diff --git a/back/src/Kyoo.Core/Controllers/Repositories/CollectionRepository.cs b/back/src/Kyoo.Core/Controllers/Repositories/CollectionRepository.cs
index a217fc85..723c21a6 100644
--- a/back/src/Kyoo.Core/Controllers/Repositories/CollectionRepository.cs
+++ b/back/src/Kyoo.Core/Controllers/Repositories/CollectionRepository.cs
@@ -31,46 +31,20 @@ namespace Kyoo.Core.Controllers;
 /// <summary>
 /// A local repository to handle collections
 /// </summary>
-public class CollectionRepository : LocalRepository<Collection>
+public class CollectionRepository(DatabaseContext database) : LocalRepository<Collection>(database)
 {
-	/// <summary>
-	/// The database handle
-	/// </summary>
-	private readonly DatabaseContext _database;
-
-	/// <summary>
-	/// Create a new <see cref="CollectionRepository"/>.
-	/// </summary>
-	/// <param name="database">The database handle to use</param>
-	/// <param name="thumbs">The thumbnail manager used to store images.</param>
-	public CollectionRepository(DatabaseContext database, IThumbnailsManager thumbs)
-		: base(database, thumbs)
-	{
-		_database = database;
-	}
-
 	/// <inheritdoc />
 	public override async Task<ICollection<Collection>> Search(
 		string query,
 		Include<Collection>? include = default
 	)
 	{
-		return await AddIncludes(_database.Collections, include)
+		return await AddIncludes(Database.Collections, include)
 			.Where(x => EF.Functions.ILike(x.Name + " " + x.Slug, $"%{query}%"))
 			.Take(20)
 			.ToListAsync();
 	}
 
-	/// <inheritdoc />
-	public override async Task<Collection> Create(Collection obj)
-	{
-		await base.Create(obj);
-		_database.Entry(obj).State = EntityState.Added;
-		await _database.SaveChangesAsync(() => Get(obj.Slug));
-		await IRepository<Collection>.OnResourceCreated(obj);
-		return obj;
-	}
-
 	/// <inheritdoc />
 	protected override async Task Validate(Collection resource)
 	{
@@ -82,21 +56,13 @@ public class CollectionRepository : LocalRepository<Collection>
 
 	public async Task AddMovie(Guid id, Guid movieId)
 	{
-		_database.AddLinks<Collection, Movie>(id, movieId);
-		await _database.SaveChangesAsync();
+		Database.AddLinks<Collection, Movie>(id, movieId);
+		await Database.SaveChangesAsync();
 	}
 
 	public async Task AddShow(Guid id, Guid showId)
 	{
-		_database.AddLinks<Collection, Show>(id, showId);
-		await _database.SaveChangesAsync();
-	}
-
-	/// <inheritdoc />
-	public override async Task Delete(Collection obj)
-	{
-		_database.Entry(obj).State = EntityState.Deleted;
-		await _database.SaveChangesAsync();
-		await base.Delete(obj);
+		Database.AddLinks<Collection, Show>(id, showId);
+		await Database.SaveChangesAsync();
 	}
 }
diff --git a/back/src/Kyoo.Core/Controllers/Repositories/EpisodeRepository.cs b/back/src/Kyoo.Core/Controllers/Repositories/EpisodeRepository.cs
index b89b3204..d6a8c9ef 100644
--- a/back/src/Kyoo.Core/Controllers/Repositories/EpisodeRepository.cs
+++ b/back/src/Kyoo.Core/Controllers/Repositories/EpisodeRepository.cs
@@ -32,11 +32,8 @@ namespace Kyoo.Core.Controllers;
 /// <summary>
 /// A local repository to handle episodes.
 /// </summary>
-public class EpisodeRepository(
-	DatabaseContext database,
-	IRepository<Show> shows,
-	IThumbnailsManager thumbs
-) : LocalRepository<Episode>(database, thumbs)
+public class EpisodeRepository(DatabaseContext database, IRepository<Show> shows)
+	: LocalRepository<Episode>(database)
 {
 	static EpisodeRepository()
 	{
@@ -64,34 +61,18 @@ public class EpisodeRepository(
 		Include<Episode>? include = default
 	)
 	{
-		return await AddIncludes(database.Episodes, include)
+		return await AddIncludes(Database.Episodes, include)
 			.Where(x => EF.Functions.ILike(x.Name!, $"%{query}%"))
 			.Take(20)
 			.ToListAsync();
 	}
 
