diff --git a/internal/app/app.go b/internal/app/app.go
index 9dec2848..9331f041 100644
--- a/internal/app/app.go
+++ b/internal/app/app.go
@@ -1,29 +1,20 @@
 package app
 
 import (
-	"errors"
 	"flag"
 	"fmt"
 	"os"
 	"os/exec"
-	"path/filepath"
 	"runtime"
 	"runtime/debug"
-	"strings"
-
-	"github.com/AlexxIT/go2rtc/pkg/shell"
-	"github.com/AlexxIT/go2rtc/pkg/yaml"
-	"github.com/rs/zerolog"
-	"github.com/rs/zerolog/log"
 )
 
-var Version = "1.9.2"
-var UserAgent = "go2rtc/" + Version
-
-var ConfigPath string
-var Info = map[string]any{
-	"version": Version,
-}
+var (
+	Version    string
+	UserAgent  string
+	ConfigPath string
+	Info       = make(map[string]any)
+)
 
 const usage = `Usage of go2rtc:
 
@@ -33,12 +24,12 @@ const usage = `Usage of go2rtc:
 `
 
 func Init() {
-	var confs Config
+	var config flagConfig
 	var daemon bool
 	var version bool
 
-	flag.Var(&confs, "config", "")
-	flag.Var(&confs, "c", "")
+	flag.Var(&config, "config", "")
+	flag.Var(&config, "c", "")
 	flag.BoolVar(&daemon, "daemon", false, "")
 	flag.BoolVar(&daemon, "d", false, "")
 	flag.BoolVar(&version, "version", false, "")
@@ -69,118 +60,30 @@ func Init() {
 		// Re-run the program in background and exit
 		cmd := exec.Command(os.Args[0], args...)
 		if err := cmd.Start(); err != nil {
-			log.Fatal().Err(err).Send()
+			fmt.Println(err)
+			os.Exit(1)
 		}
 		fmt.Println("Running in daemon mode with PID:", cmd.Process.Pid)
 		os.Exit(0)
 	}
 
-	if confs == nil {
-		confs = []string{"go2rtc.yaml"}
-	}
-
-	for _, conf := range confs {
-		if len(conf) == 0 {
-			continue
-		}
-		if conf[0] == '{' {
-			// config as raw YAML or JSON
-			configs = append(configs, []byte(conf))
-		} else if data := parseConfString(conf); data != nil {
-			configs = append(configs, data)
-		} else {
-			// config as file
-			if ConfigPath == "" {
-				ConfigPath = conf
-			}
-
-			if data, _ = os.ReadFile(conf); data == nil {
-				continue
-			}
-
-			data = []byte(shell.ReplaceEnvVars(string(data)))
-			configs = append(configs, data)
-		}
-	}
-
-	if ConfigPath != "" {
-		if !filepath.IsAbs(ConfigPath) {
-			if cwd, err := os.Getwd(); err == nil {
-				ConfigPath = filepath.Join(cwd, ConfigPath)
-			}
-		}
-		Info["config_path"] = ConfigPath
-	}
+	UserAgent = "go2rtc/" + Version
 
+	Info["version"] = Version
 	Info["revision"] = revision
 
-	var cfg struct {
-		Mod map[string]string `yaml:"log"`
-	}
-
-	cfg.Mod = map[string]string{
-		"format": "", // useless, but anyway
-		"level":  "info",
-		"output": "stdout", // TODO: change to stderr someday
-		"time":   zerolog.TimeFormatUnixMs,
-	}
-
-	LoadConfig(&cfg)
-
-	log.Logger = NewLogger(cfg.Mod)
-
-	modules = cfg.Mod
+	initConfig(config)
+	initLogger()
 
 	platform := fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH)
-	log.Info().Str("version", Version).Str("platform", platform).Str("revision", revision).Msg("go2rtc")
-	log.Debug().Str("version", runtime.Version()).Str("vcs.time", vcsTime).Msg("build")
+	Logger.Info().Str("version", Version).Str("platform", platform).Str("revision", revision).Msg("go2rtc")
+	Logger.Debug().Str("version", runtime.Version()).Str("vcs.time", vcsTime).Msg("build")
 
