diff --git a/internal/extension-registry/get.go b/internal/extension-registry/get.go
index c5df822..1401351 100644
--- a/internal/extension-registry/get.go
+++ b/internal/extension-registry/get.go
@@ -1,6 +1,7 @@
 package extregistry
 
 import (
+	"log/slog"
 	"net/http"
 	"net/url"
 	"os"
@@ -13,16 +14,21 @@ import (
 
 // GetAppVersion will get the app and version from registry
 func GetAppVersion(app string, version string) (*App, *Version, error) {
+	slog.Debug("GetAppVersion", "app", app, "version", version)
 	a, err := GetApp(app)
 	if err != nil {
 		return nil, nil, ee.Wrapf(err, "cannot get app %s from registry", app)
 	}
+	slog.Debug("GetApp", "app", app, "parsed", a)
 
 	if realVersion := a.Tags[version]; realVersion != "" {
+		slog.Debug("map tag version", "previous", version, "to", realVersion)
+
 		version = realVersion
 	}
 
 	v, err := a.parseVersion(version)
+	slog.Debug("parse version", "version", version, "parsed", v)
 	if err != nil {
 		if ee.Is(err, ErrVersionNotExist) {
 			v := &Version{
diff --git a/internal/extension-registry/install.go b/internal/extension-registry/install.go
index 28bac82..c2ab70e 100644
--- a/internal/extension-registry/install.go
+++ b/internal/extension-registry/install.go
@@ -2,6 +2,7 @@ package extregistry
 
 import (
 	"fmt"
+	"log/slog"
 
 	"github.com/ImSingee/go-ex/ee"
 	"github.com/ImSingee/go-ex/pp"
@@ -14,6 +15,7 @@ import (
 )
 
 func (a *App) installUnknownVersionTo(version string, dst string) error {
+	slog.Debug("app installUnknownVersionTo", "version", version, "dst", dst)
 	o := &installer.InstallOptions{
 		Version:      version,
 		To:           dst,
@@ -33,10 +35,12 @@ func (a *App) installUnknownVersionTo(version string, dst string) error {
 }
 
 func (v *Version) InstallUnknownVersionTo(dst string) error {
+	slog.Debug("version installUnknownVersionTo", "dst", dst)
 	return v.App.installUnknownVersionTo(v.Version, dst)
 }
 
 func (v *Version) InstallTo(dst string) error {
+	slog.Debug("version InstallTo", "version", v, "dst", dst)
 	o := &installer.InstallOptions{
 		Version:      v.Version,
 		To:           dst,
diff --git a/internal/extension-registry/parser.go b/internal/extension-registry/parser.go
index 1a1d120..8641c78 100644
--- a/internal/extension-registry/parser.go
+++ b/internal/extension-registry/parser.go
@@ -2,6 +2,7 @@ package extregistry
 
 import (
 	"fmt"
+	"log/slog"
 	"strings"
 
 	"github.com/ImSingee/go-ex/ee"
@@ -10,6 +11,8 @@ import (
 )
 
 func parseApp(name string, in eroptions.AnyOptions) (*App, error) {
+	slog.Debug("parseApp", "in", in)
+
 	a := &App{
 		Name: name,
 	}
@@ -48,6 +51,8 @@ func parseApp(name string, in eroptions.AnyOptions) (*App, error) {
 		parsedVersions := make(map[string]eroptions.AnyOptions, len(versions))
 
 		for version, v := range versions {
+			slog.Debug("parseVersion", "in", v)
+
 			v, ok := v.(map[string]any)
 			if !ok {
 				parsedVersions[version] = eroptions.AsAnyOptions(map[string]any{
@@ -57,6 +62,8 @@ func parseApp(name string, in eroptions.AnyOptions) (*App, error) {
 				parsedVersions[version] = eroptions.AsAnyOptions(v)
 			}
 		}
+
+		a.Versions = parsedVersions
 	}
 
 	installOptions := eroptions.AnyOptions{}
@@ -67,6 +74,8 @@ func parseApp(name string, in eroptions.AnyOptions) (*App, error) {
 	}
 	a.InstallOptions = installOptions
 
+	slog.Debug("parseApp", "parsed", a)
+
 	return a, nil
 }