-	protected override Task<Episode?> GetDuplicated(Episode item)
-	{
-		if (item is { SeasonNumber: not null, EpisodeNumber: not null })
-			return database.Episodes.FirstOrDefaultAsync(x =>
-				x.ShowId == item.ShowId
-				&& x.SeasonNumber == item.SeasonNumber
-				&& x.EpisodeNumber == item.EpisodeNumber
-			);
-		return database.Episodes.FirstOrDefaultAsync(x =>
-			x.ShowId == item.ShowId && x.AbsoluteNumber == item.AbsoluteNumber
-		);
-	}
-
 	/// <inheritdoc />
 	public override async Task<Episode> Create(Episode obj)
 	{
+		// Set it for the OnResourceCreated event and the return value.
 		obj.ShowSlug = obj.Show?.Slug ?? (await shows.Get(obj.ShowId)).Slug;
-		await base.Create(obj);
-		database.Entry(obj).State = EntityState.Added;
-		await database.SaveChangesAsync(() => GetDuplicated(obj));
-		await IRepository<Episode>.OnResourceCreated(obj);
-		return obj;
+		return await base.Create(obj);
 	}
 
 	/// <inheritdoc />
@@ -111,7 +92,7 @@ public class EpisodeRepository(
 		}
 		if (resource.SeasonId == null && resource.SeasonNumber != null)
 		{
-			resource.Season = await database.Seasons.FirstOrDefaultAsync(x =>
+			resource.Season = await Database.Seasons.FirstOrDefaultAsync(x =>
 				x.ShowId == resource.ShowId && x.SeasonNumber == resource.SeasonNumber
 			);
 		}
@@ -120,14 +101,40 @@ public class EpisodeRepository(
 	/// <inheritdoc />
 	public override async Task Delete(Episode obj)
 	{
-		int epCount = await database
+		int epCount = await Database
 			.Episodes.Where(x => x.ShowId == obj.ShowId)
 			.Take(2)
 			.CountAsync();
-		database.Entry(obj).State = EntityState.Deleted;
-		await database.SaveChangesAsync();
-		await base.Delete(obj);
 		if (epCount == 1)
 			await shows.Delete(obj.ShowId);
+		else
+			await base.Delete(obj);
+	}
+
+	/// <inheritdoc/>
+	public override async Task DeleteAll(Filter<Episode> filter)
+	{
+		ICollection<Episode> items = await GetAll(filter);
+		Guid[] ids = items.Select(x => x.Id).ToArray();
+
+		await Database.Set<Episode>().Where(x => ids.Contains(x.Id)).ExecuteDeleteAsync();
+		foreach (Episode resource in items)
+			await IRepository<Episode>.OnResourceDeleted(resource);
+
+		Guid[] showIds = await Database
+			.Set<Episode>()
+			.Where(filter.ToEfLambda())
+			.Select(x => x.Show!)
+			.Where(x => !x.Episodes!.Any())
+			.Select(x => x.Id)
+			.ToArrayAsync();
+
+		if (!showIds.Any())
+			return;
+
+		Filter<Show>[] showFilters = showIds
+			.Select(x => new Filter<Show>.Eq(nameof(Show.Id), x))
+			.ToArray();
+		await shows.DeleteAll(Filter.Or(showFilters)!);
 	}
 }
diff --git a/back/src/Kyoo.Core/Controllers/Repositories/LocalRepository.cs b/back/src/Kyoo.Core/Controllers/Repositories/LocalRepository.cs
index c0e56b7f..6b5c5026 100644
--- a/back/src/Kyoo.Core/Controllers/Repositories/LocalRepository.cs
+++ b/back/src/Kyoo.Core/Controllers/Repositories/LocalRepository.cs
@@ -29,38 +29,14 @@ using Kyoo.Abstractions.Models.Attributes;
 using Kyoo.Abstractions.Models.Exceptions;
 using Kyoo.Abstractions.Models.Utils;
 using Kyoo.Postgresql;
-using Kyoo.Utils;
 using Microsoft.EntityFrameworkCore;
 
 namespace Kyoo.Core.Controllers;
 
