diff --git a/README.md b/README.md
index 8724355..0596151 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,23 @@
 # InkForge
+
+## Modifying EF Model
+
+Apply Migrations for Notes-Database (`InkForge.Data`) or Identity-Database (including Workspaces, `InkForge.Api.Data`)
+
+**InkForge.Data**:<br>
+```
+dotnet ef migrations add <Name> \
+    --startup-project design/InkForge.Migrations/ \
+    --project shared/migrations/InkForge.Sqlite/ \
+    -c InkForge.Data.NoteDbContext -- \
+    --DbProvider Sqlite --connectionstrings-defaultconnection "Data Source=:memory:"
+```
+
+**InkForge.Api.Data**:<br>
+```
+dotnet ef migrations add <Name> \
+    --startup-project design/InkForge.Migrations/ \
+    --project migrations/InkForge.Api.Sqlite \
+    -c InkForge.Api.Data.ApiDbContext -- \
+    --DbProvider Sqlite --connectionstrings-defaultconnection "Data Source=:memory:"
+```
diff --git a/migrations/InkForge.Api.Sqlite/Migrations/00000000000000_Identity.Designer.cs b/migrations/InkForge.Api.Sqlite/Migrations/00000000000000_Identity.Designer.cs
new file mode 100644
index 0000000..e7e55df
--- /dev/null
+++ b/migrations/InkForge.Api.Sqlite/Migrations/00000000000000_Identity.Designer.cs
@@ -0,0 +1,268 @@
+// <auto-generated />
+using System;
+using InkForge.Api.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace InkForge.Api.Sqlite.Migrations
+{
+    [DbContext(typeof(ApiDbcontext))]
+    [Migration("00000000000000_Identity")]
+    partial class Identity
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "8.0.1");
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NormalizedName")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedName")
+                        .IsUnique()
+                        .HasDatabaseName("RoleNameIndex");
+
+                    b.ToTable("AspNetRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("RoleId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetRoleClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUser", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("AccessFailedCount")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Email")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("EmailConfirmed")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<bool>("LockoutEnabled")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTimeOffset?>("LockoutEnd")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NormalizedEmail")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NormalizedUserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PasswordHash")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("PhoneNumberConfirmed")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("SecurityStamp")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("TwoFactorEnabled")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("UserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedEmail")
+                        .HasDatabaseName("EmailIndex");
+
+                    b.HasIndex("NormalizedUserName")
+                        .IsUnique()
+                        .HasDatabaseName("UserNameIndex");
+
+                    b.ToTable("AspNetUsers", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("UserId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ProviderKey")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ProviderDisplayName")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("UserId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("LoginProvider", "ProviderKey");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserLogins", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.Property<string>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("RoleId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetUserRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.Property<string>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Value")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("UserId", "LoginProvider", "Name");
+
+                    b.ToTable("AspNetUserTokens", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/migrations/InkForge.Api.Sqlite/Migrations/00000000000000_Identity.cs b/migrations/InkForge.Api.Sqlite/Migrations/00000000000000_Identity.cs
new file mode 100644
index 0000000..832fbeb
--- /dev/null
+++ b/migrations/InkForge.Api.Sqlite/Migrations/00000000000000_Identity.cs
@@ -0,0 +1,222 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace InkForge.Api.Sqlite.Migrations
+{
+    /// <inheritdoc />
+    public partial class Identity : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "AspNetRoles",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "TEXT", nullable: false),
+                    Name = table.Column<string>(type: "TEXT", maxLength: 256, nullable: true),
+                    NormalizedName = table.Column<string>(type: "TEXT", maxLength: 256, nullable: true),
+                    ConcurrencyStamp = table.Column<string>(type: "TEXT", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetRoles", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetUsers",
+                columns: table => new
+                {
+                    Id = table.Column<string>(type: "TEXT", nullable: false),
+                    UserName = table.Column<string>(type: "TEXT", maxLength: 256, nullable: true),
+                    NormalizedUserName = table.Column<string>(type: "TEXT", maxLength: 256, nullable: true),
+                    Email = table.Column<string>(type: "TEXT", maxLength: 256, nullable: true),
+                    NormalizedEmail = table.Column<string>(type: "TEXT", maxLength: 256, nullable: true),
+                    EmailConfirmed = table.Column<bool>(type: "INTEGER", nullable: false),
+                    PasswordHash = table.Column<string>(type: "TEXT", nullable: true),
+                    SecurityStamp = table.Column<string>(type: "TEXT", nullable: true),
+                    ConcurrencyStamp = table.Column<string>(type: "TEXT", nullable: true),
+                    PhoneNumber = table.Column<string>(type: "TEXT", nullable: true),
+                    PhoneNumberConfirmed = table.Column<bool>(type: "INTEGER", nullable: false),
+                    TwoFactorEnabled = table.Column<bool>(type: "INTEGER", nullable: false),
