diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0be2fa736..be04a8072 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -165,17 +165,3 @@ docker-build:
    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH || $CI_COMMIT_TAG
      exists:
        - Dockerfile
-
-qodana:
-  stage: test
-  allow_failure: true
-  image:
-    name: jetbrains/qodana-dotnet:latest
-    entrypoint: [""]
-  variables:
-    QODANA_TOKEN: $qodana_token
-  script:
-    - qodana
-  artifacts:
-    paths:
-      - qodana
\ No newline at end of file
diff --git a/src/NadekoBot/Bot.cs b/src/NadekoBot/Bot.cs
index 96312488c..38652e8f4 100644
--- a/src/NadekoBot/Bot.cs
+++ b/src/NadekoBot/Bot.cs
@@ -114,7 +114,7 @@ public sealed class Bot : IBot
         // svcs.Components.Remove<IPlanner, Planner>();
         // svcs.Components.Add<IPlanner, RemovablePlanner>();
 
-        svcs.AddSingleton<IBotCredentials, IBotCredentials>(_ => _credsProvider.GetCreds());
+        svcs.AddSingleton<IBotCredentials>(_ => _credsProvider.GetCreds());
         svcs.AddSingleton<DbService, DbService>(_db);
         svcs.AddSingleton<IBotCredsProvider>(_credsProvider);
         svcs.AddSingleton<DiscordSocketClient>(Client);
diff --git a/src/NadekoBot/Modules/Administration/Self/SelfCommands.cs b/src/NadekoBot/Modules/Administration/Self/SelfCommands.cs
index 0ee308398..d271d9b66 100644
--- a/src/NadekoBot/Modules/Administration/Self/SelfCommands.cs
+++ b/src/NadekoBot/Modules/Administration/Self/SelfCommands.cs
@@ -546,7 +546,7 @@ public partial class Administration
             text = await repSvc.ReplaceAsync(text, repCtx);
             await Response().Channel(ch).Text(text).SendAsync();
          
-            await ctx.OkAsync();;
+            await ctx.OkAsync();
         }
 
         [Cmd]
diff --git a/src/NadekoBot/Modules/Gambling/PlantPick/PlantPickService.cs b/src/NadekoBot/Modules/Gambling/PlantPick/PlantPickService.cs
index e0c580f62..28462586b 100644
--- a/src/NadekoBot/Modules/Gambling/PlantPick/PlantPickService.cs
+++ b/src/NadekoBot/Modules/Gambling/PlantPick/PlantPickService.cs
@@ -31,7 +31,6 @@ public class PlantPickService : INService, IExecNoCommand
 
     public PlantPickService(
         DbService db,
-        CommandHandler cmd,
         IBotStrings strings,
         IImageCache images,
         FontProvider fonts,
@@ -107,7 +106,6 @@ public class PlantPickService : INService, IExecNoCommand
     ///     Get a random currency image stream, with an optional password sticked onto it.
     /// </summary>
     /// <param name="pass">Optional password to add to top left corner.</param>
-    /// <param name="extension">Extension of the file, defaults to png</param>
     /// <returns>Stream of the currency image</returns>
     public async Task<(Stream, string)> GetRandomCurrencyImageAsync(string pass)
     {
diff --git a/src/NadekoBot/Modules/Gambling/Waifus/WaifuClaimCommands.cs b/src/NadekoBot/Modules/Gambling/Waifus/WaifuClaimCommands.cs
index f5597d400..42005fe74 100644
--- a/src/NadekoBot/Modules/Gambling/Waifus/WaifuClaimCommands.cs
+++ b/src/NadekoBot/Modules/Gambling/Waifus/WaifuClaimCommands.cs
@@ -3,6 +3,7 @@ using NadekoBot.Modules.Gambling.Common;
 using NadekoBot.Modules.Gambling.Common.Waifu;
 using NadekoBot.Modules.Gambling.Services;
 using NadekoBot.Db.Models;
+using System.Globalization;
 
 namespace NadekoBot.Modules.Gambling;
 
