diff --git a/cmd/proxy/main.go b/cmd/proxy/main.go
index 80cbe62..0efb456 100644
--- a/cmd/proxy/main.go
+++ b/cmd/proxy/main.go
@@ -18,7 +18,14 @@ const svcName = "proxy"
 func main() {
 	g, ctx := errgroup.WithContext(context.Background())
 
-	logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
+	var level slog.Level
+	if err := level.UnmarshalText([]byte("info")); err != nil {
+		log.Fatalf("failed to parse log level: %s", err.Error())
+	}
+	logHandler := slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
+		Level: level,
+	})
+	logger := slog.New(logHandler)
 	slog.SetDefault(logger)
 
 	mqttCfg := config.MQTTProxyConfig{}
@@ -26,23 +33,11 @@ func main() {
 		log.Fatalf("failed to load mqtt config : %s", err.Error())
 	}
 
-	if err := mqttCfg.Validate(); err != nil {
-		log.Fatalf("failed to validate mqtt config : %s", err.Error())
-
-		return
-	}
-
 	httpCfg := config.HTTPProxyConfig{}
 	if err := env.Parse(&httpCfg); err != nil {
 		log.Fatalf("failed to load http config : %s", err.Error())
 	}
 
-	if err := httpCfg.Validate(); err != nil {
-		log.Fatalf("failed to validate http config : %s", err.Error())
-
-		return
-	}
-
 	logger.Info("successfully initialized MQTT and HTTP config")
 
 	service, err := proxy.NewService(ctx, &mqttCfg, &httpCfg, logger)
diff --git a/proxy/config/http.go b/proxy/config/http.go
index a17a404..8b9901c 100644
--- a/proxy/config/http.go
+++ b/proxy/config/http.go
@@ -7,7 +7,6 @@ import (
 	"fmt"
 	"io"
 	"log"
-	"net/url"
 
 	"github.com/absmach/propeller/proplet"
 	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
@@ -22,36 +21,12 @@ const (
 )
 
 type HTTPProxyConfig struct {
-	RegistryURL  string `env:"PROXY_REGISTRY_URL"      envDefault:""`
-	ChunkSize    int    `env:"PROXY_CHUNK_SIZE"        envDefault:"512000"`
-	Authenticate bool   `env:"PROXY_AUTHENTICATE"      envDefault:"false"`
-	Token        string `env:"PROXY_REGISTRY_TOKEN"    envDefault:""`
-	Username     string `env:"PROXY_REGISTRY_USERNAME" envDefault:""`
-	Password     string `env:"PROXY_REGISTRY_PASSWORD" envDefault:""`
-}
-
-func (c *HTTPProxyConfig) Validate() error {
-	if c.RegistryURL == "" {
-		return errors.New("broker_url is required")
-	}
-	if _, err := url.Parse(c.RegistryURL); err != nil {
-		return fmt.Errorf("broker_url is not a valid URL: %w", err)
-	}
-
-	if c.Authenticate {
-		hasToken := c.Token != ""
-		hasCredentials := c.Username != "" && c.Password != ""
-
-		if !hasToken && !hasCredentials {
-			return errors.New("either PAT or username/password must be provided when authentication is enabled")
-		}
-
-		if hasToken && c.Username == "" {
-			return errors.New("username is required when using PAT authentication")
-		}
-	}
-
-	return nil
+	RegistryURL  string `env:"PROXY_REGISTRY_URL,notEmpty" envDefault:""`
+	ChunkSize    int    `env:"PROXY_CHUNK_SIZE"            envDefault:"512000"`
+	Authenticate bool   `env:"PROXY_AUTHENTICATE"          envDefault:"false"`
+	Token        string `env:"PROXY_REGISTRY_TOKEN"        envDefault:""`
+	Username     string `env:"PROXY_REGISTRY_USERNAME"     envDefault:""`
+	Password     string `env:"PROXY_REGISTRY_PASSWORD"     envDefault:""`
 }
 
 func (c *HTTPProxyConfig) setupAuthentication(repo *remote.Repository) {
diff --git a/proxy/config/mqtt.go b/proxy/config/mqtt.go
index 9db9e36..30031aa 100644
--- a/proxy/config/mqtt.go
+++ b/proxy/config/mqtt.go
@@ -1,34 +1,8 @@
 package config
 
-import (
-	"errors"
-	"fmt"
-	"net/url"
-)
-
 type MQTTProxyConfig struct {
-	BrokerURL string `env:"PROXY_MQTT_ADDRESS" envDefault:"tcp://localhost:1883"`
-	Password  string `env:"PROXY_PROPLET_KEY"  envDefault:""`
-	PropletID string `env:"PROXY_PROPLET_ID"   envDefault:""`
-	ChannelID string `env:"PROXY_CHANNEL_ID"   envDefault:""`
-}
-
-func (c *MQTTProxyConfig) Validate() error {
-	if c.BrokerURL == "" {
-		return errors.New("broker_url is required")
-	}
-	if _, err := url.Parse(c.BrokerURL); err != nil {
-		return fmt.Errorf("broker_url is not a valid URL: %w", err)
-	}
-	if c.Password == "" {
-		return errors.New("password is required")
-	}
-	if c.PropletID == "" {
-		return errors.New("proplet_id is required")
-	}
-	if c.ChannelID == "" {
-		return errors.New("channel_id is required")
-	}
-
-	return nil
+	BrokerURL string `env:"PROXY_MQTT_ADDRESS"         envDefault:"tcp://localhost:1883"`
+	Password  string `env:"PROXY_PROPLET_KEY,notEmpty" envDefault:""`
+	PropletID string `env:"PROXY_PROPLET_ID,notEmpty"  envDefault:""`
+	ChannelID string `env:"PROXY_CHANNEL_ID,notEmpty"  envDefault:""`
 }