-/// <summary>
-/// A base class to create repositories using Entity Framework.
-/// </summary>
-/// <typeparam name="T">The type of this repository</typeparam>
-public abstract class LocalRepository<T> : IRepository<T>
+public abstract class LocalRepository<T>(DatabaseContext database) : IRepository<T>
 	where T : class, IResource, IQuery
 {
-	/// <summary>
-	/// The Entity Framework's Database handle.
-	/// </summary>
-	protected DbContext Database { get; }
-
-	/// <summary>
-	/// The thumbnail manager used to store images.
-	/// </summary>
-	private readonly IThumbnailsManager _thumbs;
-
-	/// <summary>
-	/// Create a new base <see cref="LocalRepository{T}"/> with the given database handle.
-	/// </summary>
-	/// <param name="database">A database connection to load resources of type <typeparamref name="T"/></param>
-	/// <param name="thumbs">The thumbnail manager used to store images.</param>
-	protected LocalRepository(DbContext database, IThumbnailsManager thumbs)
-	{
-		Database = database;
-		_thumbs = thumbs;
-	}
+	public DatabaseContext Database => database;
 
 	/// <inheritdoc/>
 	public Type RepositoryType => typeof(T);
@@ -127,12 +103,6 @@ public abstract class LocalRepository<T> : IRepository<T>
 		return query;
 	}
 
-	/// <summary>
-	/// Get a resource from it's ID and make the <see cref="Database"/> instance track it.
-	/// </summary>
-	/// <param name="id">The ID of the resource</param>
-	/// <exception cref="ItemNotFoundException">If the item is not found</exception>
-	/// <returns>The tracked resource with the given ID</returns>
 	protected virtual async Task<T> GetWithTracking(Guid id)
 	{
 		T? ret = await Database.Set<T>().AsTracking().FirstOrDefaultAsync(x => x.Id == id);
@@ -174,11 +144,6 @@ public abstract class LocalRepository<T> : IRepository<T>
 		return ret;
 	}
 
-	protected virtual Task<T?> GetDuplicated(T item)
-	{
-		return GetOrDefault(item.Slug);
-	}
-
 	/// <inheritdoc />
 	public virtual Task<T?> GetOrDefault(Guid id, Include<T>? include = default)
 	{
@@ -303,26 +268,9 @@ public abstract class LocalRepository<T> : IRepository<T>
 	public virtual async Task<T> Create(T obj)
 	{
 		await Validate(obj);
-		if (obj is IThumbnails thumbs)
-		{
-			try
-			{
-				await _thumbs.DownloadImages(thumbs);
-			}
-			catch (DuplicatedItemException e) when (e.Existing is null)
-			{
-				throw new DuplicatedItemException(await GetDuplicated(obj));
-			}
-			if (thumbs.Poster != null)
-				Database.Entry(thumbs).Reference(x => x.Poster).TargetEntry!.State =
-					EntityState.Added;
-			if (thumbs.Thumbnail != null)
-				Database.Entry(thumbs).Reference(x => x.Thumbnail).TargetEntry!.State =
-					EntityState.Added;
-			if (thumbs.Logo != null)
-				Database.Entry(thumbs).Reference(x => x.Logo).TargetEntry!.State =
-					EntityState.Added;
-		}
+		Database.Entry(obj).State = EntityState.Added;
+		await Database.SaveChangesAsync(() => Get(obj.Slug));
+		await IRepository<T>.OnResourceCreated(obj);
 		return obj;
 	}
 
