diff --git a/application/constants/constants.go b/application/constants/constants.go
index 81b96b5..a50d415 100644
--- a/application/constants/constants.go
+++ b/application/constants/constants.go
@@ -3,7 +3,7 @@ package constants
 // These values will be injected at build time, DO NOT EDIT.
 
 // BackendVersion 当前后端版本号
-var BackendVersion = "4.0.0-alpha.1"
+var BackendVersion = "4.1.0"
 
 // IsPro 是否为Pro版本
 var IsPro = "false"
diff --git a/go.mod b/go.mod
index fb4f280..1fb7538 100644
--- a/go.mod
+++ b/go.mod
@@ -4,6 +4,7 @@ go 1.23.0
 
 require (
 	entgo.io/ent v0.13.0
+	github.com/Masterminds/semver/v3 v3.3.1
 	github.com/abslant/gzip v0.0.9
 	github.com/aliyun/aliyun-oss-go-sdk v3.0.2+incompatible
 	github.com/aws/aws-sdk-go v1.31.5
diff --git a/go.sum b/go.sum
index e2c97f5..8fe7330 100644
--- a/go.sum
+++ b/go.sum
@@ -76,6 +76,8 @@ github.com/Masterminds/semver v1.4.2/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF0
 github.com/Masterminds/semver v1.5.0/go.mod h1:MB6lktGJrhw8PrUyiEoblNEGEQ+RzHPF078ddwwvV3Y=
 github.com/Masterminds/semver/v3 v3.0.3/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=
 github.com/Masterminds/semver/v3 v3.1.0/go.mod h1:VPu/7SZ7ePZ3QOrcuXROw5FAcLl4a0cBrbBpGY/8hQs=
+github.com/Masterminds/semver/v3 v3.3.1 h1:QtNSWtVZ3nBfk8mAOu/B6v7FMJ+NHTIgUPi7rj+4nv4=
+github.com/Masterminds/semver/v3 v3.3.1/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
 github.com/Masterminds/sprig v2.15.0+incompatible/go.mod h1:y6hNFY5UBTIWBxnzTeuNhlNS5hqE0NB0E6fgfo2Br3o=
 github.com/Masterminds/sprig v2.22.0+incompatible/go.mod h1:y6hNFY5UBTIWBxnzTeuNhlNS5hqE0NB0E6fgfo2Br3o=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
diff --git a/inventory/client.go b/inventory/client.go
index d93cf52..6e3d293 100644
--- a/inventory/client.go
+++ b/inventory/client.go
@@ -5,20 +5,12 @@ import (
 	rawsql "database/sql"
 	"database/sql/driver"
 	"fmt"
-	"os"
 	"time"
 