+                    LockoutEnd = table.Column<DateTimeOffset>(type: "TEXT", nullable: true),
+                    LockoutEnabled = table.Column<bool>(type: "INTEGER", nullable: false),
+                    AccessFailedCount = table.Column<int>(type: "INTEGER", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetUsers", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetRoleClaims",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    RoleId = table.Column<string>(type: "TEXT", nullable: false),
+                    ClaimType = table.Column<string>(type: "TEXT", nullable: true),
+                    ClaimValue = table.Column<string>(type: "TEXT", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetRoleClaims", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_AspNetRoleClaims_AspNetRoles_RoleId",
+                        column: x => x.RoleId,
+                        principalTable: "AspNetRoles",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetUserClaims",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    UserId = table.Column<string>(type: "TEXT", nullable: false),
+                    ClaimType = table.Column<string>(type: "TEXT", nullable: true),
+                    ClaimValue = table.Column<string>(type: "TEXT", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetUserClaims", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_AspNetUserClaims_AspNetUsers_UserId",
+                        column: x => x.UserId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetUserLogins",
+                columns: table => new
+                {
+                    LoginProvider = table.Column<string>(type: "TEXT", nullable: false),
+                    ProviderKey = table.Column<string>(type: "TEXT", nullable: false),
+                    ProviderDisplayName = table.Column<string>(type: "TEXT", nullable: true),
+                    UserId = table.Column<string>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetUserLogins", x => new { x.LoginProvider, x.ProviderKey });
+                    table.ForeignKey(
+                        name: "FK_AspNetUserLogins_AspNetUsers_UserId",
+                        column: x => x.UserId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetUserRoles",
+                columns: table => new
+                {
+                    UserId = table.Column<string>(type: "TEXT", nullable: false),
+                    RoleId = table.Column<string>(type: "TEXT", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetUserRoles", x => new { x.UserId, x.RoleId });
+                    table.ForeignKey(
+                        name: "FK_AspNetUserRoles_AspNetRoles_RoleId",
+                        column: x => x.RoleId,
+                        principalTable: "AspNetRoles",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_AspNetUserRoles_AspNetUsers_UserId",
+                        column: x => x.UserId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "AspNetUserTokens",
+                columns: table => new
+                {
+                    UserId = table.Column<string>(type: "TEXT", nullable: false),
+                    LoginProvider = table.Column<string>(type: "TEXT", nullable: false),
+                    Name = table.Column<string>(type: "TEXT", nullable: false),
+                    Value = table.Column<string>(type: "TEXT", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_AspNetUserTokens", x => new { x.UserId, x.LoginProvider, x.Name });
+                    table.ForeignKey(
+                        name: "FK_AspNetUserTokens_AspNetUsers_UserId",
+                        column: x => x.UserId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AspNetRoleClaims_RoleId",
+                table: "AspNetRoleClaims",
+                column: "RoleId");
+
+            migrationBuilder.CreateIndex(
+                name: "RoleNameIndex",
+                table: "AspNetRoles",
+                column: "NormalizedName",
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AspNetUserClaims_UserId",
+                table: "AspNetUserClaims",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AspNetUserLogins_UserId",
+                table: "AspNetUserLogins",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_AspNetUserRoles_RoleId",
+                table: "AspNetUserRoles",
+                column: "RoleId");
+
+            migrationBuilder.CreateIndex(
+                name: "EmailIndex",
+                table: "AspNetUsers",
+                column: "NormalizedEmail");
+
+            migrationBuilder.CreateIndex(
+                name: "UserNameIndex",
+                table: "AspNetUsers",
+                column: "NormalizedUserName",
+                unique: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "AspNetRoleClaims");
+
+            migrationBuilder.DropTable(
+                name: "AspNetUserClaims");
+
+            migrationBuilder.DropTable(
+                name: "AspNetUserLogins");
+
+            migrationBuilder.DropTable(
+                name: "AspNetUserRoles");
+
+            migrationBuilder.DropTable(
+                name: "AspNetUserTokens");
+
+            migrationBuilder.DropTable(
+                name: "AspNetRoles");
+
+            migrationBuilder.DropTable(
+                name: "AspNetUsers");
+        }
+    }
+}
diff --git a/migrations/InkForge.Api.Sqlite/Migrations/20240207000000_Workspaces.Designer.cs b/migrations/InkForge.Api.Sqlite/Migrations/20240207000000_Workspaces.Designer.cs
new file mode 100644
index 0000000..058c7ee
--- /dev/null
+++ b/migrations/InkForge.Api.Sqlite/Migrations/20240207000000_Workspaces.Designer.cs
@@ -0,0 +1,388 @@
+// <auto-generated />
+using System;
+using InkForge.Api.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace InkForge.Api.Sqlite.Migrations
+{
+    [DbContext(typeof(ApiDbcontext))]
+    [Migration("20240207000000_Workspaces")]
+    partial class Workspaces
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "8.0.1");
+
+            modelBuilder.Entity("InkForge.Api.Data.Infrastructure.WorkspaceEntity", b =>
+                {
+                    b.Property<int?>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Workspaces");
