diff --git a/internal/tui/config.go b/internal/tui/config.go
index e6022ed..308a9b5 100644
--- a/internal/tui/config.go
+++ b/internal/tui/config.go
@@ -46,7 +46,7 @@ func GenerateConfigTOML(cv ConfigValues) (string, error) {
 	// [log] — hardcoded defaults
 	sb.WriteString("[log]\n")
 	sb.WriteString("level = \"debug\"\n")
-	sb.WriteString("format = \"text\" # Options: \"json\" or \"text\"\n")
+	sb.WriteString("format = \"json\" # Options: \"json\" or \"text\"\n")
 
 	return sb.String(), nil
 }
diff --git a/internal/tui/docker.go b/internal/tui/docker.go
index 574f2b3..cfc2d31 100644
--- a/internal/tui/docker.go
+++ b/internal/tui/docker.go
@@ -3,11 +3,14 @@ package tui
 import (
 	"fmt"
 	"os/exec"
+	"os/user"
 	"path/filepath"
 	"strings"
 	"time"
 )
 
+const networkName = "app-dono_app"
+
 func RunContainer(image string, name string, port int) error {
 
 	cmd := exec.Command(
@@ -45,11 +48,28 @@ func PushFileToContainer(container, filePath, destinationPath string) bool {
 	return err == nil
 }
 
+func EnsureNetwork(name string) error {
+	cmd := exec.Command("docker", "network", "inspect", name)
+	if err := cmd.Run(); err == nil {
+		return nil
+	}
+	cmd = exec.Command("docker", "network", "create", name)
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("erro ao criar network %s: %w\noutput", name, err, string(out))
+	}
+	return nil
+}
+
 func RunWireguardDockerContainer(envFilePath string, cv ConfigValues) error {
 	containerName := "vproxy"
 
 	removeExistingContainer(containerName)
 
+	if err := EnsureNetwork(networkName); err != nil {
+		return err
+	}
+
 	absPath, err := filepath.Abs(envFilePath)
 	if err != nil {
 		return fmt.Errorf("erro ao resolver caminho absoluto: %w", err)
@@ -58,7 +78,7 @@ func RunWireguardDockerContainer(envFilePath string, cv ConfigValues) error {
 	cmd := exec.Command(
 		"docker", "run", "-it", "-d",
 		"--name", containerName,
-		"--network", "app-dono_app",
+		"--network", networkName,
 		"--restart", "unless-stopped",
 		"--cap-add=NET_ADMIN",
 		"--device", "/dev/net/tun:/dev/net/tun",
@@ -81,13 +101,24 @@ func RunWireguardDockerContainer(envFilePath string, cv ConfigValues) error {
 func RunAppClienteContainer(image, containerName, configPath, configDestinationPath string, cv ConfigValues) error {
 	removeExistingContainer(containerName)
 
+	if err := EnsureNetwork(networkName); err != nil {
+		return err
+	}
+
 	absPath, err := filepath.Abs(configPath)
 	if err != nil {
 		return fmt.Errorf("erro ao resolver caminho absoluto: %w", err)
 	}
 
+	currentUser, err := user.Current()
+	if err != nil {
+		return err
+	}
+	uidGid := fmt.Sprintf("%s:%s", currentUser.Uid, currentUser.Gid)
+
 	cmd := exec.Command(
 		"docker", "run", "-d",
+		"-u", uidGid,
 		"-p", fmt.Sprintf("%s:8080", cv.Server["port"]),
 		"--name", containerName,
 		"--network", "app-dono_app",
diff --git a/internal/tui/model.go b/internal/tui/model.go
index e3db2f4..9ee78a0 100644
--- a/internal/tui/model.go
+++ b/internal/tui/model.go
@@ -228,7 +228,7 @@ func InitialModel() Model {
 			{
 				Id:          "central_server_url",
 				Label:       "URL do Servidor Central",
-				Placeholder: "https://servidor:8443",
+				Placeholder: "https://app-dono-api.vitruvio.com.br:8443",
 				Default:     cfg.Application.CentralServerURL,
 				Type:        FieldTypeText,
 			},