 	"entgo.io/ent/dialect/sql"
-	"github.com/cloudreve/Cloudreve/v4/application/constants"
 	"github.com/cloudreve/Cloudreve/v4/ent"
-	"github.com/cloudreve/Cloudreve/v4/ent/group"
-	"github.com/cloudreve/Cloudreve/v4/ent/node"
 	_ "github.com/cloudreve/Cloudreve/v4/ent/runtime"
-	"github.com/cloudreve/Cloudreve/v4/ent/setting"
-	"github.com/cloudreve/Cloudreve/v4/ent/storagepolicy"
 	"github.com/cloudreve/Cloudreve/v4/inventory/debug"
-	"github.com/cloudreve/Cloudreve/v4/inventory/types"
-	"github.com/cloudreve/Cloudreve/v4/pkg/boolset"
 	"github.com/cloudreve/Cloudreve/v4/pkg/cache"
 	"github.com/cloudreve/Cloudreve/v4/pkg/conf"
 	"github.com/cloudreve/Cloudreve/v4/pkg/logging"
@@ -153,302 +145,3 @@ func (d sqlite3Driver) Open(name string) (conn driver.Conn, err error) {
 func init() {
 	rawsql.Register("sqlite3", sqlite3Driver{Driver: &sqlite.Driver{}})
 }
-
-// needMigration exams if required schema version is satisfied.
-func needMigration(client *ent.Client, ctx context.Context, requiredDbVersion string) bool {
-	c, _ := client.Setting.Query().Where(setting.NameEQ(DBVersionPrefix + requiredDbVersion)).Count(ctx)
-	return c == 0
-}
-
-func migrate(l logging.Logger, client *ent.Client, ctx context.Context, kv cache.Driver, requiredDbVersion string) error {
-	l.Info("Start initializing database schema...")
-	l.Info("Creating basic table schema...")
-	if err := client.Schema.Create(ctx); err != nil {
-		return fmt.Errorf("Failed creating schema resources: %w", err)
-	}
-
-	migrateDefaultSettings(l, client, ctx, kv)
-
-	if err := migrateDefaultStoragePolicy(l, client, ctx); err != nil {
-		return fmt.Errorf("failed migrating default storage policy: %w", err)
-	}
-
-	if err := migrateSysGroups(l, client, ctx); err != nil {
-		return fmt.Errorf("failed migrating default storage policy: %w", err)
-	}
-
-	client.Setting.Create().SetName(DBVersionPrefix + requiredDbVersion).SetValue("installed").Save(ctx)
-	return nil
-}
-
-func migrateDefaultSettings(l logging.Logger, client *ent.Client, ctx context.Context, kv cache.Driver) {
-	// clean kv cache
-	if err := kv.DeleteAll(); err != nil {
-		l.Warning("Failed to remove all KV entries while schema migration: %s", err)
-	}
-
-	// List existing settings into a map
-	existingSettings := make(map[string]struct{})
-	settings, err := client.Setting.Query().All(ctx)
-	if err != nil {
-		l.Warning("Failed to query existing settings: %s", err)
-	}
-
-	for _, s := range settings {
-		existingSettings[s.Name] = struct{}{}
-	}
-
-	l.Info("Insert default settings...")
-	for k, v := range DefaultSettings {
-		if _, ok := existingSettings[k]; ok {
-			l.Debug("Skip inserting setting %s, already exists.", k)
-			continue
-		}
-
-		if override, ok := os.LookupEnv(EnvDefaultOverwritePrefix + k); ok {
-			l.Info("Override default setting %q with env value %q", k, override)
-			v = override
-		}
-
-		client.Setting.Create().SetName(k).SetValue(v).SaveX(ctx)
-	}
-}
-
-func migrateDefaultStoragePolicy(l logging.Logger, client *ent.Client, ctx context.Context) error {
-	if _, err := client.StoragePolicy.Query().Where(storagepolicy.ID(1)).First(ctx); err == nil {
-		l.Info("Default storage policy (ID=1) already exists, skip migrating.")
-		return nil
-	}
-
-	l.Info("Insert default storage policy...")
-	if _, err := client.StoragePolicy.Create().
-		SetName("Default storage policy").
-		SetType(types.PolicyTypeLocal).
-		SetDirNameRule(util.DataPath("uploads/{uid}/{path}")).
-		SetFileNameRule("{uid}_{randomkey8}_{originname}").
-		SetSettings(&types.PolicySetting{
-			ChunkSize:   25 << 20, // 25MB
-			PreAllocate: true,
-		}).
-		Save(ctx); err != nil {
-		return fmt.Errorf("failed to create default storage policy: %w", err)
-	}
-
-	return nil
-}
-
-func migrateSysGroups(l logging.Logger, client *ent.Client, ctx context.Context) error {
-	if err := migrateAdminGroup(l, client, ctx); err != nil {
-		return err
-	}
-
-	if err := migrateUserGroup(l, client, ctx); err != nil {
-		return err
-	}
-
-	if err := migrateAnonymousGroup(l, client, ctx); err != nil {
-		return err
-	}
-
-	if err := migrateMasterNode(l, client, ctx); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func migrateAdminGroup(l logging.Logger, client *ent.Client, ctx context.Context) error {
-	if _, err := client.Group.Query().Where(group.ID(1)).First(ctx); err == nil {
-		l.Info("Default admin group (ID=1) already exists, skip migrating.")
-		return nil
-	}
-
-	l.Info("Insert default admin group...")
-	permissions := &boolset.BooleanSet{}
-	boolset.Sets(map[types.GroupPermission]bool{
-		types.GroupPermissionIsAdmin:             true,
-		types.GroupPermissionShare:               true,
-		types.GroupPermissionWebDAV:              true,
-		types.GroupPermissionWebDAVProxy:         true,
-		types.GroupPermissionArchiveDownload:     true,
-		types.GroupPermissionArchiveTask:         true,
-		types.GroupPermissionShareDownload:       true,
-		types.GroupPermissionRemoteDownload:      true,
-		types.GroupPermissionRedirectedSource:    true,
-		types.GroupPermissionAdvanceDelete:       true,
-		types.GroupPermissionIgnoreFileOwnership: true,
-		// TODO: review default permission
-	}, permissions)
-	if _, err := client.Group.Create().
-		SetName("Admin").
-		SetStoragePoliciesID(1).
-		SetMaxStorage(1 * constants.TB). // 1 TB default storage
-		SetPermissions(permissions).
-		SetSettings(&types.GroupSetting{
-			SourceBatchSize:  1000,
-			Aria2BatchSize:   50,
-			MaxWalkedFiles:   100000,
-			TrashRetention:   7 * 24 * 3600,
-			RedirectedSource: true,
-		}).
-		Save(ctx); err != nil {
-		return fmt.Errorf("failed to create default admin group: %w", err)
-	}
-
-	return nil
-}
-
-func migrateUserGroup(l logging.Logger, client *ent.Client, ctx context.Context) error {
-	if _, err := client.Group.Query().Where(group.ID(2)).First(ctx); err == nil {
-		l.Info("Default user group (ID=2) already exists, skip migrating.")
-		return nil
-	}
-
-	l.Info("Insert default user group...")
-	permissions := &boolset.BooleanSet{}
-	boolset.Sets(map[types.GroupPermission]bool{
-		types.GroupPermissionShare:            true,
-		types.GroupPermissionShareDownload:    true,
-		types.GroupPermissionRedirectedSource: true,
-	}, permissions)
-	if _, err := client.Group.Create().
-		SetName("User").
-		SetStoragePoliciesID(1).
-		SetMaxStorage(1 * constants.GB). // 1 GB default storage
-		SetPermissions(permissions).
-		SetSettings(&types.GroupSetting{
-			SourceBatchSize:  10,
-			Aria2BatchSize:   1,
-			MaxWalkedFiles:   100000,
-			TrashRetention:   7 * 24 * 3600,
-			RedirectedSource: true,
-		}).
-		Save(ctx); err != nil {
-		return fmt.Errorf("failed to create default user group: %w", err)
-	}
-
-	return nil
-}
-
-func migrateAnonymousGroup(l logging.Logger, client *ent.Client, ctx context.Context) error {
-	if _, err := client.Group.Query().Where(group.ID(AnonymousGroupID)).First(ctx); err == nil {
-		l.Info("Default anonymous group (ID=3) already exists, skip migrating.")
-		return nil
-	}
-
-	l.Info("Insert default anonymous group...")
-	permissions := &boolset.BooleanSet{}
-	boolset.Sets(map[types.GroupPermission]bool{
-		types.GroupPermissionIsAnonymous:   true,
-		types.GroupPermissionShareDownload: true,
-	}, permissions)
-	if _, err := client.Group.Create().
-		SetName("Anonymous").
-		SetPermissions(permissions).
-		SetSettings(&types.GroupSetting{
-			MaxWalkedFiles:   100000,
-			RedirectedSource: true,
-		}).
-		Save(ctx); err != nil {
-		return fmt.Errorf("failed to create default anonymous group: %w", err)
-	}
-
-	return nil
-}
-
-func migrateMasterNode(l logging.Logger, client *ent.Client, ctx context.Context) error {
-	if _, err := client.Node.Query().Where(node.TypeEQ(node.TypeMaster)).First(ctx); err == nil {
-		l.Info("Default master node already exists, skip migrating.")
-		return nil
-	}
-
-	capabilities := &boolset.BooleanSet{}
-	boolset.Sets(map[types.NodeCapability]bool{
-		types.NodeCapabilityCreateArchive:  true,
-		types.NodeCapabilityExtractArchive: true,
-		types.NodeCapabilityRemoteDownload: true,
-	}, capabilities)
-
-	stm := client.Node.Create().
-		SetType(node.TypeMaster).
-		SetCapabilities(capabilities).
-		SetName("Master").
-		SetSettings(&types.NodeSetting{
-			Provider: types.DownloaderProviderAria2,
-		}).
-		SetStatus(node.StatusActive)
-
-	_, enableAria2 := os.LookupEnv(EnvEnableAria2)
-	if enableAria2 {
-		l.Info("Aria2 is override as enabled.")
-		stm.SetSettings(&types.NodeSetting{
-			Provider: types.DownloaderProviderAria2,
-			Aria2Setting: &types.Aria2Setting{
-				Server: "http://127.0.0.1:6800/jsonrpc",
-			},
-		})
-	}
-
-	l.Info("Insert default master node...")
-	if _, err := stm.Save(ctx); err != nil {
-		return fmt.Errorf("failed to create default master node: %w", err)
-	}
-
-	return nil
-}
-
-func createMockData(client *ent.Client, ctx context.Context) {
-	//userCount := 100
-	//folderCount := 10000
-	//fileCount := 25000
-	//
-	//// create users
-	//pwdDigest, _ := digestPassword("52121225")
-	//userCreates := make([]*ent.UserCreate, userCount)
-	//for i := 0; i < userCount; i++ {
-	//	nick := uuid.Must(uuid.NewV4()).String()
-	//	userCreates[i] = client.User.Create().
-	//		SetEmail(nick + "@cloudreve.org").
-	//		SetNick(nick).
-	//		SetPassword(pwdDigest).
-	//		SetStatus(user.StatusActive).
-	//		SetGroupID(1)
-	//}
-	//users, err := client.User.CreateBulk(userCreates...).Save(ctx)
-	//if err != nil {
-	//	panic(err)
-	//}
-	//
-	//// Create root folder
-	//rootFolderCreates := make([]*ent.FileCreate, userCount)
-	//folderIds := make([][]int, 0, folderCount*userCount+userCount)
-	//for i, user := range users {
-	//	rootFolderCreates[i] = client.File.Create().
-	//		SetName(RootFolderName).
-	//		SetOwnerID(user.ID).
-	//		SetType(int(FileTypeFolder))
-	//}
-	//rootFolders, err := client.File.CreateBulk(rootFolderCreates...).Save(ctx)
-	//for _, rootFolders := range rootFolders {
-	//	folderIds = append(folderIds, []int{rootFolders.ID, rootFolders.OwnerID})
-	//}
-	//if err != nil {
-	//	panic(err)
-	//}
-	//
-	//// create random folder
-	//for i := 0; i < folderCount*userCount; i++ {
-	//	parent := lo.Sample(folderIds)
-	//	res := client.File.Create().
-	//		SetName(uuid.Must(uuid.NewV4()).String()).
-	//		SetType(int(FileTypeFolder)).
-	//		SetOwnerID(parent[1]).
-	//		SetFileChildren(parent[0]).
-	//		SaveX(ctx)
-	//	folderIds = append(folderIds, []int{res.ID, res.OwnerID})
-	//}
-
-	for i := 0; i < 255; i++ {
-		fmt.Printf("%d/", i)
-	}
-}
diff --git a/inventory/migration.go b/inventory/migration.go
new file mode 100644
index 0000000..9f1e28b
--- /dev/null
+++ b/inventory/migration.go
@@ -0,0 +1,416 @@
+package inventory
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/Masterminds/semver/v3"
+	"github.com/cloudreve/Cloudreve/v4/application/constants"
+	"github.com/cloudreve/Cloudreve/v4/ent"
+	"github.com/cloudreve/Cloudreve/v4/ent/group"
+	"github.com/cloudreve/Cloudreve/v4/ent/node"
+	"github.com/cloudreve/Cloudreve/v4/ent/setting"
+	"github.com/cloudreve/Cloudreve/v4/ent/storagepolicy"
+	"github.com/cloudreve/Cloudreve/v4/inventory/types"
+	"github.com/cloudreve/Cloudreve/v4/pkg/boolset"
+	"github.com/cloudreve/Cloudreve/v4/pkg/cache"
+	"github.com/cloudreve/Cloudreve/v4/pkg/logging"
+	"github.com/cloudreve/Cloudreve/v4/pkg/util"
+	"github.com/samber/lo"
+)
+
+// needMigration exams if required schema version is satisfied.
+func needMigration(client *ent.Client, ctx context.Context, requiredDbVersion string) bool {
+	c, _ := client.Setting.Query().Where(setting.NameEQ(DBVersionPrefix + requiredDbVersion)).Count(ctx)
+	return c == 0
+}
+
+func migrate(l logging.Logger, client *ent.Client, ctx context.Context, kv cache.Driver, requiredDbVersion string) error {
+	l.Info("Start initializing database schema...")
+	l.Info("Creating basic table schema...")
+	if err := client.Schema.Create(ctx); err != nil {
+		return fmt.Errorf("Failed creating schema resources: %w", err)
+	}
+
+	migrateDefaultSettings(l, client, ctx, kv)
+
+	if err := migrateDefaultStoragePolicy(l, client, ctx); err != nil {