 	if ConfigPath != "" {
-		log.Info().Str("path", ConfigPath).Msg("config")
-	}
-
-	migrateStore()
-}
-
-func LoadConfig(v any) {
-	for _, data := range configs {
-		if err := yaml.Unmarshal(data, v); err != nil {
-			log.Warn().Err(err).Msg("[app] read config")
-		}
+		Logger.Info().Str("path", ConfigPath).Msg("config")
 	}
 }
 
-func PatchConfig(key string, value any, path ...string) error {
-	if ConfigPath == "" {
-		return errors.New("config file disabled")
-	}
-
-	// empty config is OK
-	b, _ := os.ReadFile(ConfigPath)
-
-	b, err := yaml.Patch(b, key, value, path...)
-	if err != nil {
-		return err
-	}
-
-	return os.WriteFile(ConfigPath, b, 0644)
-}
-
-// internal
-
-type Config []string
-
-func (c *Config) String() string {
-	return strings.Join(*c, " ")
-}
-
-func (c *Config) Set(value string) error {
-	*c = append(*c, value)
-	return nil
-}
-
-var configs [][]byte
-
 func readRevisionTime() (revision, vcsTime string) {
 	if info, ok := debug.ReadBuildInfo(); ok {
 		for _, setting := range info.Settings {
@@ -202,25 +105,3 @@ func readRevisionTime() (revision, vcsTime string) {
 	}
 	return
 }
-
-func parseConfString(s string) []byte {
-	i := strings.IndexByte(s, '=')
-	if i < 0 {
-		return nil
-	}
-
-	items := strings.Split(s[:i], ".")
-	if len(items) < 2 {
-		return nil
-	}
-
-	// `log.level=trace` => `{log: {level: trace}}`
-	var pre string
-	var suf = s[i+1:]
-	for _, item := range items {
-		pre += "{" + item + ": "
-		suf += "}"
-	}
-
-	return []byte(pre + suf)
-}
diff --git a/internal/app/config.go b/internal/app/config.go
new file mode 100644
index 00000000..8ae6d460
--- /dev/null
+++ b/internal/app/config.go
@@ -0,0 +1,109 @@
+package app
+
+import (
+	"errors"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/AlexxIT/go2rtc/pkg/shell"
+	"github.com/AlexxIT/go2rtc/pkg/yaml"
+)
+
+func LoadConfig(v any) {
+	for _, data := range configs {
+		if err := yaml.Unmarshal(data, v); err != nil {
+			Logger.Warn().Err(err).Send()
+		}
+	}
+}
+
+func PatchConfig(key string, value any, path ...string) error {
+	if ConfigPath == "" {
+		return errors.New("config file disabled")
+	}
+
+	// empty config is OK
+	b, _ := os.ReadFile(ConfigPath)
+
+	b, err := yaml.Patch(b, key, value, path...)
+	if err != nil {
+		return err
+	}
+
+	return os.WriteFile(ConfigPath, b, 0644)
+}
+
+type flagConfig []string
+
+func (c *flagConfig) String() string {
+	return strings.Join(*c, " ")
+}
+
+func (c *flagConfig) Set(value string) error {
+	*c = append(*c, value)
+	return nil
+}
+
+var configs [][]byte
+
+func initConfig(confs flagConfig) {
+	if confs == nil {
+		confs = []string{"go2rtc.yaml"}
+	}
+
+	for _, conf := range confs {
+		if len(conf) == 0 {
+			continue
+		}
+		if conf[0] == '{' {
+			// config as raw YAML or JSON
+			configs = append(configs, []byte(conf))
+		} else if data := parseConfString(conf); data != nil {
+			configs = append(configs, data)
+		} else {
+			// config as file
+			if ConfigPath == "" {
+				ConfigPath = conf
+			}
+
+			if data, _ = os.ReadFile(conf); data == nil {
+				continue
+			}
+
+			data = []byte(shell.ReplaceEnvVars(string(data)))
+			configs = append(configs, data)
+		}
+	}
+
+	if ConfigPath != "" {
+		if !filepath.IsAbs(ConfigPath) {
+			if cwd, err := os.Getwd(); err == nil {
+				ConfigPath = filepath.Join(cwd, ConfigPath)
+			}
+		}
+		Info["config_path"] = ConfigPath
+	}
+}
+
+func parseConfString(s string) []byte {
+	i := strings.IndexByte(s, '=')
+	if i < 0 {
+		return nil
+	}
+
+	items := strings.Split(s[:i], ".")
+	if len(items) < 2 {
+		return nil
+	}
+
+	// `log.level=trace` => `{log: {level: trace}}`
+	var pre string
+	var suf = s[i+1:]
+	for _, item := range items {
+		pre += "{" + item + ": "
+		suf += "}"
+	}
+
+	return []byte(pre + suf)
+}
diff --git a/internal/app/log.go b/internal/app/log.go
index 222f6f2b..094dfbbf 100644
--- a/internal/app/log.go
+++ b/internal/app/log.go
@@ -6,30 +6,49 @@ import (
 
