diff --git a/pgLabII/App.axaml.cs b/pgLabII/App.axaml.cs
index 799f898..4403271 100644
--- a/pgLabII/App.axaml.cs
+++ b/pgLabII/App.axaml.cs
@@ -49,6 +49,6 @@ public partial class App : Application
         using var scope = services.CreateScope();
 
         var db = services.GetRequiredService<LocalDb>();
-        //db.Database.Migrate();
+        db.Database.Migrate();
     }
 }
diff --git a/pgLabII/EditHistoryManager/EditHistoryManager.cs b/pgLabII/EditHistoryManager/EditHistoryManager.cs
index 439bfed..45ba53d 100644
--- a/pgLabII/EditHistoryManager/EditHistoryManager.cs
+++ b/pgLabII/EditHistoryManager/EditHistoryManager.cs
@@ -84,9 +84,9 @@ public class EditHistoryManager : IEditHistoryManager
 
     public void SaveToDatabase()
     {
-        // _db.EditHistory.AddRange(_pendingEdits);
-        // _db.SaveChanges();
-        // _pendingEdits.Clear();
+        _db.EditHistory.AddRange(_pendingEdits);
+        _db.SaveChanges();
+        _pendingEdits.Clear();
     }
 
     public IReadOnlyList<EditHistoryEntry> GetHistory() => _pendingEdits.AsReadOnly();
diff --git a/pgLabII/Infra/LocalDb.cs b/pgLabII/Infra/LocalDb.cs
index dacee75..2d1343b 100644
--- a/pgLabII/Infra/LocalDb.cs
+++ b/pgLabII/Infra/LocalDb.cs
@@ -1,4 +1,5 @@
 using System;
+using Avalonia.Controls.Shapes;
 using Avalonia.Media;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.EntityFrameworkCore.Metadata.Builders;
@@ -16,8 +17,9 @@ public class LocalDb : DbContext
 
     public LocalDb()
     {
-        var folder = Environment.SpecialFolder.LocalApplicationData;
-        var path = Environment.GetFolderPath(folder);
+        var path = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
+        path = System.IO.Path.Join(path, "pgLabII");
+        System.IO.Directory.CreateDirectory(path);
         DbPath = System.IO.Path.Join(path, "local.db");
     }
 