+		return fmt.Errorf("failed migrating default storage policy: %w", err)
+	}
+
+	if err := migrateSysGroups(l, client, ctx); err != nil {
+		return fmt.Errorf("failed migrating default storage policy: %w", err)
+	}
+
+	if err := applyPatches(l, client, ctx, requiredDbVersion); err != nil {
+		return fmt.Errorf("failed applying schema patches: %w", err)
+	}
+
+	client.Setting.Create().SetName(DBVersionPrefix + requiredDbVersion).SetValue("installed").Save(ctx)
+	return nil
+}
+
+func migrateDefaultSettings(l logging.Logger, client *ent.Client, ctx context.Context, kv cache.Driver) {
+	// clean kv cache
+	if err := kv.DeleteAll(); err != nil {
+		l.Warning("Failed to remove all KV entries while schema migration: %s", err)
+	}
+
+	// List existing settings into a map
+	existingSettings := make(map[string]struct{})
+	settings, err := client.Setting.Query().All(ctx)
+	if err != nil {
+		l.Warning("Failed to query existing settings: %s", err)
+	}
+
+	for _, s := range settings {
+		existingSettings[s.Name] = struct{}{}
+	}
+
+	l.Info("Insert default settings...")
+	for k, v := range DefaultSettings {
+		if _, ok := existingSettings[k]; ok {
+			l.Debug("Skip inserting setting %s, already exists.", k)
+			continue
+		}
+
+		if override, ok := os.LookupEnv(EnvDefaultOverwritePrefix + k); ok {
+			l.Info("Override default setting %q with env value %q", k, override)
+			v = override
+		}
+
+		client.Setting.Create().SetName(k).SetValue(v).SaveX(ctx)
+	}
+}
+
+func migrateDefaultStoragePolicy(l logging.Logger, client *ent.Client, ctx context.Context) error {
+	if _, err := client.StoragePolicy.Query().Where(storagepolicy.ID(1)).First(ctx); err == nil {
+		l.Info("Default storage policy (ID=1) already exists, skip migrating.")
+		return nil
+	}
+
+	l.Info("Insert default storage policy...")
+	if _, err := client.StoragePolicy.Create().
+		SetName("Default storage policy").
+		SetType(types.PolicyTypeLocal).
+		SetDirNameRule(util.DataPath("uploads/{uid}/{path}")).
+		SetFileNameRule("{uid}_{randomkey8}_{originname}").
+		SetSettings(&types.PolicySetting{
+			ChunkSize:   25 << 20, // 25MB
+			PreAllocate: true,
+		}).
+		Save(ctx); err != nil {
+		return fmt.Errorf("failed to create default storage policy: %w", err)
+	}
+
+	return nil
+}
+
+func migrateSysGroups(l logging.Logger, client *ent.Client, ctx context.Context) error {
+	if err := migrateAdminGroup(l, client, ctx); err != nil {
+		return err
+	}
+
+	if err := migrateUserGroup(l, client, ctx); err != nil {
+		return err
+	}
+
+	if err := migrateAnonymousGroup(l, client, ctx); err != nil {
+		return err
+	}
+
+	if err := migrateMasterNode(l, client, ctx); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func migrateAdminGroup(l logging.Logger, client *ent.Client, ctx context.Context) error {
+	if _, err := client.Group.Query().Where(group.ID(1)).First(ctx); err == nil {
+		l.Info("Default admin group (ID=1) already exists, skip migrating.")
+		return nil
+	}
+
+	l.Info("Insert default admin group...")
+	permissions := &boolset.BooleanSet{}
+	boolset.Sets(map[types.GroupPermission]bool{
+		types.GroupPermissionIsAdmin:             true,
+		types.GroupPermissionShare:               true,
+		types.GroupPermissionWebDAV:              true,
+		types.GroupPermissionWebDAVProxy:         true,
+		types.GroupPermissionArchiveDownload:     true,
+		types.GroupPermissionArchiveTask:         true,
+		types.GroupPermissionShareDownload:       true,
+		types.GroupPermissionRemoteDownload:      true,
+		types.GroupPermissionRedirectedSource:    true,
+		types.GroupPermissionAdvanceDelete:       true,
+		types.GroupPermissionIgnoreFileOwnership: true,
+		// TODO: review default permission
+	}, permissions)
+	if _, err := client.Group.Create().
+		SetName("Admin").
+		SetStoragePoliciesID(1).
+		SetMaxStorage(1 * constants.TB). // 1 TB default storage
+		SetPermissions(permissions).
+		SetSettings(&types.GroupSetting{
+			SourceBatchSize:  1000,
+			Aria2BatchSize:   50,
+			MaxWalkedFiles:   100000,
+			TrashRetention:   7 * 24 * 3600,
+			RedirectedSource: true,
+		}).
+		Save(ctx); err != nil {
+		return fmt.Errorf("failed to create default admin group: %w", err)
+	}
+
+	return nil
+}
+
+func migrateUserGroup(l logging.Logger, client *ent.Client, ctx context.Context) error {
+	if _, err := client.Group.Query().Where(group.ID(2)).First(ctx); err == nil {
+		l.Info("Default user group (ID=2) already exists, skip migrating.")
+		return nil
+	}
+
+	l.Info("Insert default user group...")
+	permissions := &boolset.BooleanSet{}
+	boolset.Sets(map[types.GroupPermission]bool{
+		types.GroupPermissionShare:            true,
+		types.GroupPermissionShareDownload:    true,
+		types.GroupPermissionRedirectedSource: true,
+	}, permissions)
+	if _, err := client.Group.Create().
+		SetName("User").
+		SetStoragePoliciesID(1).
+		SetMaxStorage(1 * constants.GB). // 1 GB default storage
+		SetPermissions(permissions).
+		SetSettings(&types.GroupSetting{
+			SourceBatchSize:  10,
+			Aria2BatchSize:   1,
+			MaxWalkedFiles:   100000,
+			TrashRetention:   7 * 24 * 3600,
+			RedirectedSource: true,
+		}).
+		Save(ctx); err != nil {
+		return fmt.Errorf("failed to create default user group: %w", err)
+	}
+
+	return nil
+}
+
+func migrateAnonymousGroup(l logging.Logger, client *ent.Client, ctx context.Context) error {
+	if _, err := client.Group.Query().Where(group.ID(AnonymousGroupID)).First(ctx); err == nil {
+		l.Info("Default anonymous group (ID=3) already exists, skip migrating.")
+		return nil
+	}
+
+	l.Info("Insert default anonymous group...")
+	permissions := &boolset.BooleanSet{}
+	boolset.Sets(map[types.GroupPermission]bool{
+		types.GroupPermissionIsAnonymous:   true,
+		types.GroupPermissionShareDownload: true,
+	}, permissions)
+	if _, err := client.Group.Create().
+		SetName("Anonymous").
+		SetPermissions(permissions).
+		SetSettings(&types.GroupSetting{
+			MaxWalkedFiles:   100000,
+			RedirectedSource: true,
+		}).
+		Save(ctx); err != nil {
+		return fmt.Errorf("failed to create default anonymous group: %w", err)
+	}
+
+	return nil
+}
+
+func migrateMasterNode(l logging.Logger, client *ent.Client, ctx context.Context) error {
+	if _, err := client.Node.Query().Where(node.TypeEQ(node.TypeMaster)).First(ctx); err == nil {
+		l.Info("Default master node already exists, skip migrating.")
+		return nil
+	}
+
+	capabilities := &boolset.BooleanSet{}
+	boolset.Sets(map[types.NodeCapability]bool{
+		types.NodeCapabilityCreateArchive:  true,
+		types.NodeCapabilityExtractArchive: true,
+		types.NodeCapabilityRemoteDownload: true,
+	}, capabilities)
+
+	stm := client.Node.Create().
+		SetType(node.TypeMaster).
+		SetCapabilities(capabilities).
+		SetName("Master").
+		SetSettings(&types.NodeSetting{
+			Provider: types.DownloaderProviderAria2,
+		}).
+		SetStatus(node.StatusActive)
+
+	_, enableAria2 := os.LookupEnv(EnvEnableAria2)
+	if enableAria2 {
+		l.Info("Aria2 is override as enabled.")
+		stm.SetSettings(&types.NodeSetting{
+			Provider: types.DownloaderProviderAria2,
+			Aria2Setting: &types.Aria2Setting{
+				Server: "http://127.0.0.1:6800/jsonrpc",
+			},
+		})
+	}
+
+	l.Info("Insert default master node...")
+	if _, err := stm.Save(ctx); err != nil {
+		return fmt.Errorf("failed to create default master node: %w", err)
+	}
+
+	return nil
+}
+
+type (
+	PatchFunc func(l logging.Logger, client *ent.Client, ctx context.Context) error
+	Patch     struct {
+		Name       string
+		EndVersion string
+		Func       PatchFunc
+	}
+)
+
+var patches = []Patch{
+	{
+		Name:       "apply_default_excalidraw_viewer",
+		EndVersion: "4.1.0",
+		Func: func(l logging.Logger, client *ent.Client, ctx context.Context) error {
+			// 1. Apply excalidraw file icons
+			// 1.1 Check if it's already applied
+			iconSetting, err := client.Setting.Query().Where(setting.Name("explorer_icons")).First(ctx)
+			if err != nil {
+				return fmt.Errorf("failed to query explorer_icons setting: %w", err)
+			}
+
+			var icons []types.FileTypeIconSetting
+			if err := json.Unmarshal([]byte(iconSetting.Value), &icons); err != nil {
+				return fmt.Errorf("failed to unmarshal explorer_icons setting: %w", err)
+			}
+
+			iconExisted := false
+			for _, icon := range icons {
+				if lo.Contains(icon.Exts, "excalidraw") {
+					iconExisted = true
+					break
+				}
+			}
+
+			// 1.2 If not existed, add it
+			if !iconExisted {
+				// Found existing excalidraw icon default setting
+				var defaultExcalidrawIcon types.FileTypeIconSetting
+				for _, icon := range defaultIcons {
+					if lo.Contains(icon.Exts, "excalidraw") {
+						defaultExcalidrawIcon = icon
+						break
+					}
+				}
+
+				icons = append(icons, defaultExcalidrawIcon)
+				newIconSetting, err := json.Marshal(icons)
+				if err != nil {
+					return fmt.Errorf("failed to marshal explorer_icons setting: %w", err)
+				}
+
+				if _, err := client.Setting.UpdateOne(iconSetting).SetValue(string(newIconSetting)).Save(ctx); err != nil {
+					return fmt.Errorf("failed to update explorer_icons setting: %w", err)
+				}
+			}
+
+			// 2. Apply default file viewers
+			// 2.1 Check if it's already applied
+			fileViewersSetting, err := client.Setting.Query().Where(setting.Name("file_viewers")).First(ctx)
+			if err != nil {
+				return fmt.Errorf("failed to query file_viewers setting: %w", err)
+			}
+
+			var fileViewers []types.ViewerGroup
+			if err := json.Unmarshal([]byte(fileViewersSetting.Value), &fileViewers); err != nil {
+				return fmt.Errorf("failed to unmarshal file_viewers setting: %w", err)
+			}
+
+			fileViewerExisted := false
+			for _, viewer := range fileViewers[0].Viewers {
+				if viewer.ID == "excalidraw" {
+					fileViewerExisted = true
+					break
+				}
+			}
+
+			// 2.2 If not existed, add it
+			if !fileViewerExisted {
+				// Found existing excalidraw viewer default setting
+				var defaultExcalidrawViewer types.Viewer
+				for _, viewer := range defaultFileViewers[0].Viewers {
+					if viewer.ID == "excalidraw" {
+						defaultExcalidrawViewer = viewer
+						break
+					}
+				}
+
+				fileViewers[0].Viewers = append(fileViewers[0].Viewers, defaultExcalidrawViewer)
+				newFileViewersSetting, err := json.Marshal(fileViewers)
+				if err != nil {
+					return fmt.Errorf("failed to marshal file_viewers setting: %w", err)
+				}
+
+				if _, err := client.Setting.UpdateOne(fileViewersSetting).SetValue(string(newFileViewersSetting)).Save(ctx); err != nil {
+					return fmt.Errorf("failed to update file_viewers setting: %w", err)
+				}
+			}
+
+			return nil
+		},
+	},
+}
+
+func applyPatches(l logging.Logger, client *ent.Client, ctx context.Context, requiredDbVersion string) error {
+	allVersionMarks, err := client.Setting.Query().Where(setting.NameHasPrefix(DBVersionPrefix)).All(ctx)
+	if err != nil {
+		return err
+	}
+
+	requiredDbVersion = strings.TrimSuffix(requiredDbVersion, "-pro")
+
+	// Find the latest applied version
+	var latestAppliedVersion *semver.Version
+	for _, v := range allVersionMarks {
+		v.Name = strings.TrimSuffix(v.Name, "-pro")
+		version, err := semver.NewVersion(strings.TrimPrefix(v.Name, DBVersionPrefix))
+		if err != nil {
+			l.Warning("Failed to parse past version %s: %s", v.Name, err)
+			continue
+		}
+		if latestAppliedVersion == nil || version.Compare(latestAppliedVersion) > 0 {
+			latestAppliedVersion = version
+		}
+	}
+
+	requiredVersion, err := semver.NewVersion(requiredDbVersion)
+	if err != nil {
+		return fmt.Errorf("failed to parse required version %s: %w", requiredDbVersion, err)
+	}
+
+	if latestAppliedVersion == nil || requiredVersion.Compare(requiredVersion) > 0 {
+		latestAppliedVersion = requiredVersion
+	}
+
+	for _, patch := range patches {
+		if latestAppliedVersion.Compare(semver.MustParse(patch.EndVersion)) < 0 {
+			l.Info("Applying schema patch %s...", patch.Name)
+			if err := patch.Func(l, client, ctx); err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
diff --git a/inventory/setting.go b/inventory/setting.go
index cae6715..45b5e8c 100644
--- a/inventory/setting.go
+++ b/inventory/setting.go
@@ -2,10 +2,12 @@ package inventory
 