 	"github.com/mattn/go-isatty"
 	"github.com/rs/zerolog"
-	"github.com/rs/zerolog/log"
 )
 
 var MemoryLog = newBuffer(16)
 
-// NewLogger support:
+func GetLogger(module string) zerolog.Logger {
+	if s, ok := modules[module]; ok {
+		lvl, err := zerolog.ParseLevel(s)
+		if err == nil {
+			return Logger.Level(lvl)
+		}
+		Logger.Warn().Err(err).Caller().Send()
+	}
+
+	return Logger
+}
+
+// initLogger support:
 // - output: empty (only to memory), stderr, stdout
 // - format: empty (autodetect color support), color, json, text
 // - time:   empty (disable timestamp), UNIXMS, UNIXMICRO, UNIXNANO
 // - level:  disabled, trace, debug, info, warn, error...
-func NewLogger(config map[string]string) zerolog.Logger {
+func initLogger() {
+	var cfg struct {
+		Mod map[string]string `yaml:"log"`
+	}
+
+	cfg.Mod = modules // defaults
+
+	LoadConfig(&cfg)
+
 	var writer io.Writer
 
-	switch config["output"] {
+	switch modules["output"] {
 	case "stderr":
 		writer = os.Stderr
 	case "stdout":
 		writer = os.Stdout
 	}
 
-	timeFormat := config["time"]
+	timeFormat := modules["time"]
 
 	if writer != nil {
-		if format := config["format"]; format != "json" {
+		if format := modules["format"]; format != "json" {
 			console := &zerolog.ConsoleWriter{Out: writer}
 
 			switch format {
@@ -61,31 +80,24 @@ func NewLogger(config map[string]string) zerolog.Logger {
 		writer = MemoryLog
 	}
 
-	logger := zerolog.New(writer)
+	lvl, _ := zerolog.ParseLevel(modules["level"])
+	Logger = zerolog.New(writer).Level(lvl)
 
 	if timeFormat != "" {
 		zerolog.TimeFieldFormat = timeFormat
-		logger = logger.With().Timestamp().Logger()
+		Logger = Logger.With().Timestamp().Logger()
 	}
-
-	lvl, _ := zerolog.ParseLevel(config["level"])
-	return logger.Level(lvl)
 }
 
-func GetLogger(module string) zerolog.Logger {
-	if s, ok := modules[module]; ok {
-		lvl, err := zerolog.ParseLevel(s)
-		if err == nil {
-			return log.Level(lvl)
-		}
-		log.Warn().Err(err).Caller().Send()
-	}
-
-	return log.Logger
-}
+var Logger zerolog.Logger
 