+                });
+
+            modelBuilder.Entity("InkForge.Api.Data.Infrastructure.WorkspaceVersionEntity", b =>
+                {
+                    b.Property<int?>("Version")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Id")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Version");
+
+                    b.HasIndex("Id", "Version")
+                        .IsUnique();
+
+                    b.ToTable("WorkspaceVersions");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NormalizedName")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedName")
+                        .IsUnique()
+                        .HasDatabaseName("RoleNameIndex");
+
+                    b.ToTable("AspNetRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("RoleId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetRoleClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUser", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("AccessFailedCount")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Email")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("EmailConfirmed")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<bool>("LockoutEnabled")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTimeOffset?>("LockoutEnd")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NormalizedEmail")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NormalizedUserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PasswordHash")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("PhoneNumberConfirmed")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("SecurityStamp")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("TwoFactorEnabled")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("UserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedEmail")
+                        .HasDatabaseName("EmailIndex");
+
+                    b.HasIndex("NormalizedUserName")
+                        .IsUnique()
+                        .HasDatabaseName("UserNameIndex");
+
+                    b.ToTable("AspNetUsers", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("UserId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ProviderKey")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ProviderDisplayName")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("UserId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("LoginProvider", "ProviderKey");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserLogins", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.Property<string>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("RoleId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetUserRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.Property<string>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Value")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("UserId", "LoginProvider", "Name");
+
+                    b.ToTable("AspNetUserTokens", (string)null);
+                });
+
+            modelBuilder.Entity("InkForge.Api.Data.Infrastructure.WorkspaceEntity", b =>
+                {
+                    b.OwnsOne("InkForge.Api.Data.Domain.Workspace", "Value", b1 =>
+                        {
+                            b1.Property<int>("WorkspaceEntityId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<DateTimeOffset>("Created")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<DateTimeOffset?>("Deleted")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("Name")
+                                .IsRequired()
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("OwnerId")
+                                .IsRequired()
+                                .HasColumnType("TEXT");
+
+                            b1.Property<DateTimeOffset>("Updated")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("WorkspaceEntityId");
+
+                            b1.HasIndex("OwnerId");
+
+                            b1.ToTable("Workspaces");
+
+                            b1.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", "Owner")
+                                .WithMany()
+                                .HasForeignKey("OwnerId")
+                                .OnDelete(DeleteBehavior.Cascade)
+                                .IsRequired();
+
+                            b1.WithOwner()
+                                .HasForeignKey("WorkspaceEntityId");
+
+                            b1.Navigation("Owner");
+                        });
+
+                    b.Navigation("Value")
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("InkForge.Api.Data.Infrastructure.WorkspaceVersionEntity", b =>
+                {
+                    b.OwnsOne("InkForge.Api.Data.Domain.Workspace", "Value", b1 =>
+                        {
+                            b1.Property<int>("WorkspaceVersionEntityVersion")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<DateTimeOffset>("Created")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<DateTimeOffset?>("Deleted")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("Name")
+                                .IsRequired()
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("OwnerId")
+                                .IsRequired()
+                                .HasColumnType("TEXT");
+
+                            b1.Property<DateTimeOffset>("Updated")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("WorkspaceVersionEntityVersion");
+
+                            b1.HasIndex("OwnerId");
+
+                            b1.ToTable("WorkspaceVersions");
+
+                            b1.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", "Owner")
+                                .WithMany()
+                                .HasForeignKey("OwnerId")
+                                .OnDelete(DeleteBehavior.Cascade)
+                                .IsRequired();
+
+                            b1.WithOwner()
+                                .HasForeignKey("WorkspaceVersionEntityVersion");
+
+                            b1.Navigation("Owner");
+                        });
+
+                    b.Navigation("Value")