 import (
 	"context"
+	"encoding/json"
 	"fmt"
 
 	"github.com/cloudreve/Cloudreve/v4/ent"
 	"github.com/cloudreve/Cloudreve/v4/ent/setting"
+	"github.com/cloudreve/Cloudreve/v4/inventory/types"
 	"github.com/cloudreve/Cloudreve/v4/pkg/cache"
 	"github.com/cloudreve/Cloudreve/v4/pkg/util"
 	"github.com/gofrs/uuid"
@@ -77,6 +79,253 @@ func (c *settingClient) Set(ctx context.Context, settings map[string]string) err
 	return nil
 }
 
+var (
+	defaultIcons = []types.FileTypeIconSetting{
+		{
+			Exts:  []string{"mp3", "flac", "ape", "wav", "acc", "ogg", "m4a"},
+			Icon:  "audio",
+			Color: "#651fff",
+		},
+		{
+			Exts:  []string{"m3u8", "mp4", "flv", "avi", "wmv", "mkv", "rm", "rmvb", "mov", "ogv"},
+			Icon:  "video",
+			Color: "#d50000",
+		},
+		{
+			Exts:  []string{"bmp", "iff", "png", "gif", "jpg", "jpeg", "psd", "svg", "webp", "heif", "heic", "tiff", "avif"},
+			Icon:  "image",
+			Color: "#d32f2f",
+		},
+		{
+			Exts:  []string{"3fr", "ari", "arw", "bay", "braw", "crw", "cr2", "cr3", "cap", "dcs", "dcr", "dng", "drf", "eip", "erf", "fff", "gpr", "iiq", "k25", "kdc", "mdc", "mef", "mos", "mrw", "nef", "nrw", "obm", "orf", "pef", "ptx", "pxn", "r3d", "raf", "raw", "rwl", "rw2", "rwz", "sr2", "srf", "srw", "tif", "x3f"},
+			Icon:  "raw",
+			Color: "#d32f2f",
+		},
+		{
+			Exts:  []string{"pdf"},
+			Color: "#f44336",
+			Icon:  "pdf",
+		},
+		{
+			Exts:  []string{"doc", "docx"},
+			Color: "#538ce5",
+			Icon:  "word",
+		},
+		{
+			Exts:  []string{"ppt", "pptx"},
+			Color: "#EF633F",
+			Icon:  "ppt",
+		},
+		{
+			Exts:  []string{"xls", "xlsx", "csv"},
+			Color: "#4caf50",
+			Icon:  "excel",
+		},
+		{
+			Exts:  []string{"txt", "html"},
+			Color: "#607d8b",
+			Icon:  "text",
+		},
+		{
+			Exts:  []string{"torrent"},
+			Color: "#5c6bc0",
+			Icon:  "torrent",
+		},
+		{
+			Exts:  []string{"zip", "gz", "xz", "tar", "rar", "7z", "bz2", "z"},
+			Color: "#f9a825",
+			Icon:  "zip",
+		},
+		{
+			Exts:  []string{"exe", "msi"},
+			Color: "#1a237e",
+			Icon:  "exe",
+		},
+		{
+			Exts:  []string{"apk"},
+			Color: "#8bc34a",
+			Icon:  "android",
+		},
+		{
+			Exts:  []string{"go"},
+			Color: "#16b3da",
+			Icon:  "go",
+		},
+		{
+			Exts:  []string{"py"},
+			Color: "#3776ab",
+			Icon:  "python",
+		},
+		{
+			Exts:  []string{"c"},
+			Color: "#a4c639",
+			Icon:  "c",
+		},
+		{
+			Exts:  []string{"cpp"},
+			Color: "#f34b7d",
+			Icon:  "cpp",
+		},
+		{
+			Exts:  []string{"js", "jsx"},
+			Color: "#f4d003",
+			Icon:  "js",
+		},
+		{
+			Exts:  []string{"epub"},
+			Color: "#81b315",
+			Icon:  "book",
+		},
+		{
+			Exts:      []string{"rs"},
+			Color:     "#000",
+			ColorDark: "#fff",
+			Icon:      "rust",
+		},
+		{
+			Exts:  []string{"drawio"},
+			Color: "#F08705",
+			Icon:  "flowchart",
+		},
+		{
+			Exts:  []string{"dwb"},
+			Color: "#F08705",
+			Icon:  "whiteboard",
+		},
+		{
+			Exts:      []string{"md"},
+			Color:     "#383838",
+			ColorDark: "#cbcbcb",
+			Icon:      "markdown",
+		},
+		{
+			Img:  "/static/img/viewers/excalidraw.svg",
+			Exts: []string{"excalidraw"},
+		},
+	}
+
+	defaultFileViewers = []types.ViewerGroup{
+		{
+			Viewers: []types.Viewer{
+				{
+					ID:          "music",
+					Type:        types.ViewerTypeBuiltin,
+					DisplayName: "fileManager.musicPlayer",
+					Exts:        []string{"mp3", "ogg", "wav", "flac", "m4a"},
+				},
+				{
+					ID:          "epub",
+					Type:        types.ViewerTypeBuiltin,
+					DisplayName: "fileManager.epubViewer",
+					Exts:        []string{"epub"},
+				},
+				{
+					ID:          "googledocs",
+					Type:        types.ViewerTypeCustom,
+					DisplayName: "fileManager.googledocs",
+					Icon:        "/static/img/viewers/gdrive.png",
+					Url:         "https://docs.google.com/gview?url={$src}&embedded=true",
+					Exts:        []string{"jpeg", "png", "gif", "tiff", "bmp", "webm", "mpeg4", "3gpp", "mov", "avi", "mpegps", "wmv", "flv", "txt", "css", "html", "php", "c", "cpp", "h", "hpp", "js", "doc", "docx", "xls", "xlsx", "ppt", "pptx", "pdf", "pages", "ai", "psd", "tiff", "dxf", "svg", "eps", "ps", "ttf", "xps"},
+					MaxSize:     26214400,
+				},
+				{
+					ID:          "m365online",
+					Type:        types.ViewerTypeCustom,
+					DisplayName: "fileManager.m365viewer",
+					Icon:        "/static/img/viewers/m365.svg",
+					Url:         "https://view.officeapps.live.com/op/view.aspx?src={$src}",
+					Exts:        []string{"doc", "docx", "docm", "dotm", "dotx", "xlsx", "xlsb", "xls", "xlsm", "pptx", "ppsx", "ppt", "pps", "pptm", "potm", "ppam", "potx", "ppsm"},
+					MaxSize:     10485760,
+				},
+				{
+					ID:          "pdf",
+					Type:        types.ViewerTypeBuiltin,
+					DisplayName: "fileManager.pdfViewer",
+					Exts:        []string{"pdf"},
+				},
+				{
+					ID:          "video",
+					Type:        types.ViewerTypeBuiltin,
+					Icon:        "/static/img/viewers/artplayer.png",
+					DisplayName: "Artplayer",
+					Exts:        []string{"mp4", "mkv", "webm", "avi", "mov", "m3u8", "flv"},
+				},
+				{
+					ID:          "markdown",
+					Type:        types.ViewerTypeBuiltin,
+					DisplayName: "fileManager.markdownEditor",
+					Exts:        []string{"md"},
+					Templates: []types.NewFileTemplate{
+						{
+							Ext:         "md",
+							DisplayName: "Markdown",
+						},
+					},
+				},
+				{
+					ID:          "drawio",
+					Type:        types.ViewerTypeBuiltin,
+					Icon:        "/static/img/viewers/drawio.svg",
+					DisplayName: "draw.io",
+					Exts:        []string{"drawio", "dwb"},
+					Props: map[string]string{
+						"host": "https://embed.diagrams.net",
+					},
+					Templates: []types.NewFileTemplate{
+						{
+							Ext:         "drawio",
+							DisplayName: "fileManager.diagram",
+						},
+						{
+							Ext:         "dwb",
+							DisplayName: "fileManager.whiteboard",
+						},
+					},
+				},
+				{
+					ID:          "image",
+					Type:        types.ViewerTypeBuiltin,
+					DisplayName: "fileManager.imageViewer",
+					Exts:        []string{"bmp", "png", "gif", "jpg", "jpeg", "svg", "webp", "heic", "heif"},
+				},
+				{
+					ID:          "monaco",
+					Type:        types.ViewerTypeBuiltin,
+					Icon:        "/static/img/viewers/monaco.svg",
+					DisplayName: "fileManager.monacoEditor",
+					Exts:        []string{"md", "txt", "json", "php", "py", "bat", "c", "h", "cpp", "hpp", "cs", "css", "dockerfile", "go", "html", "htm", "ini", "java", "js", "jsx", "less", "lua", "sh", "sql", "xml", "yaml"},
+					Templates: []types.NewFileTemplate{
+						{
+							Ext:         "txt",
+							DisplayName: "fileManager.text",
+						},
+					},
+				},
+				{
+					ID:          "photopea",
+					Type:        types.ViewerTypeBuiltin,
+					Icon:        "/static/img/viewers/photopea.png",
+					DisplayName: "Photopea",
+					Exts:        []string{"psd", "ai", "indd", "xcf", "xd", "fig", "kri", "clip", "pxd", "pxz", "cdr", "ufo", "afphoyo", "svg", "esp", "pdf", "pdn", "wmf", "emf", "png", "jpg", "jpeg", "gif", "webp", "ico", "icns", "bmp", "avif", "heic", "jxl", "ppm", "pgm", "pbm", "tiff", "dds", "iff", "anim", "tga", "dng", "nef", "cr2", "cr3", "arw", "rw2", "raf", "orf", "gpr", "3fr", "fff"},
+				},
+				{
+					ID:          "excalidraw",
+					Type:        types.ViewerTypeBuiltin,
+					Icon:        "/static/img/viewers/excalidraw.svg",
+					DisplayName: "Excalidraw",
+					Exts:        []string{"excalidraw"},
+					Templates: []types.NewFileTemplate{
+						{
+							Ext:         "excalidraw",
+							DisplayName: "Excalidraw",
+						},
+					},
+				},
+			},
+		},
+	}
+)
+
 var DefaultSettings = map[string]string{
 	"siteURL":                                    `http://localhost:5212`,
 	"siteName":                                   `Cloudreve`,
@@ -233,7 +482,6 @@ var DefaultSettings = map[string]string{
 	"site_logo_light":                            "/static/img/logo_light.svg",
 	"tos_url":                                    "https://cloudreve.org/privacy-policy",
 	"privacy_policy_url":                         "https://cloudreve.org/privacy-policy",
-	"explorer_icons":                             `[{"exts":["mp3","flac","ape","wav","acc","ogg","m4a"],"icon":"audio","color":"#651fff"},{"exts":["m3u8","mp4","flv","avi","wmv","mkv","rm","rmvb","mov","ogv"],"icon":"video","color":"#d50000"},{"exts":["bmp","iff","png","gif","jpg","jpeg","psd","svg","webp","heif","heic","tiff","avif"],"icon":"image","color":"#d32f2f"},{"exts":["3fr","ari","arw","bay","braw","crw","cr2","cr3","cap","dcs","dcr","dng","drf","eip","erf","fff","gpr","iiq","k25","kdc","mdc","mef","mos","mrw","nef","nrw","obm","orf","pef","ptx","pxn","r3d","raf","raw","rwl","rw2","rwz","sr2","srf","srw","tif","x3f"],"icon":"raw","color":"#d32f2f"},{"exts":["pdf"],"color":"#f44336","icon":"pdf"},{"exts":["doc","docx"],"color":"#538ce5","icon":"word"},{"exts":["ppt","pptx"],"color":"#EF633F","icon":"ppt"},{"exts":["xls","xlsx","csv"],"color":"#4caf50","icon":"excel"},{"exts":["txt","html"],"color":"#607d8b","icon":"text"},{"exts":["torrent"],"color":"#5c6bc0","icon":"torrent"},{"exts":["zip","gz","xz","tar","rar","7z","bz2","z"],"color":"#f9a825","icon":"zip"},{"exts":["exe","msi"],"color":"#1a237e","icon":"exe"},{"exts":["apk"],"color":"#8bc34a","icon":"android"},{"exts":["go"],"color":"#16b3da","icon":"go"},{"exts":["py"],"color":"#3776ab","icon":"python"},{"exts":["c"],"color":"#a4c639","icon":"c"},{"exts":["cpp"],"color":"#f34b7d","icon":"cpp"},{"exts":["js","jsx"],"color":"#f4d003","icon":"js"},{"exts":["epub"],"color":"#81b315","icon":"book"},{"exts":["rs"],"color":"#000","color_dark":"#fff","icon":"rust"},{"exts":["drawio"],"color":"#F08705","icon":"flowchart"},{"exts":["dwb"],"color":"#F08705","icon":"whiteboard"},{"exts":["md"],"color":"#383838","color_dark":"#cbcbcb","icon":"markdown"},{"img":"/static/img/viewers/excalidraw.svg","exts":["excalidraw"]}]`,
 	"explorer_category_image_query":              "type=file&case_folding&use_or&name=*.bmp&name=*.iff&name=*.png&name=*.gif&name=*.jpg&name=*.jpeg&name=*.psd&name=*.svg&name=*.webp&name=*.heif&name=*.heic&name=*.tiff&name=*.avif&name=*.3fr&name=*.ari&name=*.arw&name=*.bay&name=*.braw&name=*.crw&name=*.cr2&name=*.cr3&name=*.cap&name=*.dcs&name=*.dcr&name=*.dng&name=*.drf&name=*.eip&name=*.erf&name=*.fff&name=*.gpr&name=*.iiq&name=*.k25&name=*.kdc&name=*.mdc&name=*.mef&name=*.mos&name=*.mrw&name=*.nef&name=*.nrw&name=*.obm&name=*.orf&name=*.pef&name=*.ptx&name=*.pxn&name=*.r3d&name=*.raf&name=*.raw&name=*.rwl&name=*.rw2&name=*.rwz&name=*.sr2&name=*.srf&name=*.srw&name=*.tif&name=*.x3f",
 	"explorer_category_video_query":              "type=file&case_folding&use_or&name=*.mp4&name=*.m3u8&name=*.flv&name=*.avi&name=*.wmv&name=*.mkv&name=*.rm&name=*.rmvb&name=*.mov&name=*.ogv",
 	"explorer_category_audio_query":              "type=file&case_folding&use_or&name=*.mp3&name=*.flac&name=*.ape&name=*.wav&name=*.acc&name=*.ogg&name=*.m4a",
@@ -243,10 +491,24 @@ var DefaultSettings = map[string]string{
 	"map_provider":                               "openstreetmap",
 	"map_google_tile_type":                       "regular",
 	"mime_mapping":                               `{".xlsx":"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",".xltx":"application/vnd.openxmlformats-officedocument.spreadsheetml.template",".potx":"application/vnd.openxmlformats-officedocument.presentationml.template",".ppsx":"application/vnd.openxmlformats-officedocument.presentationml.slideshow",".pptx":"application/vnd.openxmlformats-officedocument.presentationml.presentation",".sldx":"application/vnd.openxmlformats-officedocument.presentationml.slide",".docx":"application/vnd.openxmlformats-officedocument.wordprocessingml.document",".dotx":"application/vnd.openxmlformats-officedocument.wordprocessingml.template",".xlam":"application/vnd.ms-excel.addin.macroEnabled.12",".xlsb":"application/vnd.ms-excel.sheet.binary.macroEnabled.12",".apk":"application/vnd.android.package-archive",".hqx":"application/mac-binhex40",".cpt":"application/mac-compactpro",".doc":"application/msword",".ogg":"application/ogg",".pdf":"application/pdf",".rtf":"text/rtf",".mif":"application/vnd.mif",".xls":"application/vnd.ms-excel",".ppt":"application/vnd.ms-powerpoint",".odc":"application/vnd.oasis.opendocument.chart",".odb":"application/vnd.oasis.opendocument.database",".odf":"application/vnd.oasis.opendocument.formula",".odg":"application/vnd.oasis.opendocument.graphics",".otg":"application/vnd.oasis.opendocument.graphics-template",".odi":"application/vnd.oasis.opendocument.image",".odp":"application/vnd.oasis.opendocument.presentation",".otp":"application/vnd.oasis.opendocument.presentation-template",".ods":"application/vnd.oasis.opendocument.spreadsheet",".ots":"application/vnd.oasis.opendocument.spreadsheet-template",".odt":"application/vnd.oasis.opendocument.text",".odm":"application/vnd.oasis.opendocument.text-master",".ott":"application/vnd.oasis.opendocument.text-template",".oth":"application/vnd.oasis.opendocument.text-web",".sxw":"application/vnd.sun.xml.writer",".stw":"application/vnd.sun.xml.writer.template",".sxc":"application/vnd.sun.xml.calc",".stc":"application/vnd.sun.xml.calc.template",".sxd":"application/vnd.sun.xml.draw",".std":"application/vnd.sun.xml.draw.template",".sxi":"application/vnd.sun.xml.impress",".sti":"application/vnd.sun.xml.impress.template",".sxg":"application/vnd.sun.xml.writer.global",".sxm":"application/vnd.sun.xml.math",".sis":"application/vnd.symbian.install",".wbxml":"application/vnd.wap.wbxml",".wmlc":"application/vnd.wap.wmlc",".wmlsc":"application/vnd.wap.wmlscriptc",".bcpio":"application/x-bcpio",".torrent":"application/x-bittorrent",".bz2":"application/x-bzip2",".vcd":"application/x-cdlink",".pgn":"application/x-chess-pgn",".cpio":"application/x-cpio",".csh":"application/x-csh",".dvi":"application/x-dvi",".spl":"application/x-futuresplash",".gtar":"application/x-gtar",".hdf":"application/x-hdf",".jar":"application/x-java-archive",".jnlp":"application/x-java-jnlp-file",".js":"application/x-javascript",".ksp":"application/x-kspread",".chrt":"application/x-kchart",".kil":"application/x-killustrator",".latex":"application/x-latex",".rpm":"application/x-rpm",".sh":"application/x-sh",".shar":"application/x-shar",".swf":"application/x-shockwave-flash",".sit":"application/x-stuffit",".sv4cpio":"application/x-sv4cpio",".sv4crc":"application/x-sv4crc",".tar":"application/x-tar",".tcl":"application/x-tcl",".tex":"application/x-tex",".man":"application/x-troff-man",".me":"application/x-troff-me",".ms":"application/x-troff-ms",".ustar":"application/x-ustar",".src":"application/x-wais-source",".zip":"application/zip",".m3u":"audio/x-mpegurl",".ra":"audio/x-pn-realaudio",".wav":"audio/x-wav",".wma":"audio/x-ms-wma",".wax":"audio/x-ms-wax",".pdb":"chemical/x-pdb",".xyz":"chemical/x-xyz",".bmp":"image/bmp",".gif":"image/gif",".ief":"image/ief",".png":"image/png",".wbmp":"image/vnd.wap.wbmp",".ras":"image/x-cmu-raster",".pnm":"image/x-portable-anymap",".pbm":"image/x-portable-bitmap",".pgm":"image/x-portable-graymap",".ppm":"image/x-portable-pixmap",".rgb":"image/x-rgb",".xbm":"image/x-xbitmap",".xpm":"image/x-xpixmap",".xwd":"image/x-xwindowdump",".css":"text/css",".rtx":"text/richtext",".tsv":"text/tab-separated-values",".jad":"text/vnd.sun.j2me.app-descriptor",".wml":"text/vnd.wap.wml",".wmls":"text/vnd.wap.wmlscript",".etx":"text/x-setext",".mxu":"video/vnd.mpegurl",".flv":"video/x-flv",".wm":"video/x-ms-wm",".wmv":"video/x-ms-wmv",".wmx":"video/x-ms-wmx",".wvx":"video/x-ms-wvx",".avi":"video/x-msvideo",".movie":"video/x-sgi-movie",".ice":"x-conference/x-cooltalk",".3gp":"video/3gpp",".ai":"application/postscript",".aif":"audio/x-aiff",".aifc":"audio/x-aiff",".aiff":"audio/x-aiff",".asc":"text/plain",".atom":"application/atom+xml",".au":"audio/basic",".bin":"application/octet-stream",".cdf":"application/x-netcdf",".cgm":"image/cgm",".class":"application/octet-stream",".dcr":