diff --git a/internal/luai/interfaces.go b/internal/luai/interfaces.go
index 259a3100..8b7b0a56 100644
--- a/internal/luai/interfaces.go
+++ b/internal/luai/interfaces.go
@@ -32,6 +32,10 @@ type PreUseHookCtx struct {
 	InstalledSdks   map[string]*LuaSDKInfo `luai:"installedSdks"`
 }
 
+type PreUseHookResult struct {
+	Version string `luai:"version"`
+}
+
 type PostInstallHookCtx struct {
 	RuntimeVersion string                 `luai:"runtimeVersion"`
 	RootPath       string                 `luai:"rootPath"`
@@ -44,3 +48,8 @@ type EnvKeysHookCtx struct {
 	Path    string                 `luai:"path"`
 	SdkInfo map[string]*LuaSDKInfo `luai:"sdkInfo"`
 }
+
+type EnvKeysHookResultItem struct {
+	Key   string `luai:"key"`
+	Value string `luai:"value"`
+}
diff --git a/internal/plugin.go b/internal/plugin.go
index 4e17c833..9c48a6c0 100644
--- a/internal/plugin.go
+++ b/internal/plugin.go
@@ -237,33 +237,22 @@ func (l *LuaPlugin) PreInstall(version Version) (*Package, error) {
 }
 
 func (l *LuaPlugin) parseInfo(table *lua.LTable) (*Info, error) {
-	versionLua := table.RawGetString("version")
-	if versionLua == lua.LNil {
-		return nil, fmt.Errorf("no version number provided")
+	info := &luai.LuaSDKInfo{}
+	err := luai.Unmarshal(table, info)
+	if err != nil {
+		return nil, err
 	}
-	var (
-		path    string
-		note    string
-		name    string
-		version string
-	)
-	version = versionLua.String()
 
-	if urlLua := table.RawGetString("url"); urlLua != lua.LNil {
-		path = urlLua.String()
-	}
-	if noteLua := table.RawGetString("note"); noteLua != lua.LNil {
-		note = noteLua.String()
-	}
-	if nameLua := table.RawGetString("name"); nameLua != lua.LNil {
-		name = nameLua.String()
+	if info.Version == "" {
+		return nil, fmt.Errorf("no version number provided")
 	}
+
 	checksum := l.Checksum(table)
 	return &Info{
-		Name:     name,
-		Version:  Version(version),
-		Path:     path,
-		Note:     note,
+		Name:     info.Name,
+		Version:  Version(info.Version),
+		Path:     info.Path,
+		Note:     info.Name,
 		Checksum: checksum,
 	}, nil
 }
@@ -327,18 +316,19 @@ func (l *LuaPlugin) EnvKeys(sdkPackage *Package) (env.Envs, error) {
 	if table == nil || table.Type() == lua.LTNil || table.Len() == 0 {
 		return nil, fmt.Errorf("no environment variables provided")
 	}
+
 	envKeys := make(env.Envs)
-	table.ForEach(func(key lua.LValue, value lua.LValue) {
-		kvTable, ok := value.(*lua.LTable)
-		if !ok {
-			err = fmt.Errorf("the return value is not a table")
-			return
-		}
-		key = kvTable.RawGetString("key")
-		value = kvTable.RawGetString("value")
-		s := value.String()
-		envKeys[key.String()] = &s
-	})
+
+	items := []*luai.EnvKeysHookResultItem{}
+	err = luai.Unmarshal(table, &items)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, item := range items {
+		envKeys[item.Key] = &item.Value
+	}
+
 	if err != nil {
 		return nil, err
 	}
@@ -392,13 +382,13 @@ func (l *LuaPlugin) PreUse(version Version, previousVersion Version, scope UseSc
 		return "", nil
 	}
 
-	luaVer := l.vm.GetTableString(table, "version")
-	if luaVer == "" {
-		// ignore version field not found
-		return "", nil
+	result := &luai.PreUseHookResult{}
+
+	if err := luai.Unmarshal(table, result); err != nil {
+		return "", err
 	}
 
-	return Version(luaVer), nil
+	return Version(result.Version), nil
 }
 
 func NewLuaPlugin(content, path string, manager *Manager) (*LuaPlugin, error) {
diff --git a/internal/plugin_test.go b/internal/plugin_test.go
index 79aca6c7..1c2487bb 100644
--- a/internal/plugin_test.go
+++ b/internal/plugin_test.go
@@ -1,6 +1,7 @@
 package internal
 
 import (
+	"strings"
 	"testing"
 
 	_ "embed"
@@ -28,6 +29,48 @@ func TestPlugin(t *testing.T) {
 		}
 	})
 
+	t.Run("EnvKeys", func(t *testing.T) {
+		manager := NewSdkManager()
+
+		plugin, err := NewLuaPlugin(pluginContent, pluginPath, manager)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		keys, err := plugin.EnvKeys(&Package{
+			Main: &Info{
+				Name:    "java",
+				Version: "1.0.0",
+				Path:    "/path/to/java",
+				Note:    "xxxx",
+			},
+			Additions: []*Info{
+				{
+					Name:    "sdk-name",
+					Version: "9.0.0",
+					Path:    "/path/to/sdk",
+					Note:    "xxxx",
+				},
+			},
+		})
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		javaHome := keys["JAVA_HOME"]
+		if *javaHome == "" {
+			t.Errorf("expected JAVA_HOME to be set, got '%s'", *javaHome)
+		}
+		path := keys["PATH"]
+		if *path == "" {
+			t.Errorf("expected PATH to be set, got '%s'", *path)
+		}
+
+		if !strings.HasSuffix(*path, "/bin") {
+			t.Errorf("expected PATH to end with '/bin', got '%s'", *path)
+		}
+	})
+
 	t.Run("PreUse", func(t *testing.T) {
 		manager := NewSdkManager()