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/migrations/InkForge.Api.Sqlite/Migrations/20240207000000_Workspaces.cs b/migrations/InkForge.Api.Sqlite/Migrations/20240207000000_Workspaces.cs
new file mode 100644
index 0000000..a036546
--- /dev/null
+++ b/migrations/InkForge.Api.Sqlite/Migrations/20240207000000_Workspaces.cs
@@ -0,0 +1,88 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace InkForge.Api.Sqlite.Migrations
+{
+    /// <inheritdoc />
+    public partial class Workspaces : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Workspaces",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    Value_Name = table.Column<string>(type: "TEXT", nullable: false),
+                    Value_Created = table.Column<DateTimeOffset>(type: "TEXT", nullable: false),
+                    Value_OwnerId = table.Column<string>(type: "TEXT", nullable: false),
+                    Value_Updated = table.Column<DateTimeOffset>(type: "TEXT", nullable: false),
+                    Value_Deleted = table.Column<DateTimeOffset>(type: "TEXT", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Workspaces", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Workspaces_AspNetUsers_Value_OwnerId",
+                        column: x => x.Value_OwnerId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "WorkspaceVersions",
+                columns: table => new
+                {
+                    Version = table.Column<int>(type: "INTEGER", nullable: false)
+                        .Annotation("Sqlite:Autoincrement", true),
+                    Value_Name = table.Column<string>(type: "TEXT", nullable: false),
+                    Value_Created = table.Column<DateTimeOffset>(type: "TEXT", nullable: false),
+                    Value_OwnerId = table.Column<string>(type: "TEXT", nullable: false),
+                    Value_Updated = table.Column<DateTimeOffset>(type: "TEXT", nullable: false),
+                    Value_Deleted = table.Column<DateTimeOffset>(type: "TEXT", nullable: true),
+                    Id = table.Column<int>(type: "INTEGER", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_WorkspaceVersions", x => x.Version);
+                    table.ForeignKey(
+                        name: "FK_WorkspaceVersions_AspNetUsers_Value_OwnerId",
+                        column: x => x.Value_OwnerId,
+                        principalTable: "AspNetUsers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Workspaces_Value_OwnerId",
+                table: "Workspaces",
+                column: "Value_OwnerId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_WorkspaceVersions_Id_Version",
+                table: "WorkspaceVersions",
+                columns: new[] { "Id", "Version" },
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_WorkspaceVersions_Value_OwnerId",
+                table: "WorkspaceVersions",
+                column: "Value_OwnerId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Workspaces");
+
+            migrationBuilder.DropTable(
+                name: "WorkspaceVersions");
+        }
+    }
+}
diff --git a/migrations/InkForge.Api.Sqlite/Migrations/ApiDbcontextModelSnapshot.cs b/migrations/InkForge.Api.Sqlite/Migrations/ApiDbcontextModelSnapshot.cs
new file mode 100644
index 0000000..db34aba
--- /dev/null
+++ b/migrations/InkForge.Api.Sqlite/Migrations/ApiDbcontextModelSnapshot.cs
@@ -0,0 +1,385 @@
+// <auto-generated />
+using System;
+using InkForge.Api.Data;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace InkForge.Api.Sqlite.Migrations
+{
+    [DbContext(typeof(ApiDbcontext))]
+    partial class ApiDbcontextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder.HasAnnotation("ProductVersion", "8.0.1");
+
+            modelBuilder.Entity("InkForge.Api.Data.Infrastructure.WorkspaceEntity", b =>
+                {
+                    b.Property<int?>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Workspaces");
+                });
+
+            modelBuilder.Entity("InkForge.Api.Data.Infrastructure.WorkspaceVersionEntity", b =>
+                {
+                    b.Property<int?>("Version")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<int>("Id")
+                        .HasColumnType("INTEGER");
+
+                    b.HasKey("Version");
+
+                    b.HasIndex("Id", "Version")
+                        .IsUnique();
+
+                    b.ToTable("WorkspaceVersions");
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRole", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NormalizedName")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedName")
+                        .IsUnique()
+                        .HasDatabaseName("RoleNameIndex");
+
+                    b.ToTable("AspNetRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("RoleId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetRoleClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUser", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasColumnType("TEXT");
+
+                    b.Property<int>("AccessFailedCount")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ConcurrencyStamp")
+                        .IsConcurrencyToken()
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Email")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("EmailConfirmed")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<bool>("LockoutEnabled")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<DateTimeOffset?>("LockoutEnd")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NormalizedEmail")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("NormalizedUserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PasswordHash")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("PhoneNumber")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("PhoneNumberConfirmed")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("SecurityStamp")
+                        .HasColumnType("TEXT");
+
+                    b.Property<bool>("TwoFactorEnabled")
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("UserName")
+                        .HasMaxLength(256)
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("NormalizedEmail")
+                        .HasDatabaseName("EmailIndex");
+
+                    b.HasIndex("NormalizedUserName")