"application/x-director",".dif":"video/x-dv",".dir":"application/x-director",".djv":"image/vnd.djvu",".djvu":"image/vnd.djvu",".dll":"application/octet-stream",".dmg":"application/octet-stream",".dms":"application/octet-stream",".dtd":"application/xml-dtd",".dv":"video/x-dv",".dxr":"application/x-director",".eps":"application/postscript",".exe":"application/octet-stream",".ez":"application/andrew-inset",".gram":"application/srgs",".grxml":"application/srgs+xml",".gz":"application/x-gzip",".htm":"text/html",".html":"text/html",".ico":"image/x-icon",".ics":"text/calendar",".ifb":"text/calendar",".iges":"model/iges",".igs":"model/iges",".jp2":"image/jp2",".jpe":"image/jpeg",".jpeg":"image/jpeg",".jpg":"image/jpeg",".kar":"audio/midi",".lha":"application/octet-stream",".lzh":"application/octet-stream",".m4a":"audio/mp4a-latm",".m4p":"audio/mp4a-latm",".m4u":"video/vnd.mpegurl",".m4v":"video/x-m4v",".mac":"image/x-macpaint",".mathml":"application/mathml+xml",".mesh":"model/mesh",".mid":"audio/midi",".midi":"audio/midi",".mov":"video/quicktime",".mp2":"audio/mpeg",".mp3":"audio/mpeg",".mp4":"video/mp4",".mpe":"video/mpeg",".mpeg":"video/mpeg",".mpg":"video/mpeg",".mpga":"audio/mpeg",".msh":"model/mesh",".nc":"application/x-netcdf",".oda":"application/oda",".ogv":"video/ogv",".pct":"image/pict",".pic":"image/pict",".pict":"image/pict",".pnt":"image/x-macpaint",".pntg":"image/x-macpaint",".ps":"application/postscript",".qt":"video/quicktime",".qti":"image/x-quicktime",".qtif":"image/x-quicktime",".ram":"audio/x-pn-realaudio",".rdf":"application/rdf+xml",".rm":"application/vnd.rn-realmedia",".roff":"application/x-troff",".sgm":"text/sgml",".sgml":"text/sgml",".silo":"model/mesh",".skd":"application/x-koan",".skm":"application/x-koan",".skp":"application/x-koan",".skt":"application/x-koan",".smi":"application/smil",".smil":"application/smil",".snd":"audio/basic",".so":"application/octet-stream",".svg":"image/svg+xml",".t":"application/x-troff",".texi":"application/x-texinfo",".texinfo":"application/x-texinfo",".tif":"image/tiff",".tiff":"image/tiff",".tr":"application/x-troff",".txt":"text/plain; charset=utf-8",".vrml":"model/vrml",".vxml":"application/voicexml+xml",".webm":"video/webm",".wrl":"model/vrml",".xht":"application/xhtml+xml",".xhtml":"application/xhtml+xml",".xml":"application/xml",".xsl":"application/xml",".xslt":"application/xslt+xml",".xul":"application/vnd.mozilla.xul+xml",".webp":"image/webp",".323":"text/h323",".aab":"application/x-authoware-bin",".aam":"application/x-authoware-map",".aas":"application/x-authoware-seg",".acx":"application/internet-property-stream",".als":"audio/X-Alpha5",".amc":"application/x-mpeg",".ani":"application/octet-stream",".asd":"application/astound",".asf":"video/x-ms-asf",".asn":"application/astound",".asp":"application/x-asap",".asr":"video/x-ms-asf",".asx":"video/x-ms-asf",".avb":"application/octet-stream",".awb":"audio/amr-wb",".axs":"application/olescript",".bas":"text/plain",".bin ":"application/octet-stream",".bld":"application/bld",".bld2":"application/bld2",".bpk":"application/octet-stream",".c":"text/plain",".cal":"image/x-cals",".cat":"application/vnd.ms-pkiseccat",".ccn":"application/x-cnc",".cco":"application/x-cocoa",".cer":"application/x-x509-ca-cert",".cgi":"magnus-internal/cgi",".chat":"application/x-chat",".clp":"application/x-msclip",".cmx":"image/x-cmx",".co":"application/x-cult3d-object",".cod":"image/cis-cod",".conf":"text/plain",".cpp":"text/plain",".crd":"application/x-mscardfile",".crl":"application/pkix-crl",".crt":"application/x-x509-ca-cert",".csm":"chemical/x-csml",".csml":"chemical/x-csml",".cur":"application/octet-stream",".dcm":"x-lml/x-evm",".dcx":"image/x-dcx",".der":"application/x-x509-ca-cert",".dhtml":"text/html",".dot":"application/msword",".dwf":"drawing/x-dwf",".dwg":"application/x-autocad",".dxf":"application/x-autocad",".ebk":"application/x-expandedbook",".emb":"chemical/x-embl-dl-nucleotide",".embl":"chemical/x-embl-dl-nucleotide",".epub":"application/epub+zip",".eri":"image/x-eri",".es":"audio/echospeech",".esl":"audio/echospeech",".etc":"application/x-earthtime",".evm":"x-lml/x-evm",".evy":"application/envoy",".fh4":"image/x-freehand",".fh5":"image/x-freehand",".fhc":"image/x-freehand",".fif":"application/fractals",".flr":"x-world/x-vrml",".fm":"application/x-maker",".fpx":"image/x-fpx",".fvi":"video/isivideo",".gau":"chemical/x-gaussian-input",".gca":"application/x-gca-compressed",".gdb":"x-lml/x-gdb",".gps":"application/x-gps",".h":"text/plain",".hdm":"text/x-hdml",".hdml":"text/x-hdml",".hlp":"application/winhlp",".hta":"application/hta",".htc":"text/x-component",".hts":"text/html",".htt":"text/webviewhtml",".ifm":"image/gif",".ifs":"image/ifs",".iii":"application/x-iphone",".imy":"audio/melody",".ins":"application/x-internet-signup",".ips":"application/x-ipscript",".ipx":"application/x-ipix",".isp":"application/x-internet-signup",".it":"audio/x-mod",".itz":"audio/x-mod",".ivr":"i-world/i-vrml",".j2k":"image/j2k",".jam":"application/x-jam",".java":"text/plain",".jfif":"image/pipeg",".jpz":"image/jpeg",".jwc":"application/jwc",".kjx":"application/x-kjx",".lak":"x-lml/x-lak",".lcc":"application/fastman",".lcl":"application/x-digitalloca",".lcr":"application/x-digitalloca",".lgh":"application/lgh",".lml":"x-lml/x-lml",".lmlpack":"x-lml/x-lmlpack",".log":"text/plain",".lsf":"video/x-la-asf",".lsx":"video/x-la-asf",".m13":"application/x-msmediaview",".m14":"application/x-msmediaview",".m15":"audio/x-mod",".m3url":"audio/x-mpegurl",".m4b":"audio/mp4a-latm",".ma1":"audio/ma1",".ma2":"audio/ma2",".ma3":"audio/ma3",".ma5":"audio/ma5",".map":"magnus-internal/imagemap",".mbd":"application/mbedlet",".mct":"application/x-mascot",".mdb":"application/x-msaccess",".mdz":"audio/x-mod",".mel":"text/x-vmel",".mht":"message/rfc822",".mhtml":"message/rfc822",".mi":"application/x-mif",".mil":"image/x-cals",".mio":"audio/x-mio",".mmf":"application/x-skt-lbs",".mng":"video/x-mng",".mny":"application/x-msmoney",".moc":"application/x-mocha",".mocha":"application/x-mocha",".mod":"audio/x-mod",".mof":"application/x-yumekara",".mol":"chemical/x-mdl-molfile",".mop":"chemical/x-mopac-input",".mpa":"video/mpeg",".mpc":"application/vnd.mpohun.certificate",".mpg4":"video/mp4",".mpn":"application/vnd.mophun.application",".mpp":"application/vnd.ms-project",".mps":"application/x-mapserver",".mpv2":"video/mpeg",".mrl":"text/x-mrml",".mrm":"application/x-mrm",".msg":"application/vnd.ms-outlook",".mts":"application/metastream",".mtx":"application/metastream",".mtz":"application/metastream",".mvb":"application/x-msmediaview",".mzv":"application/metastream",".nar":"application/zip",".nbmp":"image/nbmp",".ndb":"x-lml/x-ndb",".ndwn":"application/ndwn",".nif":"application/x-nif",".nmz":"application/x-scream",".nokia-op-logo":"image/vnd.nok-oplogo-color",".npx":"application/x-netfpx",".nsnd":"audio/nsnd",".nva":"application/x-neva1",".nws":"message/rfc822",".oom":"application/x-AtlasMate-Plugin",".p10":"application/pkcs10",".p12":"application/x-pkcs12",".p7b":"application/x-pkcs7-certificates",".p7c":"application/x-pkcs7-mime",".p7m":"application/x-pkcs7-mime",".p7r":"application/x-pkcs7-certreqresp",".p7s":"application/x-pkcs7-signature",".pac":"audio/x-pac",".pae":"audio/x-epac",".pan":"application/x-pan",".pcx":"image/x-pcx",".pda":"image/x-pda",".pfr":"application/font-tdpfr",".pfx":"application/x-pkcs12",".pko":"application/ynd.ms-pkipko",".pm":"application/x-perl",".pma":"application/x-perfmon",".pmc":"application/x-perfmon",".pmd":"application/x-pmd",".pml":"application/x-perfmon",".pmr":"application/x-perfmon",".pmw":"application/x-perfmon",".pnz":"image/png",".pot,":"application/vnd.ms-powerpoint",".pps":"application/vnd.ms-powerpoint",".pqf":"application/x-cprplayer",".pqi":"application/cprplayer",".prc":"application/x-prc",".prf":"application/pics-rules",".prop":"text/plain",".proxy":"application/x-ns-proxy-autoconfig",".ptlk":"application/listenup",".pub":"application/x-mspublisher",".pvx":"video/x-pv-pvx",".qcp":"audio/vnd.qcelp",".r3t":"text/vnd.rn-realtext3d",".rar":"application/octet-stream",".rc":"text/plain",".rf":"image/vnd.rn-realflash",".rlf":"application/x-richlink",".rmf":"audio/x-rmf",".rmi":"audio/mid",".rmm":"audio/x-pn-realaudio",".rmvb":"audio/x-pn-realaudio",".rnx":"application/vnd.rn-realplayer",".rp":"image/vnd.rn-realpix",".rt":"text/vnd.rn-realtext",".rte":"x-lml/x-gps",".rtg":"application/metastream",".rv":"video/vnd.rn-realvideo",".rwc":"application/x-rogerwilco",".s3m":"audio/x-mod",".s3z":"audio/x-mod",".sca":"application/x-supercard",".scd":"application/x-msschedule",".sct":"text/scriptlet",".sdf":"application/e-score",".sea":"application/x-stuffit",".setpay":"application/set-payment_old-initiation",".setreg":"application/set-registration-initiation",".shtml":"text/html",".shtm":"text/html",".shw":"application/presentations",".si6":"image/si6",".si7":"image/vnd.stiwap.sis",".si9":"image/vnd.lgtwap.sis",".slc":"application/x-salsa",".smd":"audio/x-smd",".smp":"application/studiom",".smz":"audio/x-smd",".spc":"application/x-pkcs7-certificates",".spr":"application/x-sprite",".sprite":"application/x-sprite",".sdp":"application/sdp",".spt":"application/x-spt",".sst":"application/vnd.ms-pkicertstore",".stk":"application/hyperstudio",".stl":"application/vnd.ms-pkistl",".stm":"text/html",".svf":"image/vnd",".svh":"image/svh",".svr":"x-world/x-svr",".swfl":"application/x-shockwave-flash",".tad":"application/octet-stream",".talk":"text/x-speech",".taz":"application/x-tar",".tbp":"application/x-timbuktu",".tbt":"application/x-timbuktu",".tgz":"application/x-compressed",".thm":"application/vnd.eri.thm",".tki":"application/x-tkined",".tkined":"application/x-tkined",".toc":"application/toc",".toy":"image/toy",".trk":"x-lml/x-gps",".trm":"application/x-msterminal",".tsi":"audio/tsplayer",".tsp":"application/dsptype",".ttf":"application/octet-stream",".ttz":"application/t-time",".uls":"text/iuls",".ult":"audio/x-mod",".uu":"application/x-uuencode",".uue":"application/x-uuencode",".vcf":"text/x-vcard",".vdo":"video/vdo",".vib":"audio/vib",".viv":"video/vivo",".vivo":"video/vivo",".vmd":"application/vocaltec-media-desc",".vmf":"application/vocaltec-media-file",".vmi":"application/x-dreamcast-vms-info",".vms":"application/x-dreamcast-vms",".vox":"audio/voxware",".vqe":"audio/x-twinvq-plugin",".vqf":"audio/x-twinvq",".vql":"audio/x-twinvq",".vre":"x-world/x-vream",".vrt":"x-world/x-vrt",".vrw":"x-world/x-vream",".vts":"workbook/formulaone",".wcm":"application/vnd.ms-works",".wdb":"application/vnd.ms-works",".web":"application/vnd.xara",".wi":"image/wavelet",".wis":"application/x-InstallShield",".wks":"application/vnd.ms-works",".wmd":"application/x-ms-wmd",".wmf":"application/x-msmetafile",".wmlscript":"text/vnd.wap.wmlscript",".wmz":"application/x-ms-wmz",".wpng":"image/x-up-wpng",".wps":"application/vnd.ms-works",".wpt":"x-lml/x-gps",".wri":"application/x-mswrite",".wrz":"x-world/x-vrml",".ws":"text/vnd.wap.wmlscript",".wsc":"application/vnd.wap.wmlscriptc",".wv":"video/wavelet",".wxl":"application/x-wxl",".x-gzip":"application/x-gzip",".xaf":"x-world/x-vrml",".xar":"application/vnd.xara",".xdm":"application/x-xdma",".xdma":"application/x-xdma",".xdw":"application/vnd.fujixerox.docuworks",".xhtm":"application/xhtml+xml",".xla":"application/vnd.ms-excel",".xlc":"application/vnd.ms-excel",".xll":"application/x-excel",".xlm":"application/vnd.ms-excel",".xlt":"application/vnd.ms-excel",".xlw":"application/vnd.ms-excel",".xm":"audio/x-mod",".xmz":"audio/x-mod",".xof":"x-world/x-vrml",".xpi":"application/x-xpinstall",".xsit":"text/xml",".yz1":"application/x-yz1",".z":"application/x-compress",".zac":"application/x-zaurus-zac",".json":"application/json"}`,
-	"file_viewers":                               `[{"viewers":[{"id":"music","type":"builtin","action":"view","display_name":"fileManager.musicPlayer","exts":["mp3","ogg","wav","flac","m4a"]},{"id":"epub","type":"builtin","action":"view","display_name":"fileManager.epubViewer","exts":["epub"]},{"id":"googledocs","type":"custom","action":"view","display_name":"fileManager.googledocs","icon":"/static/img/viewers/gdrive.png","url":"https://docs.google.com/gview?url={$src}&embedded=true","exts":["jpeg","png","gif","tiff","bmp","webm","mpeg4","3gpp","mov","avi","mpegps","wmv","flv","txt","css","html","php","c","cpp","h","hpp","js","doc","docx","xls","xlsx","ppt","pptx","pdf","pages","ai","psd","tiff","dxf","svg","eps","ps","ttf","xps"],"max_size":26214400},{"id":"m365online","type":"custom","action":"view","display_name":"fileManager.m365viewer","icon":"/static/img/viewers/m365.svg","url":"https://view.officeapps.live.com/op/view.aspx?src={$src}","exts":["doc","docx","docm","dotm","dotx","xlsx","xlsb","xls","xlsm","pptx","ppsx","ppt","pps","pptm","potm","ppam","potx","ppsm"],"max_size":10485760},{"id":"pdf","type":"builtin","action":"view","display_name":"fileManager.pdfViewer","exts":["pdf"]},{"id":"video","type":"builtin","action":"view","icon":"/static/img/viewers/artplayer.png","display_name":"Artplayer","exts":["mp4","mkv","webm","avi","m3u8","mov","flv"]},{"id":"markdown","type":"builtin","action":"edit","display_name":"fileManager.markdownEditor","exts":["md"],"templates":[{"ext":"md","display_name":"Markdown"}]},{"id":"drawio","type":"builtin","action":"edit","icon":"/static/img/viewers/drawio.svg","display_name":"draw.io","exts":["drawio","dwb"],"props":{"host":"https://embed.diagrams.net"},"templates":[{"ext":"drawio","display_name":"fileManager.diagram"},{"ext":"dwb","display_name":"fileManager.whiteboard"}]},{"id":"image","type":"builtin","action":"edit","display_name":"fileManager.imageViewer","exts":["bmp","png","gif","jpg","jpeg","svg","webp","heic","heif"]},{"id":"monaco","type":"builtin","action":"edit","icon":"/static/img/viewers/monaco.svg","display_name":"fileManager.monacoEditor","exts":["md","txt","json","php","py","bat","c","h","cpp","hpp","cs","css","dockerfile","go","html","htm","ini","java","js","jsx","less","lua","sh","sql","xml","yaml"],"templates":[{"ext":"txt","display_name":"fileManager.text"}]},{"id":"photopea","type":"builtin","icon":"/static/img/viewers/photopea.png","action":"edit","display_name":"Photopea","exts":["psd","ai","indd","xcf","xd","fig","kri","clip","pxd","pxz","cdr","ufo","afphoyo","svg","esp","pdf","pdn","wmf","emf","png","jpg","jpeg","gif","webp","ico","icns","bmp","avif","heic","jxl","ppm","pgm","pbm","tiff","dds","iff","anim","tga","dng","nef","cr2","cr3","arw","rw2","raf","orf","gpr","3fr","fff"]},{"id":"excalidraw","type":"builtin","action":"view","icon":"/static/img/viewers/excalidraw.svg","display_name":"Excalidraw","exts":["excalidraw"],"templates":[{"ext":"excalidraw","display_name":"Excalidraw"}]}]}]`,
 	"logto_enabled":                              "0",
 	"logto_config":                               `{"direct_sign_in":true,"display_name":"vas.sso"}`,
 	"qq_login":                                   `0`,
 	"qq_login_config":                            `{"direct_sign_in":false}`,
 	"license":                                    "",
 }
+
+func init() {
+	explorerIcons, err := json.Marshal(defaultIcons)
+	if err != nil {
+		panic(err)
+	}
+	DefaultSettings["explorer_icons"] = string(explorerIcons)
+
+	viewers, err := json.Marshal(defaultFileViewers)
+	if err != nil {
+		panic(err)
+	}
+
+	DefaultSettings["file_viewers"] = string(viewers)
+}
diff --git a/inventory/types/types.go b/inventory/types/types.go
index 3cadc33..2e6b9df 100644
--- a/inventory/types/types.go
+++ b/inventory/types/types.go
@@ -178,6 +178,14 @@ type (
 		// Whether to share view setting from owner
 		ShareView bool `json:"share_view,omitempty"`
 	}
+
+	FileTypeIconSetting struct {
+		Exts      []string `json:"exts"`
+		Icon      string   `json:"icon,omitempty"`
+		Color     string   `json:"color,omitempty"`
+		ColorDark string   `json:"color_dark,omitempty"`
+		Img       string   `json:"img,omitempty"`
+	}
 )
 