 // modules log levels
-var modules map[string]string
+var modules = map[string]string{
+	"format": "", // useless, but anyway
+	"level":  "info",
+	"output": "stdout", // TODO: change to stderr someday
+	"time":   zerolog.TimeFormatUnixMs,
+}
 
 const chunkSize = 1 << 16
 
diff --git a/internal/app/migrate.go b/internal/app/migrate.go
deleted file mode 100644
index 95c51c51..00000000
--- a/internal/app/migrate.go
+++ /dev/null
@@ -1,35 +0,0 @@
-package app
-
-import (
-	"encoding/json"
-	"os"
-
-	"github.com/rs/zerolog/log"
-)
-
-func migrateStore() {
-	const name = "go2rtc.json"
-
-	data, _ := os.ReadFile(name)
-	if data == nil {
-		return
-	}
-
-	var store struct {
-		Streams map[string]string `json:"streams"`
-	}
-
-	if err := json.Unmarshal(data, &store); err != nil {
-		log.Warn().Err(err).Caller().Send()
-		return
-	}
-
-	for id, url := range store.Streams {
-		if err := PatchConfig(id, url, "streams"); err != nil {
-			log.Warn().Err(err).Caller().Send()
-			return
-		}
-	}
-
-	_ = os.Remove(name)
-}
diff --git a/internal/dvrip/dvrip.go b/internal/dvrip/dvrip.go
index 470e8afd..095372d2 100644
--- a/internal/dvrip/dvrip.go
+++ b/internal/dvrip/dvrip.go
@@ -12,7 +12,6 @@ import (
 	"github.com/AlexxIT/go2rtc/internal/streams"
 	"github.com/AlexxIT/go2rtc/pkg/core"
 	"github.com/AlexxIT/go2rtc/pkg/dvrip"
-	"github.com/rs/zerolog/log"
 )
 
 func Init() {
@@ -92,10 +91,7 @@ func sendBroadcasts(conn *net.UDPConn) {
 
 	for i := 0; i < 3; i++ {
 		time.Sleep(100 * time.Millisecond)
-
-		if _, err = conn.WriteToUDP(data, addr); err != nil {
-			log.Err(err).Caller().Send()
-		}
+		_, _ = conn.WriteToUDP(data, addr)
 	}
 }
 
diff --git a/internal/ffmpeg/ffmpeg.go b/internal/ffmpeg/ffmpeg.go
index aeba85fb..062e5aaf 100644
--- a/internal/ffmpeg/ffmpeg.go
+++ b/internal/ffmpeg/ffmpeg.go
@@ -14,6 +14,7 @@ import (
 	"github.com/AlexxIT/go2rtc/internal/streams"
 	"github.com/AlexxIT/go2rtc/pkg/core"
 	"github.com/AlexxIT/go2rtc/pkg/ffmpeg"
+	"github.com/rs/zerolog"
 )
 
 func Init() {
@@ -29,6 +30,8 @@ func Init() {
 
 	app.LoadConfig(&cfg)
 
+	log = app.GetLogger("ffmpeg")
+
 	// zerolog levels: trace debug         info warn    error fatal panic disabled
 	// FFmpeg  levels: trace debug verbose info warning error fatal panic quiet
 	if cfg.Log.Level == "warn" {
@@ -145,6 +148,8 @@ var defaults = map[string]string{
 	"h265/videotoolbox": "-c:v hevc_videotoolbox -g 50 -bf 0 -profile:v main -level:v 5.1",
 }
 
+var log zerolog.Logger
+
 // configTemplate - return template from config (defaults) if exist or return raw template
 func configTemplate(template string) string {
 	if s := defaults[template]; s != "" {
diff --git a/internal/ffmpeg/hardware/hardware.go b/internal/ffmpeg/hardware/hardware.go
index ebbdc4fa..39ce3323 100644
--- a/internal/ffmpeg/hardware/hardware.go
+++ b/internal/ffmpeg/hardware/hardware.go
@@ -7,8 +7,6 @@ import (
 
