diff --git a/Library/Database/Databse.swift b/Library/Database/Databse.swift
index fea031b..c179201 100644
--- a/Library/Database/Databse.swift
+++ b/Library/Database/Databse.swift
@@ -1,40 +1,39 @@
 import Foundation
 import GRDB
 
-actor Database {
-    private static var writer: (any DatabaseWriter)?
+enum Database {
+    static let sharedWriter = makeShared()
 
-    static func sharedWriter() throws -> any DatabaseWriter {
-        if let writer {
-            return writer
-        }
-        try FileManager.default.createDirectory(at: FilePath.sharedDirectory, withIntermediateDirectories: true)
-        let database = try DatabasePool(path: FilePath.sharedDirectory.appendingPathComponent("settings.db").relativePath)
-        var migrator = DatabaseMigrator().disablingDeferredForeignKeyChecks()
-        migrator.registerMigration("initialize") { db in
-            try db.create(table: "profiles") { t in
-                t.autoIncrementedPrimaryKey("id")
-                t.column("name", .text).notNull()
-                t.column("order", .integer).notNull()
-                t.column("type", .integer).notNull().defaults(to: ProfileType.local.rawValue)
-                t.column("path", .text).notNull()
-                t.column("remoteURL", .text)
-                t.column("autoUpdate", .boolean).notNull().defaults(to: false)
-                t.column("lastUpdated", .datetime)
-            }
-            try db.create(table: "preferences") { t in
-                t.primaryKey("name", .text, onConflict: .replace).notNull()
-                t.column("data", .blob)
+    private static func makeShared() -> any DatabaseWriter {
+        do {
+            try FileManager.default.createDirectory(at: FilePath.sharedDirectory, withIntermediateDirectories: true)
+            let database = try DatabasePool(path: FilePath.sharedDirectory.appendingPathComponent("settings.db").relativePath)
+            var migrator = DatabaseMigrator().disablingDeferredForeignKeyChecks()
+            migrator.registerMigration("initialize") { db in
+                try db.create(table: "profiles") { t in
+                    t.autoIncrementedPrimaryKey("id")
+                    t.column("name", .text).notNull()
+                    t.column("order", .integer).notNull()
+                    t.column("type", .integer).notNull().defaults(to: ProfileType.local.rawValue)
+                    t.column("path", .text).notNull()
+                    t.column("remoteURL", .text)
+                    t.column("autoUpdate", .boolean).notNull().defaults(to: false)
+                    t.column("lastUpdated", .datetime)
+                }
+                try db.create(table: "preferences") { t in
+                    t.primaryKey("name", .text, onConflict: .replace).notNull()
+                    t.column("data", .blob)
+                }
             }
-        }
-        migrator.registerMigration("add_auto_update_interval") { db in
-            try db.alter(table: "profiles") { t in
-                t.add(column: "autoUpdateInterval", .integer).notNull().defaults(to: 0)
+            migrator.registerMigration("add_auto_update_interval") { db in
+                try db.alter(table: "profiles") { t in
+                    t.add(column: "autoUpdateInterval", .integer).notNull().defaults(to: 0)
+                }
             }
+            try migrator.migrate(database)
+            return database
+        } catch {
+            fatalError(error.localizedDescription)
         }
-
-        try migrator.migrate(database)
-        writer = database
-        return database
     }
 }
diff --git a/Library/Database/ProfileManager.swift b/Library/Database/ProfileManager.swift
index c004d62..1032305 100644
--- a/Library/Database/ProfileManager.swift
+++ b/Library/Database/ProfileManager.swift
@@ -4,37 +4,37 @@ import GRDB
 public enum ProfileManager {
     public nonisolated static func create(_ profile: Profile) async throws {
         profile.order = try await nextOrder()
-        try await Database.sharedWriter().write { db in
+        try await Database.sharedWriter.write { db in
             try profile.insert(db, onConflict: .fail)
         }
     }
 
     public nonisolated static func get(_ profileID: Int64) async throws -> Profile? {
-        try await Database.sharedWriter().read { db in
+        try await Database.sharedWriter.read { db in
             try Profile.fetchOne(db, id: profileID)
         }
     }
 
     public nonisolated static func get(by profileName: String) async throws -> Profile? {
-        try await Database.sharedWriter().read { db in
+        try await Database.sharedWriter.read { db in
             try Profile.filter(Column("name") == profileName).fetchOne(db)
         }
     }
 