 const (
@@ -250,3 +258,40 @@ const (
 	DownloaderProviderAria2       = DownloaderProvider("aria2")
 	DownloaderProviderQBittorrent = DownloaderProvider("qbittorrent")
 )
+
+type (
+	ViewerAction string
+	ViewerType   string
+)
+
+const (
+	ViewerActionView = "view"
+	ViewerActionEdit = "edit"
+
+	ViewerTypeBuiltin = "builtin"
+	ViewerTypeWopi    = "wopi"
+	ViewerTypeCustom  = "custom"
+)
+
+type Viewer struct {
+	ID          string                             `json:"id"`
+	Type        ViewerType                         `json:"type"`
+	DisplayName string                             `json:"display_name"`
+	Exts        []string                           `json:"exts"`
+	Url         string                             `json:"url,omitempty"`
+	Icon        string                             `json:"icon,omitempty"`
+	WopiActions map[string]map[ViewerAction]string `json:"wopi_actions,omitempty"`
+	Props       map[string]string                  `json:"props,omitempty"`
+	MaxSize     int64                              `json:"max_size,omitempty"`
+	Disabled    bool                               `json:"disabled,omitempty"`
+	Templates   []NewFileTemplate                  `json:"templates,omitempty"`
+}
+
+type ViewerGroup struct {
+	Viewers []Viewer `json:"viewers"`
+}
+
+type NewFileTemplate struct {
+	Ext         string `json:"ext"`
+	DisplayName string `json:"display_name"`
+}
diff --git a/middleware/wopi.go b/middleware/wopi.go
index 0d46866..8e498e1 100644
--- a/middleware/wopi.go
+++ b/middleware/wopi.go
@@ -2,9 +2,9 @@ package middleware
 