 	"github.com/AlexxIT/go2rtc/internal/api"
 	"github.com/AlexxIT/go2rtc/pkg/ffmpeg"
-
-	"github.com/rs/zerolog/log"
 )
 
 const (
@@ -152,7 +150,6 @@ var cache = map[string]string{}
 
 func run(bin string, args string) bool {
 	err := exec.Command(bin, strings.Split(args, " ")...).Run()
-	log.Printf("%v %v", args, err)
 	return err == nil
 }
 
diff --git a/internal/ffmpeg/version.go b/internal/ffmpeg/version.go
index 976c92d0..717e08a4 100644
--- a/internal/ffmpeg/version.go
+++ b/internal/ffmpeg/version.go
@@ -6,7 +6,6 @@ import (
 	"sync"
 
 	"github.com/AlexxIT/go2rtc/pkg/ffmpeg"
-	"github.com/rs/zerolog/log"
 )
 
 var verMu sync.Mutex
diff --git a/internal/mjpeg/init.go b/internal/mjpeg/init.go
index ea65e2d7..0bed95c6 100644
--- a/internal/mjpeg/init.go
+++ b/internal/mjpeg/init.go
@@ -10,6 +10,7 @@ import (
 
 	"github.com/AlexxIT/go2rtc/internal/api"
 	"github.com/AlexxIT/go2rtc/internal/api/ws"
+	"github.com/AlexxIT/go2rtc/internal/app"
 	"github.com/AlexxIT/go2rtc/internal/ffmpeg"
 	"github.com/AlexxIT/go2rtc/internal/streams"
 	"github.com/AlexxIT/go2rtc/pkg/ascii"
@@ -18,7 +19,7 @@ import (
 	"github.com/AlexxIT/go2rtc/pkg/mjpeg"
 	"github.com/AlexxIT/go2rtc/pkg/tcp"
 	"github.com/AlexxIT/go2rtc/pkg/y4m"
-	"github.com/rs/zerolog/log"
+	"github.com/rs/zerolog"
 )
 
 func Init() {
@@ -28,8 +29,12 @@ func Init() {
 	api.HandleFunc("api/stream.y4m", apiStreamY4M)
 
 	ws.HandleFunc("mjpeg", handlerWS)
+
+	log = app.GetLogger("mjpeg")
 }
 
+var log zerolog.Logger
+
 func handlerKeyframe(w http.ResponseWriter, r *http.Request) {
 	src := r.URL.Query().Get("src")
 	stream := streams.Get(src)
diff --git a/internal/mpegts/aac.go b/internal/mpegts/aac.go
index 3008a658..867dc971 100644
--- a/internal/mpegts/aac.go
+++ b/internal/mpegts/aac.go
@@ -7,7 +7,6 @@ import (
 	"github.com/AlexxIT/go2rtc/internal/streams"
 	"github.com/AlexxIT/go2rtc/pkg/aac"
 	"github.com/AlexxIT/go2rtc/pkg/tcp"
-	"github.com/rs/zerolog/log"
 )
 
 func apiStreamAAC(w http.ResponseWriter, r *http.Request) {
@@ -23,7 +22,6 @@ func apiStreamAAC(w http.ResponseWriter, r *http.Request) {
 	cons.UserAgent = r.UserAgent()
 
 	if err := stream.AddConsumer(cons); err != nil {
-		log.Error().Err(err).Caller().Send()
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
diff --git a/internal/mpegts/mpegts.go b/internal/mpegts/mpegts.go
index 6f4f6ab2..6ef00ba1 100644
--- a/internal/mpegts/mpegts.go
+++ b/internal/mpegts/mpegts.go
@@ -7,7 +7,6 @@ import (
 	"github.com/AlexxIT/go2rtc/internal/streams"
 	"github.com/AlexxIT/go2rtc/pkg/mpegts"
 	"github.com/AlexxIT/go2rtc/pkg/tcp"
-	"github.com/rs/zerolog/log"
 )
 