     public nonisolated static func delete(_ profile: Profile) async throws {
-        _ = try await Database.sharedWriter().write { db in
+        _ = try await Database.sharedWriter.write { db in
             try profile.delete(db)
         }
     }
 
     public nonisolated static func delete(by id: Int64) async throws {
-        _ = try await Database.sharedWriter().write { db in
+        _ = try await Database.sharedWriter.write { db in
             try Profile.deleteOne(db, id: id)
         }
     }
 
     public nonisolated static func delete(_ profileList: [Profile]) async throws -> Int {
-        try await Database.sharedWriter().write { db in
+        try await Database.sharedWriter.write { db in
             try Profile.deleteAll(db, keys: profileList.map {
                 ["id": $0.id!]
             })
@@ -42,20 +42,20 @@ public enum ProfileManager {
     }
 
     public nonisolated static func delete(by id: [Int64]) async throws -> Int {
-        try await Database.sharedWriter().write { db in
+        try await Database.sharedWriter.write { db in
             try Profile.deleteAll(db, ids: id)
         }
     }
 
     public nonisolated static func update(_ profile: Profile) async throws {
-        _ = try await Database.sharedWriter().write { db in
+        _ = try await Database.sharedWriter.write { db in
             try profile.updateChanges(db)
         }
     }
 
     public nonisolated static func update(_ profileList: [Profile]) async throws {
         // TODO: batch update
-        try await Database.sharedWriter().write { db in
+        try await Database.sharedWriter.write { db in
             for profile in profileList {
                 try profile.updateChanges(db)
             }
@@ -63,25 +63,25 @@ public enum ProfileManager {
     }
 
     public nonisolated static func list() async throws -> [Profile] {
-        try await Database.sharedWriter().read { db in
+        try await Database.sharedWriter.read { db in
             try Profile.all().order(Column("order").asc).fetchAll(db)
         }
     }
 
     public nonisolated static func listRemote() async throws -> [Profile] {
-        try await Database.sharedWriter().read { db in
+        try await Database.sharedWriter.read { db in
             try Profile.filter(Column("type") == ProfileType.remote.rawValue).order(Column("order").asc).fetchAll(db)
         }
     }
 
     public nonisolated static func listAutoUpdateEnabled() async throws -> [Profile] {
-        try await Database.sharedWriter().read { db in
+        try await Database.sharedWriter.read { db in
             try Profile.filter(Column("autoUpdate") == true).order(Column("order").asc).fetchAll(db)
         }
     }
 
     public nonisolated static func nextID() async throws -> Int64 {
-        try await Database.sharedWriter().read { db in
+        try await Database.sharedWriter.read { db in
             if let lastProfile = try Profile.select(Column("id")).order(Column("id").desc).fetchOne(db) {
                 return lastProfile.id! + 1
             } else {
@@ -91,7 +91,7 @@ public enum ProfileManager {
     }
 
     private nonisolated static func nextOrder() async throws -> UInt32 {
-        try await Database.sharedWriter().read { db in
+        try await Database.sharedWriter.read { db in
             try UInt32(Profile.fetchCount(db))
         }
     }
diff --git a/Library/Database/ShadredPreferences+Database.swift b/Library/Database/ShadredPreferences+Database.swift
index 2cd9056..3dc9b13 100644
--- a/Library/Database/ShadredPreferences+Database.swift
+++ b/Library/Database/ShadredPreferences+Database.swift
@@ -37,7 +37,7 @@ extension SharedPreferences {
     }
 
     private nonisolated static func read<T: Codable>(_ name: String) async throws -> T? {
-        guard let item = try await (Database.sharedWriter().read { db in
+        guard let item = try await (Database.sharedWriter.read { db in
             try Item.fetchOne(db, id: name)
         })
         else {
@@ -48,12 +48,12 @@ extension SharedPreferences {
 
     private nonisolated static func write(_ name: String, _ value: (some Codable)?) async throws {
         if value == nil {
-            _ = try await Database.sharedWriter().write { db in
+            _ = try await Database.sharedWriter.write { db in
                 try Item.deleteOne(db, id: name)
             }
         } else {
             let data = try BinaryEncoder().encode(value)
-            try await Database.sharedWriter().write { db in
+            try await Database.sharedWriter.write { db in
                 try Item(name: name, data: data).insert(db)
             }
         }