 import (
 	"github.com/cloudreve/Cloudreve/v4/application/dependency"
+	"github.com/cloudreve/Cloudreve/v4/inventory/types"
 	"github.com/cloudreve/Cloudreve/v4/pkg/filemanager/manager"
 	"github.com/cloudreve/Cloudreve/v4/pkg/hashid"
-	"github.com/cloudreve/Cloudreve/v4/pkg/setting"
 	"github.com/cloudreve/Cloudreve/v4/pkg/util"
 	"github.com/cloudreve/Cloudreve/v4/pkg/wopi"
 	"github.com/gin-gonic/gin"
@@ -67,7 +67,7 @@ func ViewerSessionValidation() gin.HandlerFunc {
 
 		// Check if the viewer is still available
 		viewers := settings.FileViewers(c)
-		var v *setting.Viewer
+		var v *types.Viewer
 		for _, group := range viewers {
 			for _, viewer := range group.Viewers {
 				if viewer.ID == session.ViewerID && !viewer.Disabled {
diff --git a/pkg/filemanager/manager/manager.go b/pkg/filemanager/manager/manager.go
index 5dcda16..6cce600 100644
--- a/pkg/filemanager/manager/manager.go
+++ b/pkg/filemanager/manager/manager.go
@@ -54,7 +54,7 @@ type (
 		// UpsertMedata update or insert metadata of given file
 		PatchMedata(ctx context.Context, path []*fs.URI, data ...fs.MetadataPatch) error
 		// CreateViewerSession creates a viewer session for given file
-		CreateViewerSession(ctx context.Context, uri *fs.URI, version string, viewer *setting.Viewer) (*ViewerSession, error)
+		CreateViewerSession(ctx context.Context, uri *fs.URI, version string, viewer *types.Viewer) (*ViewerSession, error)
 		// TraverseFile traverses a file to its root file, return the file with linked root.
 		TraverseFile(ctx context.Context, fileID int) (fs.File, error)
 	}
diff --git a/pkg/filemanager/manager/viewer.go b/pkg/filemanager/manager/viewer.go
index 819ef31..30fd8a6 100644
--- a/pkg/filemanager/manager/viewer.go
+++ b/pkg/filemanager/manager/viewer.go
@@ -9,7 +9,6 @@ import (
 	"github.com/cloudreve/Cloudreve/v4/inventory/types"
 	"github.com/cloudreve/Cloudreve/v4/pkg/filemanager/fs"
 	"github.com/cloudreve/Cloudreve/v4/pkg/filemanager/fs/dbfs"
-	"github.com/cloudreve/Cloudreve/v4/pkg/setting"
 	"github.com/cloudreve/Cloudreve/v4/pkg/util"
 	"github.com/gofrs/uuid"
 )
@@ -44,7 +43,7 @@ func init() {
 	gob.Register(ViewerSessionCache{})
 }
 
-func (m *manager) CreateViewerSession(ctx context.Context, uri *fs.URI, version string, viewer *setting.Viewer) (*ViewerSession, error) {
+func (m *manager) CreateViewerSession(ctx context.Context, uri *fs.URI, version string, viewer *types.Viewer) (*ViewerSession, error) {
 	file, err := m.fs.Get(ctx, uri, dbfs.WithFileEntities(), dbfs.WithNotRoot())
 	if err != nil {
 		return nil, err
@@ -88,6 +87,6 @@ func ViewerSessionFromContext(ctx context.Context) *ViewerSessionCache {
 	return ctx.Value(ViewerSessionCacheCtx{}).(*ViewerSessionCache)
 }
 
-func ViewerFromContext(ctx context.Context) *setting.Viewer {
-	return ctx.Value(ViewerCtx{}).(*setting.Viewer)
+func ViewerFromContext(ctx context.Context) *types.Viewer {
+	return ctx.Value(ViewerCtx{}).(*types.Viewer)
 }
diff --git a/pkg/setting/provider.go b/pkg/setting/provider.go
index 2b37922..b3005e3 100644
--- a/pkg/setting/provider.go
+++ b/pkg/setting/provider.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"github.com/cloudreve/Cloudreve/v4/inventory/types"
 	"net/url"
 	"strconv"
 	"strings"
@@ -169,7 +170,7 @@ type (
 		// FolderPropsCacheTTL returns the cache TTL of folder summary.
 		FolderPropsCacheTTL(ctx context.Context) int
 		// FileViewers returns the file viewers settings.
-		FileViewers(ctx context.Context) []ViewerGroup
+		FileViewers(ctx context.Context) []types.ViewerGroup
 		// ViewerSessionTTL returns the TTL of viewer session.
 		ViewerSessionTTL(ctx context.Context) int
 		// MimeMapping returns the extension to MIME mapping settings.
@@ -232,11 +233,11 @@ func (s *settingProvider) Avatar(ctx context.Context) *Avatar {
 	}
 }
 
-func (s *settingProvider) FileViewers(ctx context.Context) []ViewerGroup {
+func (s *settingProvider) FileViewers(ctx context.Context) []types.ViewerGroup {
 	raw := s.getString(ctx, "file_viewers", "[]")
-	var viewers []ViewerGroup
+	var viewers []types.ViewerGroup
 	if err := json.Unmarshal([]byte(raw), &viewers); err != nil {
-		return []ViewerGroup{}
+		return []types.ViewerGroup{}
 	}
 
 	return viewers
diff --git a/pkg/setting/types.go b/pkg/setting/types.go
index d3e4d5e..a31337a 100644
--- a/pkg/setting/types.go
+++ b/pkg/setting/types.go
@@ -176,42 +176,6 @@ type MapSetting struct {
 