@@ -152,12 +153,12 @@ public partial class Gambling
                 await Response().Confirm(strs.waifu_divorced_notlike(N(amount))).SendAsync();
             else if (result == DivorceResult.NotYourWife)
                 await Response().Error(strs.waifu_not_yours).SendAsync();
-            else
+            else if (remaining is { } rem)
             {
                 await Response()
                       .Error(strs.waifu_recent_divorce(
-                          Format.Bold(((int)remaining?.TotalHours).ToString()),
-                          Format.Bold(remaining?.Minutes.ToString())))
+                          Format.Bold(((int)rem.TotalHours).ToString()),
+                          Format.Bold(rem.Minutes.ToString())))
                       .SendAsync();
             }
         }
@@ -237,7 +238,7 @@ public partial class Gambling
         private string GetLbString(WaifuLbResult w)
         {
             var claimer = "no one";
-            var status = string.Empty;
+            string status;
 
             var waifuUsername = w.Username.TrimTo(20);
             var claimerUsername = w.Claimer?.TrimTo(20);
@@ -376,14 +377,15 @@ public partial class Gambling
             if (sucess)
             {
                 await Response()
-                      .Confirm(strs.waifu_gift(Format.Bold($"{GetCountString(items)}{items.Item} {items.Item.ItemEmoji}"),
+                      .Confirm(strs.waifu_gift(
+                          Format.Bold($"{GetCountString(items)}{items.Item} {items.Item.ItemEmoji}"),
                           Format.Bold(waifu.ToString())))
                       .SendAsync();
             }
             else
                 await Response().Error(strs.not_enough(CurrencySign)).SendAsync();
         }
-        
+
         private static string GetCountString(MultipleWaifuItems items)
             => items.Count > 1
                 ? $"{items.Count}x "
diff --git a/src/NadekoBot/Modules/Games/Trivia/Games.cs b/src/NadekoBot/Modules/Games/Trivia/TriviaCommands.cs
similarity index 98%
rename from src/NadekoBot/Modules/Games/Trivia/Games.cs
rename to src/NadekoBot/Modules/Games/Trivia/TriviaCommands.cs
index 92714a2ac..aca08e2b2 100644
--- a/src/NadekoBot/Modules/Games/Trivia/Games.cs
+++ b/src/NadekoBot/Modules/Games/Trivia/TriviaCommands.cs
@@ -107,9 +107,9 @@ public partial class Games
             return sb.ToString();
         }
 
-        private EmbedBuilder? questionEmbed = null;
-        private IUserMessage? questionMessage = null;
-        private bool showHowToQuit = false;
+        private EmbedBuilder? questionEmbed;
+        private IUserMessage? questionMessage;
+        private bool showHowToQuit;
 
         private void RegisterEvents(TriviaGame trivia)
         {
diff --git a/src/NadekoBot/Modules/Games/Trivia/TriviaGame.cs b/src/NadekoBot/Modules/Games/Trivia/TriviaGame.cs
index 45d603a2a..e1a29992f 100644
--- a/src/NadekoBot/Modules/Games/Trivia/TriviaGame.cs
+++ b/src/NadekoBot/Modules/Games/Trivia/TriviaGame.cs
@@ -11,12 +11,19 @@ public sealed class TriviaGame
     private readonly IQuestionPool _questionPool;
 
     #region Events
+
     public event Func<TriviaGame, TriviaQuestion, Task> OnQuestion = static delegate { return Task.CompletedTask; };
     public event Func<TriviaGame, TriviaQuestion, Task> OnHint = static delegate { return Task.CompletedTask; };
     public event Func<TriviaGame, Task> OnStats = static delegate { return Task.CompletedTask; };
-    public event Func<TriviaGame, TriviaUser, TriviaQuestion, bool, Task> OnGuess = static delegate { return Task.CompletedTask; };
+
+    public event Func<TriviaGame, TriviaUser, TriviaQuestion, bool, Task> OnGuess = static delegate
+    {
+        return Task.CompletedTask;
+    };
+
     public event Func<TriviaGame, TriviaQuestion, Task> OnTimeout = static delegate { return Task.CompletedTask; };
     public event Func<TriviaGame, Task> OnEnded = static delegate { return Task.CompletedTask; };
+
     #endregion
 
     private bool _isStopped;
@@ -24,7 +31,7 @@ public sealed class TriviaGame
     public TriviaQuestion? CurrentQuestion { get; set; }
 
 
-    private readonly ConcurrentDictionary<ulong, int> _users = new ();
+    private readonly ConcurrentDictionary<ulong, int> _users = new();
 
     private readonly Channel<(TriviaUser User, string Input)> _inputs
         = Channel.CreateUnbounded<(TriviaUser, string)>(new UnboundedChannelOptions
@@ -41,8 +48,8 @@ public sealed class TriviaGame
         _questionPool = _opts.IsPokemon
             ? new PokemonQuestionPool(cache)
             : new DefaultQuestionPool(cache);
-
     }
+
     public async Task RunAsync()
     {
         await GameLoop();
@@ -50,7 +57,8 @@ public sealed class TriviaGame
 