diff --git a/pgLabII/Migrations/20251025162617_First.Designer.cs b/pgLabII/Migrations/20251025162617_First.Designer.cs
new file mode 100644
index 0000000..6020602
--- /dev/null
+++ b/pgLabII/Migrations/20251025162617_First.Designer.cs
@@ -0,0 +1,139 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using pgLabII.Infra;
+
+#nullable disable
+
+namespace pgLabII.Migrations
+{
+    [DbContext(typeof(LocalDb))]
+    [Migration("20251025162617_First")]
+    partial class First
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "9.0.8");
+
+            modelBuilder.Entity("pgLabII.Model.Document", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("BaseCopyFilename")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("Created")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("LastModified")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("OriginalFilename")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Documents");
+                });
+
+            modelBuilder.Entity("pgLabII.Model.EditHistoryEntry", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("DocumentId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("InsertedText")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Offset")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("RemovedText")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("Timestamp")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DocumentId", "Timestamp");
+
+                    b.ToTable("EditHistory");
+                });
+
+            modelBuilder.Entity("pgLabII.Model.ServerConfigurationEntity", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("ColorArgb")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<bool>("ColorEnabled")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Host")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("InitialDatabase")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<ushort>("Port")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("SslMode")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("UserName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("ServerConfigurations");
+                });
+
+            modelBuilder.Entity("pgLabII.Model.EditHistoryEntry", b =>
+                {
+                    b.HasOne("pgLabII.Model.Document", "Document")
+                        .WithMany("EditHistory")
+                        .HasForeignKey("DocumentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Document");
+                });
+
+            modelBuilder.Entity("pgLabII.Model.Document", b =>
+                {
+                    b.Navigation("EditHistory");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/pgLabII/Migrations/20251025162617_First.cs b/pgLabII/Migrations/20251025162617_First.cs
new file mode 100644
index 0000000..8b042a4
--- /dev/null
+++ b/pgLabII/Migrations/20251025162617_First.cs
@@ -0,0 +1,92 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace pgLabII.Migrations
+{
+    /// <inheritdoc />
+    public partial class First : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Documents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    OriginalFilename = table.Column<string>(type: "TEXT", nullable: false),
+                    BaseCopyFilename = table.Column<string>(type: "TEXT", nullable: false),
+                    Created = table.Column<DateTime>(type: "TEXT", nullable: false),
+                    LastModified = table.Column<DateTime>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Documents", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ServerConfigurations",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "TEXT", nullable: false),
+                    Name = table.Column<string>(type: "TEXT", nullable: false),
+                    Host = table.Column<string>(type: "TEXT", nullable: false),
+                    Port = table.Column<ushort>(type: "INTEGER", nullable: false),
+                    InitialDatabase = table.Column<string>(type: "TEXT", nullable: false),
+                    SslMode = table.Column<int>(type: "INTEGER", nullable: false),
+                    ColorEnabled = table.Column<bool>(type: "INTEGER", nullable: false),
+                    ColorArgb = table.Column<int>(type: "INTEGER", nullable: false),
+                    UserName = table.Column<string>(type: "TEXT", nullable: false),
+                    Password = table.Column<string>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ServerConfigurations", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "EditHistory",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    DocumentId = table.Column<int>(type: "INTEGER", nullable: false),
+                    Timestamp = table.Column<DateTime>(type: "TEXT", nullable: false),
+                    Offset = table.Column<int>(type: "INTEGER", nullable: false),
+                    InsertedText = table.Column<string>(type: "TEXT", nullable: false),
+                    RemovedText = table.Column<string>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_EditHistory", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_EditHistory_Documents_DocumentId",
+                        column: x => x.DocumentId,
+                        principalTable: "Documents",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_EditHistory_DocumentId_Timestamp",
+                table: "EditHistory",
+                columns: new[] { "DocumentId", "Timestamp" });
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "EditHistory");
+
+            migrationBuilder.DropTable(
+                name: "ServerConfigurations");
+
+            migrationBuilder.DropTable(
+                name: "Documents");
+        }
+    }
+}
diff --git a/pgLabII/Migrations/LocalDbModelSnapshot.cs b/pgLabII/Migrations/LocalDbModelSnapshot.cs
new file mode 100644
index 0000000..c860147
--- /dev/null
+++ b/pgLabII/Migrations/LocalDbModelSnapshot.cs
@@ -0,0 +1,136 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using pgLabII.Infra;
+
+#nullable disable
+
+namespace pgLabII.Migrations
+{
+    [DbContext(typeof(LocalDb))]
+    partial class LocalDbModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "9.0.8");
+
+            modelBuilder.Entity("pgLabII.Model.Document", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("BaseCopyFilename")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("Created")
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("LastModified")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("OriginalFilename")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Documents");
+                });
+
+            modelBuilder.Entity("pgLabII.Model.EditHistoryEntry", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("DocumentId")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("InsertedText")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("Offset")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("RemovedText")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<DateTime>("Timestamp")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DocumentId", "Timestamp");
+
+                    b.ToTable("EditHistory");
+                });
+
+            modelBuilder.Entity("pgLabII.Model.ServerConfigurationEntity", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("ColorArgb")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<bool>("ColorEnabled")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("Host")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("InitialDatabase")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.Property<ushort>("Port")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("SslMode")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("UserName")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("ServerConfigurations");
+                });
+
+            modelBuilder.Entity("pgLabII.Model.EditHistoryEntry", b =>
+                {
+                    b.HasOne("pgLabII.Model.Document", "Document")
+                        .WithMany("EditHistory")
+                        .HasForeignKey("DocumentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Document");
+                });
+
+            modelBuilder.Entity("pgLabII.Model.Document", b =>
+                {
+                    b.Navigation("EditHistory");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}