context, l *slog.Logger, opts WarpOptions) error {
 	endpoints := []string{opts.Endpoint, opts.Endpoint}
 
 	if opts.Scan != nil {
-		res, err := wiresocks.RunScan(ctx, *opts.Scan)
+		res, err := wiresocks.RunScan(ctx, l, *opts.Scan)
 		if err != nil {
 			return err
 		}
diff --git a/example_config.json b/example_config.json
new file mode 100644
index 000000000..6d24f3da7
--- /dev/null
+++ b/example_config.json
@@ -0,0 +1,11 @@
+{
+  "verbose": false,
+  "bind": "127.0.0.1:8086",
+  "endpoint": "",
+  "key": "",
+  "gool": false,
+  "cfon": false,
+  "country": "DE",
+  "scan": true,
+  "rtt": "1000ms"
+}
diff --git a/ipscanner/internal/engine/engine.go b/ipscanner/internal/engine/engine.go
index bac9dceb3..3af6ab600 100644
--- a/ipscanner/internal/engine/engine.go
+++ b/ipscanner/internal/engine/engine.go
@@ -28,7 +28,7 @@ func NewScannerEngine(opts *statute.ScannerOptions) *Engine {
 		ipQueue:   queue,
 		ping:      p.DoPing,
 		generator: iterator.NewIterator(opts),
-		log:       opts.Logger.With(slog.String("subsystem", "engine")),
+		log:       opts.Logger.With(slog.String("subsystem", "scanner/engine")),
 	}
 }
 
diff --git a/main.go b/main.go
index fa8b3500a..9e6cf8390 100644
--- a/main.go
+++ b/main.go
@@ -19,6 +19,7 @@ import (
 
 	"github.com/peterbourgon/ff/v4"
 	"github.com/peterbourgon/ff/v4/ffhelp"
+	"github.com/peterbourgon/ff/v4/ffjson"
 )
 
 var psiphonCountries = []string{
@@ -66,12 +67,17 @@ func main() {
 		gool     = fs.BoolLong("gool", "enable gool mode (warp in warp)")
 		psiphon  = fs.BoolLong("cfon", "enable psiphon mode (must provide country as well)")
 		country  = fs.StringEnumLong("country", fmt.Sprintf("psiphon country code (valid values: %s)", psiphonCountries), psiphonCountries...)
-		scan     = fs.BoolLong("scan", "enable warp scanning (experimental)")
+		scan     = fs.BoolLong("scan", "enable warp scanning")
 		rtt      = fs.DurationLong("rtt", 1000*time.Millisecond, "scanner rtt limit")
+		_        = fs.String('c', "config", "", "path to config file")
 	)
 
-	// Config file and envvars can be added through ff later
-	err := ff.Parse(fs, os.Args[1:])
+	err := ff.Parse(
+		fs,
+		os.Args[1:],
+		ff.WithConfigFileFlag("config"),
+		ff.WithConfigFileParser(ffjson.Parse),
+	)
 	switch {
 	case errors.Is(err, ff.ErrHelp):
 		fmt.Fprintf(os.Stderr, "%s\n", ffhelp.Flags(fs))
diff --git a/wiresocks/scanner.go b/wiresocks/scanner.go
index 109f1908d..80e244696 100644
--- a/wiresocks/scanner.go
+++ b/wiresocks/scanner.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"log/slog"
 	"time"
 
 	"github.com/bepass-org/warp-plus/ipscanner"
@@ -17,7 +18,7 @@ type ScanOptions struct {
 	MaxRTT time.Duration
 }
 
-func RunScan(ctx context.Context, opts ScanOptions) (result []ipscanner.IPInfo, err error) {
+func RunScan(ctx context.Context, l *slog.Logger, opts ScanOptions) (result []ipscanner.IPInfo, err error) {
 	cfg, err := ini.Load("./primary/wgcf-profile.ini")
 	if err != nil {
 		return nil, fmt.Errorf("failed to read file: %w", err)
@@ -31,6 +32,7 @@ func RunScan(ctx context.Context, opts ScanOptions) (result []ipscanner.IPInfo,
 
 	// new scanner
 	scanner := ipscanner.NewScanner(
+		ipscanner.WithLogger(l.With(slog.String("subsystem", "scanner"))),
 		ipscanner.WithWarpPing(),
 		ipscanner.WithWarpPrivateKey(privateKey),
 		ipscanner.WithWarpPeerPublicKey(publicKey),