     private async Task GameLoop()
     {
-        Task TimeOutFactory() => Task.Delay(_opts.QuestionTimer * 1000 / 2);
+        Task TimeOutFactory()
+            => Task.Delay(_opts.QuestionTimer * 1000 / 2);
 
         var errorCount = 0;
         var inactivity = 0;
@@ -91,7 +99,8 @@ public sealed class TriviaGame
                 {
                     // clear out all of the past guesses
                     while (_inputs.Reader.TryRead(out _))
-                        ;
+                    {
+                    }
 
                     await OnQuestion(this, question);
                 }
@@ -121,7 +130,7 @@ public sealed class TriviaGame
                     if (task == halfGuessTimerTask)
                     {
                         readCancel.Cancel();
-                        
+
                         // if hint is already sent, means time expired
                         // break (end the round)
                         if (hintSent)
@@ -213,7 +222,7 @@ public sealed class TriviaGame
 
     public async Task TriggerQuestionAsync()
     {
-        if(CurrentQuestion is TriviaQuestion q)
+        if (CurrentQuestion is TriviaQuestion q)
             await OnQuestion(this, q);
     }
 }
\ No newline at end of file
diff --git a/src/NadekoBot/Modules/Music/_common/Resolvers/RadioResolveStrategy.cs b/src/NadekoBot/Modules/Music/_common/Resolvers/RadioResolveStrategy.cs
index dc783e56b..32696f5d9 100644
--- a/src/NadekoBot/Modules/Music/_common/Resolvers/RadioResolveStrategy.cs
+++ b/src/NadekoBot/Modules/Music/_common/Resolvers/RadioResolveStrategy.cs
@@ -61,8 +61,8 @@ public class RadioResolver : IRadioResolver
             try
             {
                 var m = _m3URegex.Match(file);
-                var res = m.Groups["url"]?.ToString();
-                return res?.Trim();
+                var res = m.Groups["url"].ToString();
+                return res.Trim();
             }
             catch
             {
@@ -76,8 +76,8 @@ public class RadioResolver : IRadioResolver
             try
             {
                 var m = _asxRegex.Match(file);
-                var res = m.Groups["url"]?.ToString();
-                return res?.Trim();
+                var res = m.Groups["url"].ToString();
+                return res.Trim();
             }
             catch
             {
@@ -91,8 +91,8 @@ public class RadioResolver : IRadioResolver
             try
             {
                 var m = _xspfRegex.Match(file);
-                var res = m.Groups["url"]?.ToString();
-                return res?.Trim();
+                var res = m.Groups["url"].ToString();
+                return res.Trim();
             }
             catch
             {
diff --git a/src/NadekoBot/Modules/Patronage/PatronageService.cs b/src/NadekoBot/Modules/Patronage/PatronageService.cs
index d676bd9f7..703294d83 100644
--- a/src/NadekoBot/Modules/Patronage/PatronageService.cs
+++ b/src/NadekoBot/Modules/Patronage/PatronageService.cs
@@ -19,16 +19,11 @@ public sealed class PatronageService
     public int Priority
         => int.MinValue;
 
-    private static readonly PatronTier[] _tiers = Enum.GetValues<PatronTier>();
-
     private readonly PatronageConfig _pConf;
     private readonly DbService _db;
     private readonly DiscordSocketClient _client;
     private readonly ISubscriptionHandler _subsHandler;
 
-    private static readonly TypedKey<long> _quotaKey
-        = new($"quota:last_hourly_reset");
-
     private readonly IBotCache _cache;
     private readonly IBotCredsProvider _creds;
     private readonly IMessageSenderService _sender;
@@ -133,19 +128,19 @@ public sealed class PatronageService
                         // user is charged again for this month
                         // if his sub would end in teh future, extend it by one month.
                         // if it's not, just add 1 month to the last charge date
-                        var count = await ctx.GetTable<PatronUser>()
-                                             .Where(x => x.UniquePlatformUserId
-                                                         == subscriber.UniquePlatformUserId)
-                                             .UpdateAsync(old => new()
-                                             {
-                                                 UserId = subscriber.UserId,
-                                                 AmountCents = subscriber.Cents,
-                                                 LastCharge = lastChargeUtc,
-                                                 ValidThru = old.ValidThru >= todayDate
-                                                     // ? Sql.DateAdd(Sql.DateParts.Month, 1, old.ValidThru).Value
-                                                     ? old.ValidThru.AddMonths(1)
-                                                     : dateInOneMonth,
-                                             });
+                        await ctx.GetTable<PatronUser>()
+                                 .Where(x => x.UniquePlatformUserId
+                                             == subscriber.UniquePlatformUserId)
+                                 .UpdateAsync(old => new()
+                                 {
+                                     UserId = subscriber.UserId,
+                                     AmountCents = subscriber.Cents,
+                                     LastCharge = lastChargeUtc,
+                                     ValidThru = old.ValidThru >= todayDate
+                                         // ? Sql.DateAdd(Sql.DateParts.Month, 1, old.ValidThru).Value
+                                         ? old.ValidThru.AddMonths(1)
+                                         : dateInOneMonth,
+                                 });
 