 func Init() {
@@ -36,7 +35,6 @@ func outputMpegTS(w http.ResponseWriter, r *http.Request) {
 	cons.UserAgent = r.UserAgent()
 
 	if err := stream.AddConsumer(cons); err != nil {
-		log.Error().Err(err).Caller().Send()
 		http.Error(w, err.Error(), http.StatusInternalServerError)
 		return
 	}
diff --git a/main.go b/main.go
index 91bc9938..27490f6a 100644
--- a/main.go
+++ b/main.go
@@ -36,6 +36,8 @@ import (
 )
 
 func main() {
+	app.Version = "1.9.2"
+
 	// 1. Core modules: app, api/ws, streams
 
 	app.Init() // init config and logs
diff --git a/pkg/opus/opus.go b/pkg/opus/.opus.go
similarity index 97%
rename from pkg/opus/opus.go
rename to pkg/opus/.opus.go
index 9fe1d8b6..42043977 100644
--- a/pkg/opus/opus.go
+++ b/pkg/opus/.opus.go
@@ -5,7 +5,6 @@ import (
 
 	"github.com/AlexxIT/go2rtc/pkg/core"
 	"github.com/pion/rtp"
-	"github.com/rs/zerolog/log"
 )
 
 func Log(handler core.HandlerFunc) core.HandlerFunc {
diff --git a/pkg/roborock/client.go b/pkg/roborock/client.go
index 39caab88..6a3bf0e0 100644
--- a/pkg/roborock/client.go
+++ b/pkg/roborock/client.go
@@ -6,7 +6,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"log"
 	"net/rpc"
 	"net/url"
 	"strconv"
@@ -138,7 +137,7 @@ func (c *Client) Connect() error {
 	}
 
 	offer := pc.LocalDescription()
-	log.Printf("[roborock] offer\n%s", offer.SDP)
+	//log.Printf("[roborock] offer\n%s", offer.SDP)
 	if err = c.SendSDPtoRobot(offer); err != nil {
 		return err
 	}
@@ -151,7 +150,7 @@ func (c *Client) Connect() error {
 		time.Sleep(time.Second)
 
 		if desc, _ := c.GetDeviceSDP(); desc != nil {
-			log.Printf("[roborock] answer\n%s", desc.SDP)
+			//log.Printf("[roborock] answer\n%s", desc.SDP)
 			if err = c.conn.SetAnswer(desc.SDP); err != nil {
 				return err
 			}
diff --git a/pkg/roborock/iot/client.go b/pkg/roborock/iot/client.go
index 8773455d..c3b2d97f 100644
--- a/pkg/roborock/iot/client.go
+++ b/pkg/roborock/iot/client.go
@@ -6,12 +6,12 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
-	"github.com/AlexxIT/go2rtc/pkg/mqtt"
-	"github.com/rs/zerolog/log"
 	"net"
 	"net/rpc"
 	"net/url"
 	"time"
+
+	"github.com/AlexxIT/go2rtc/pkg/mqtt"
 )
 
 type Codec struct {
@@ -56,7 +56,7 @@ func (c *Codec) WriteRequest(r *rpc.Request, v any) error {
 		return err
 	}
 
-	log.Printf("[roborock] send: %s", payload)
+	//log.Printf("[roborock] send: %s", payload)
 
 	payload = c.Encrypt(payload, ts, ts, ts)
 
@@ -86,7 +86,7 @@ func (c *Codec) ReadResponseHeader(r *rpc.Response) error {
 			continue
 		}
 
-		log.Printf("[roborock] recv %s", payload)
+		//log.Printf("[roborock] recv %s", payload)
 
 		// get content from response payload:
 		// {"t":1676871268,"dps":{"102":"{\"id\":315003,\"result\":[\"ok\"]}"}}