 // Viewer related
 
-type (
-	ViewerAction string
-	ViewerType   string
-)
-
-const (
-	ViewerActionView = "view"
-	ViewerActionEdit = "edit"
-
-	ViewerTypeBuiltin = "builtin"
-	ViewerTypeWopi    = "wopi"
-)
-
-type Viewer struct {
-	ID          string                             `json:"id"`
-	Type        ViewerType                         `json:"type"`
-	DisplayName string                             `json:"display_name"`
-	Exts        []string                           `json:"exts"`
-	Url         string                             `json:"url,omitempty"`
-	Icon        string                             `json:"icon,omitempty"`
-	WopiActions map[string]map[ViewerAction]string `json:"wopi_actions,omitempty"`
-	Props       map[string]string                  `json:"props,omitempty"`
-	MaxSize     int64                              `json:"max_size,omitempty"`
-	Disabled    bool                               `json:"disabled,omitempty"`
-	Templates   []NewFileTemplate                  `json:"templates,omitempty"`
-}
-
-type ViewerGroup struct {
-	Viewers []Viewer `json:"viewers"`
-}
-
-type NewFileTemplate struct {
-	Ext         string `json:"ext"`
-	DisplayName string `json:"display_name"`
-}
-
 type (
 	SearchCategory string
 )
diff --git a/pkg/wopi/discovery.go b/pkg/wopi/discovery.go
index 6411730..42918c8 100644
--- a/pkg/wopi/discovery.go
+++ b/pkg/wopi/discovery.go
@@ -3,7 +3,7 @@ package wopi
 import (
 	"encoding/xml"
 	"fmt"
-	"github.com/cloudreve/Cloudreve/v4/pkg/setting"
+	"github.com/cloudreve/Cloudreve/v4/inventory/types"
 	"github.com/gofrs/uuid"
 	"github.com/samber/lo"
 )
@@ -16,23 +16,23 @@ var (
 	ActionEdit            = ActonType("edit")
 )
 
-func DiscoveryXmlToViewerGroup(xmlStr string) (*setting.ViewerGroup, error) {
+func DiscoveryXmlToViewerGroup(xmlStr string) (*types.ViewerGroup, error) {
 	var discovery WopiDiscovery
 	if err := xml.Unmarshal([]byte(xmlStr), &discovery); err != nil {
 		return nil, fmt.Errorf("failed to parse WOPI discovery XML: %w", err)
 	}
 
-	group := &setting.ViewerGroup{
-		Viewers: make([]setting.Viewer, 0, len(discovery.NetZone.App)),
+	group := &types.ViewerGroup{
+		Viewers: make([]types.Viewer, 0, len(discovery.NetZone.App)),
 	}
 
 	for _, app := range discovery.NetZone.App {
-		viewer := setting.Viewer{
+		viewer := types.Viewer{
 			ID:          uuid.Must(uuid.NewV4()).String(),
 			DisplayName: app.Name,
-			Type:        setting.ViewerTypeWopi,
+			Type:        types.ViewerTypeWopi,
 			Icon:        app.FavIconUrl,
-			WopiActions: make(map[string]map[setting.ViewerAction]string),
+			WopiActions: make(map[string]map[types.ViewerAction]string),
 		}
 
 		for _, action := range app.Action {
@@ -41,21 +41,21 @@ func DiscoveryXmlToViewerGroup(xmlStr string) (*setting.ViewerGroup, error) {
 			}
 
 			if _, ok := viewer.WopiActions[action.Ext]; !ok {
-				viewer.WopiActions[action.Ext] = make(map[setting.ViewerAction]string)
+				viewer.WopiActions[action.Ext] = make(map[types.ViewerAction]string)
 			}
 
 			if action.Name == string(ActionPreview) {
-				viewer.WopiActions[action.Ext][setting.ViewerActionView] = action.Urlsrc
+				viewer.WopiActions[action.Ext][types.ViewerActionView] = action.Urlsrc
 			} else if action.Name == string(ActionPreviewFallback) {
-				viewer.WopiActions[action.Ext][setting.ViewerActionView] = action.Urlsrc
+				viewer.WopiActions[action.Ext][types.ViewerActionView] = action.Urlsrc
 			} else if action.Name == string(ActionEdit) {
-				viewer.WopiActions[action.Ext][setting.ViewerActionEdit] = action.Urlsrc
+				viewer.WopiActions[action.Ext][types.ViewerActionEdit] = action.Urlsrc
 			} else if len(viewer.WopiActions[action.Ext]) == 0 {
 				delete(viewer.WopiActions, action.Ext)
 			}
 		}
 
-		viewer.Exts = lo.MapToSlice(viewer.WopiActions, func(key string, value map[setting.ViewerAction]string) string {
+		viewer.Exts = lo.MapToSlice(viewer.WopiActions, func(key string, value map[types.ViewerAction]string) string {
 			return key
 		})
 
diff --git a/pkg/wopi/wopi.go b/pkg/wopi/wopi.go
index c158987..9664afb 100644
--- a/pkg/wopi/wopi.go
+++ b/pkg/wopi/wopi.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"github.com/cloudreve/Cloudreve/v4/inventory/types"
 	"net/url"
 	"strings"
 	"time"
@@ -56,7 +57,7 @@ const (
 	LockDuration = time.Duration(30) * time.Minute
 )
 
-func GenerateWopiSrc(ctx context.Context, action setting.ViewerAction, viewer *setting.Viewer, viewerSession *manager.ViewerSession) (*url.URL, error) {
+func GenerateWopiSrc(ctx context.Context, action types.ViewerAction, viewer *types.Viewer, viewerSession *manager.ViewerSession) (*url.URL, error) {
 	dep := dependency.FromContext(ctx)
 	base := dep.SettingProvider().SiteURL(setting.UseFirstSiteUrl(ctx))
 	hasher := dep.HashIDEncoder()
@@ -69,7 +70,7 @@ func GenerateWopiSrc(ctx context.Context, action setting.ViewerAction, viewer *s
 	var (
 		src string
 	)
-	fallbackOrder := []setting.ViewerAction{action, setting.ViewerActionView, setting.ViewerActionEdit}
+	fallbackOrder := []types.ViewerAction{action, types.ViewerActionView, types.ViewerActionEdit}
 	for _, a := range fallbackOrder {
 		if src, ok = availableActions[a]; ok {
 			break
diff --git a/service/admin/tools.go b/service/admin/tools.go
index 20dc90f..9409b94 100644
--- a/service/admin/tools.go
+++ b/service/admin/tools.go
@@ -12,6 +12,7 @@ import (
 	"github.com/cloudreve/Cloudreve/v4/pkg/serializer"
 	"github.com/cloudreve/Cloudreve/v4/pkg/setting"
 	"github.com/cloudreve/Cloudreve/v4/pkg/wopi"
+	"github.com/cloudreve/Cloudreve/v4/inventory/types"
 	"github.com/gin-gonic/gin"
 	"github.com/go-mail/mail"
 )
@@ -107,7 +108,7 @@ type (
 	FetchWOPIDiscoveryParamCtx struct{}
 )
 
-func (s *FetchWOPIDiscoveryService) Fetch(c *gin.Context) (*setting.ViewerGroup, error) {
+func (s *FetchWOPIDiscoveryService) Fetch(c *gin.Context) (*types.ViewerGroup, error) {
 	dep := dependency.FromContext(c)
 	requestClient := dep.RequestClient(request2.WithContext(c), request2.WithLogger(dep.Logger()))
 	content, err := requestClient.Request("GET", s.Endpoint, nil).CheckHTTPResponse(http.StatusOK).GetResponse()
diff --git a/service/basic/site.go b/service/basic/site.go
index d291a25..7a54d15 100644
--- a/service/basic/site.go
+++ b/service/basic/site.go
@@ -3,6 +3,7 @@ package basic
 import (
 	"github.com/cloudreve/Cloudreve/v4/application/dependency"
 	"github.com/cloudreve/Cloudreve/v4/inventory"
+	"github.com/cloudreve/Cloudreve/v4/inventory/types"
 	"github.com/cloudreve/Cloudreve/v4/pkg/setting"
 	"github.com/cloudreve/Cloudreve/v4/service/user"
 	"github.com/gin-gonic/gin"
@@ -39,7 +40,7 @@ type SiteConfig struct {
 	EmojiPreset       string                    `json:"emoji_preset,omitempty"`
 	MapProvider       setting.MapProvider       `json:"map_provider,omitempty"`
 	GoogleMapTileType setting.MapGoogleTileType `json:"google_map_tile_type,omitempty"`
-	FileViewers       []setting.ViewerGroup     `json:"file_viewers,omitempty"`
+	FileViewers       []types.ViewerGroup       `json:"file_viewers,omitempty"`
 	MaxBatchSize      int                       `json:"max_batch_size,omitempty"`
 	ThumbnailWidth    int                       `json:"thumbnail_width,omitempty"`
 	ThumbnailHeight   int                       `json:"thumbnail_height,omitempty"`
diff --git a/service/explorer/viewer.go b/service/explorer/viewer.go
index d8ebc88..f8fd01b 100644
--- a/service/explorer/viewer.go
+++ b/service/explorer/viewer.go
@@ -21,7 +21,6 @@ import (
 	"github.com/cloudreve/Cloudreve/v4/pkg/filemanager/manager/entitysource"
 	"github.com/cloudreve/Cloudreve/v4/pkg/hashid"
 	"github.com/cloudreve/Cloudreve/v4/pkg/serializer"
-	"github.com/cloudreve/Cloudreve/v4/pkg/setting"
 	"github.com/cloudreve/Cloudreve/v4/pkg/wopi"
 	"github.com/gin-gonic/gin"
 )
@@ -371,7 +370,7 @@ type (
 		Uri             string               `json:"uri" form:"uri" binding:"required"`
 		Version         string               `json:"version" form:"version"`
 		ViewerID        string               `json:"viewer_id" form:"viewer_id" binding:"required"`
-		PreferredAction setting.ViewerAction `json:"preferred_action" form:"preferred_action" binding:"required"`
+		PreferredAction types.ViewerAction `json:"preferred_action" form:"preferred_action" binding:"required"`
 	}
 	CreateViewerSessionParamCtx struct{}
 )
@@ -389,7 +388,7 @@ func (s *CreateViewerSessionService) Create(c *gin.Context) (*ViewerSessionRespo
 
 	// Find the given viewer
 	viewers := dep.SettingProvider().FileViewers(c)
-	var targetViewer *setting.Viewer
+	var targetViewer *types.Viewer
 	for _, group := range viewers {
 		for _, viewer := range group.Viewers {
 			if viewer.ID == s.ViewerID && !viewer.Disabled {
@@ -413,7 +412,7 @@ func (s *CreateViewerSessionService) Create(c *gin.Context) (*ViewerSessionRespo
 	}
 
 	res := &ViewerSessionResponse{Session: viewerSession}
-	if targetViewer.Type == setting.ViewerTypeWopi {
+	if targetViewer.Type == types.ViewerTypeWopi {
 		// For WOPI viewer, generate WOPI src
 		wopiSrc, err := wopi.GenerateWopiSrc(c, s.PreferredAction, targetViewer, viewerSession)
 		if err != nil {