 
                         dbPatron.UserId = subscriber.UserId;
diff --git a/src/NadekoBot/Modules/Searches/Crypto/CryptoCommands.cs b/src/NadekoBot/Modules/Searches/Crypto/CryptoCommands.cs
index 162ee53c8..07fb9a31a 100644
--- a/src/NadekoBot/Modules/Searches/Crypto/CryptoCommands.cs
+++ b/src/NadekoBot/Modules/Searches/Crypto/CryptoCommands.cs
@@ -65,18 +65,6 @@ public partial class Searches
             var change = (stock.Price - stock.Close).ToString("N2", Culture);
             var changePercent = (1 - (stock.Close / stock.Price)).ToString("P1", Culture);
 
-            var sign50 = stock.Change50d >= 0
-                ? "\\🔼"
-                : "\\🔻";
-
-            var change50 = (stock.Change50d).ToString("P1", Culture);
-
-            var sign200 = stock.Change200d >= 0
-                ? "\\🔼"
-                : "\\🔻";
-
-            var change200 = (stock.Change200d).ToString("P1", Culture);
-
             var price = stock.Price.ToString("C2", localCulture);
 
             var eb = _sender.CreateEmbed()
diff --git a/src/NadekoBot/Modules/Utility/Giveaway/GiveawayService.cs b/src/NadekoBot/Modules/Utility/Giveaway/GiveawayService.cs
index 631b2540e..2de27ec9e 100644
--- a/src/NadekoBot/Modules/Utility/Giveaway/GiveawayService.cs
+++ b/src/NadekoBot/Modules/Utility/Giveaway/GiveawayService.cs
@@ -19,7 +19,6 @@ public sealed class GiveawayService : INService, IReadyExecutor
     private readonly IMemoryCache _cache;
     private SortedSet<GiveawayModel> _giveawayCache = new SortedSet<GiveawayModel>();
     private readonly NadekoRandom _rng;
-    private readonly ConcurrentDictionary<int, GiveawayRerollData> _rerolls = new();
 
     public GiveawayService(DbService db, IBotCredentials creds, DiscordSocketClient client,
         IMessageSenderService sender, IBotStrings strings, ILocalization localization, IMemoryCache cache)
diff --git a/src/NadekoBot/_common/NinjectIKernelExtensions.cs b/src/NadekoBot/_common/DryIocExtensions.cs
similarity index 80%
rename from src/NadekoBot/_common/NinjectIKernelExtensions.cs
rename to src/NadekoBot/_common/DryIocExtensions.cs
index beaaa199b..7ba57642f 100644
--- a/src/NadekoBot/_common/NinjectIKernelExtensions.cs
+++ b/src/NadekoBot/_common/DryIocExtensions.cs
@@ -20,14 +20,6 @@ public static class DryIocExtensions
         return container;
     }
 
-    public static IContainer AddSingleton<TSvc, TImpl>(this IContainer container, Func<IResolverContext, TSvc> factory)
-        where TImpl : TSvc
-    {
-        container.RegisterDelegate(factory, Reuse.Singleton);
-
-        return container;
-    }
-
     public static IContainer AddSingleton<TImpl>(this IContainer container)
     {
         container.Register<TImpl>(Reuse.Singleton);
diff --git a/src/NadekoBot/_common/Medusa/Common/MedusaIoCKernelModule.cs b/src/NadekoBot/_common/Medusa/Common/MedusaIoCKernelModule.cs
index 2cf91b15b..24e776f99 100644
--- a/src/NadekoBot/_common/Medusa/Common/MedusaIoCKernelModule.cs
+++ b/src/NadekoBot/_common/Medusa/Common/MedusaIoCKernelModule.cs
@@ -34,7 +34,7 @@ public sealed class MedusaNinjectIocModule : IIocModule, IDisposable
         if (isLoaded)
             return;
 
-        foreach (var (type, data) in _types)
+        foreach (var (type, _) in _types)
         {
             var attribute = type.GetCustomAttribute<svcAttribute>()!;