+                        .IsUnique()
+                        .HasDatabaseName("UserNameIndex");
+
+                    b.ToTable("AspNetUsers", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("INTEGER");
+
+                    b.Property<string>("ClaimType")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ClaimValue")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("UserId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserClaims", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ProviderKey")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("ProviderDisplayName")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("UserId")
+                        .IsRequired()
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("LoginProvider", "ProviderKey");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("AspNetUserLogins", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.Property<string>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("RoleId")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("UserId", "RoleId");
+
+                    b.HasIndex("RoleId");
+
+                    b.ToTable("AspNetUserRoles", (string)null);
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.Property<string>("UserId")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("LoginProvider")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("TEXT");
+
+                    b.Property<string>("Value")
+                        .HasColumnType("TEXT");
+
+                    b.HasKey("UserId", "LoginProvider", "Name");
+
+                    b.ToTable("AspNetUserTokens", (string)null);
+                });
+
+            modelBuilder.Entity("InkForge.Api.Data.Infrastructure.WorkspaceEntity", b =>
+                {
+                    b.OwnsOne("InkForge.Api.Data.Domain.Workspace", "Value", b1 =>
+                        {
+                            b1.Property<int>("WorkspaceEntityId")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<DateTimeOffset>("Created")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<DateTimeOffset?>("Deleted")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("Name")
+                                .IsRequired()
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("OwnerId")
+                                .IsRequired()
+                                .HasColumnType("TEXT");
+
+                            b1.Property<DateTimeOffset>("Updated")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("WorkspaceEntityId");
+
+                            b1.HasIndex("OwnerId");
+
+                            b1.ToTable("Workspaces");
+
+                            b1.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", "Owner")
+                                .WithMany()
+                                .HasForeignKey("OwnerId")
+                                .OnDelete(DeleteBehavior.Cascade)
+                                .IsRequired();
+
+                            b1.WithOwner()
+                                .HasForeignKey("WorkspaceEntityId");
+
+                            b1.Navigation("Owner");
+                        });
+
+                    b.Navigation("Value")
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("InkForge.Api.Data.Infrastructure.WorkspaceVersionEntity", b =>
+                {
+                    b.OwnsOne("InkForge.Api.Data.Domain.Workspace", "Value", b1 =>
+                        {
+                            b1.Property<int>("WorkspaceVersionEntityVersion")
+                                .HasColumnType("INTEGER");
+
+                            b1.Property<DateTimeOffset>("Created")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<DateTimeOffset?>("Deleted")
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("Name")
+                                .IsRequired()
+                                .HasColumnType("TEXT");
+
+                            b1.Property<string>("OwnerId")
+                                .IsRequired()
+                                .HasColumnType("TEXT");
+
+                            b1.Property<DateTimeOffset>("Updated")
+                                .HasColumnType("TEXT");
+
+                            b1.HasKey("WorkspaceVersionEntityVersion");
+
+                            b1.HasIndex("OwnerId");
+
+                            b1.ToTable("WorkspaceVersions");
+
+                            b1.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", "Owner")
+                                .WithMany()
+                                .HasForeignKey("OwnerId")
+                                .OnDelete(DeleteBehavior.Cascade)
+                                .IsRequired();
+
+                            b1.WithOwner()
+                                .HasForeignKey("WorkspaceVersionEntityVersion");
+
+                            b1.Navigation("Owner");
+                        });
+
+                    b.Navigation("Value")
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityRoleClaim<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserClaim<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserLogin<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserRole<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityRole", null)
+                        .WithMany()
+                        .HasForeignKey("RoleId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("Microsoft.AspNetCore.Identity.IdentityUserToken<string>", b =>
+                {
+                    b.HasOne("Microsoft.AspNetCore.Identity.IdentityUser", null)
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/refs/design/Sync.md b/refs/design/Sync.md
new file mode 100644
index 0000000..6f76b0a
--- /dev/null
+++ b/refs/design/Sync.md
@@ -0,0 +1,4 @@
+# Sync
+
+## Realtime-Collaboration
+**Consideration**: Enable realtime-collaboration.
diff --git a/refs/design/Workspaces.md b/refs/design/Workspaces.md
index 2588d49..b3126a5 100644
--- a/refs/design/Workspaces.md
+++ b/refs/design/Workspaces.md
@@ -3,3 +3,5 @@
 On Web/Api/Sync Users can create Workspaces.
 
 Workspaces separate different "notebooks".
+
+Workspaces are shareable with other Users, enabling collaboration.