Restructured the project structure back to the way it was, there's no reasonable way to split the modules

src/NadekoBot/Db/Models/xp/UserXpStats.cs

@@ -0,0 +1,13 @@
+#nullable disable
+namespace Nadeko.Bot.Db.Models;
+
+public class UserXpStats : DbEntity
+{
+    public ulong UserId { get; set; }
+    public ulong GuildId { get; set; }
+    public long Xp { get; set; }
+    public long AwardedXp { get; set; }
+    public XpNotificationLocation NotifyOnLevelUp { get; set; }
+}
+
+public enum XpNotificationLocation { None, Dm, Channel }

src/NadekoBot/Db/Models/xp/XpSettings.cs

@@ -0,0 +1,62 @@
+#nullable disable
+namespace Nadeko.Bot.Db.Models;
+
+public class XpSettings : DbEntity
+{
+    public int GuildConfigId { get; set; }
+    public GuildConfig GuildConfig { get; set; }
+
+    public HashSet<XpRoleReward> RoleRewards { get; set; } = new();
+    public HashSet<XpCurrencyReward> CurrencyRewards { get; set; } = new();
+    public HashSet<ExcludedItem> ExclusionList { get; set; } = new();
+    public bool ServerExcluded { get; set; }
+}
+
+public enum ExcludedItemType { Channel, Role }
+
+public class XpRoleReward : DbEntity
+{
+    public int XpSettingsId { get; set; }
+    public XpSettings XpSettings { get; set; }
+
+    public int Level { get; set; }
+    public ulong RoleId { get; set; }
+
+    /// <summary>
+    ///     Whether the role should be removed (true) or added (false)
+    /// </summary>
+    public bool Remove { get; set; }
+
+    public override int GetHashCode()
+        => Level.GetHashCode() ^ XpSettingsId.GetHashCode();
+
+    public override bool Equals(object obj)
+        => obj is XpRoleReward xrr && xrr.Level == Level && xrr.XpSettingsId == XpSettingsId;
+}
+
+public class XpCurrencyReward : DbEntity
+{
+    public int XpSettingsId { get; set; }
+    public XpSettings XpSettings { get; set; }
+
+    public int Level { get; set; }
+    public int Amount { get; set; }
+
+    public override int GetHashCode()
+        => Level.GetHashCode() ^ XpSettingsId.GetHashCode();
+
+    public override bool Equals(object obj)
+        => obj is XpCurrencyReward xrr && xrr.Level == Level && xrr.XpSettingsId == XpSettingsId;
+}
+
+public class ExcludedItem : DbEntity
+{
+    public ulong ItemId { get; set; }
+    public ExcludedItemType ItemType { get; set; }
+
+    public override int GetHashCode()
+        => ItemId.GetHashCode() ^ ItemType.GetHashCode();
+
+    public override bool Equals(object obj)
+        => obj is ExcludedItem ei && ei.ItemId == ItemId && ei.ItemType == ItemType;
+}