@@ -346,27 +294,11 @@ public abstract class LocalRepository<T> : IRepository<T>
 	/// <inheritdoc/>
 	public virtual async Task<T> Edit(T edited)
 	{
-		bool lazyLoading = Database.ChangeTracker.LazyLoadingEnabled;
-		Database.ChangeTracker.LazyLoadingEnabled = false;
-		try
-		{
-			T old = await GetWithTracking(edited.Id);
-
-			Merger.Complete(
-				old,
-				edited,
-				x => x.GetCustomAttribute<LoadableRelationAttribute>() == null
-			);
-			await EditRelations(old, edited);
-			await Database.SaveChangesAsync();
-			await IRepository<T>.OnResourceEdited(old);
-			return old;
-		}
-		finally
-		{
-			Database.ChangeTracker.LazyLoadingEnabled = lazyLoading;
-			Database.ChangeTracker.Clear();
-		}
+		await Validate(edited);
+		Database.Entry(edited).State = EntityState.Modified;
+		await Database.SaveChangesAsync();
+		await IRepository<T>.OnResourceEdited(edited);
+		return edited;
 	}
 
 	/// <inheritdoc/>
@@ -391,39 +323,9 @@ public abstract class LocalRepository<T> : IRepository<T>
 		}
 	}
 
-	/// <summary>
-	/// An overridable method to edit relation of a resource.
-	/// </summary>
-	/// <param name="resource">
-	/// The non edited resource
-	/// </param>
-	/// <param name="changed">
-	/// The new version of <paramref name="resource"/>.
-	/// This item will be saved on the database and replace <paramref name="resource"/>
-	/// </param>
-	/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
-	protected virtual Task EditRelations(T resource, T changed)
-	{
-		if (resource is IThumbnails thumbs && changed is IThumbnails chng)
-		{
-			Database.Entry(thumbs).Reference(x => x.Poster).IsModified =
-				thumbs.Poster != chng.Poster;
-			Database.Entry(thumbs).Reference(x => x.Thumbnail).IsModified =
-				thumbs.Thumbnail != chng.Thumbnail;
-			Database.Entry(thumbs).Reference(x => x.Logo).IsModified = thumbs.Logo != chng.Logo;
-		}
-		return Validate(resource);
-	}
-
-	/// <summary>
-	/// A method called just before saving a new resource to the database.
-	/// It is also called on the default implementation of <see cref="EditRelations"/>
-	/// </summary>
-	/// <param name="resource">The resource that will be saved</param>
 	/// <exception cref="ArgumentException">
 	/// You can throw this if the resource is illegal and should not be saved.
 	/// </exception>
-	/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
 	protected virtual Task Validate(T resource)
 	{
 		if (
@@ -433,25 +335,8 @@ public abstract class LocalRepository<T> : IRepository<T>
 			return Task.CompletedTask;
 		if (string.IsNullOrEmpty(resource.Slug))
 			throw new ArgumentException("Resource can't have null as a slug.");
-		if (int.TryParse(resource.Slug, out int _) || resource.Slug == "random")
-		{
-			try
-			{
-				MethodInfo? setter = typeof(T).GetProperty(nameof(resource.Slug))!.GetSetMethod();
-				if (setter != null)
-					setter.Invoke(resource, new object[] { resource.Slug + '!' });
-				else
-					throw new ArgumentException(
-						"Resources slug can't be number only or the literal \"random\"."
-					);
-			}
-			catch
-			{
-				throw new ArgumentException(
-					"Resources slug can't be number only or the literal \"random\"."
-				);
-			}
-		}
+		if (resource.Slug == "random")
+			throw new ArgumentException("Resources slug can't be the literal \"random\".");
 		return Task.CompletedTask;
 	}
 
@@ -470,18 +355,20 @@ public abstract class LocalRepository<T> : IRepository<T>
 	}
 
 	/// <inheritdoc/>
-	public virtual Task Delete(T obj)
+	public virtual async Task Delete(T obj)
 	{
-		IRepository<T>.OnResourceDeleted(obj);
-		if (obj is IThumbnails thumbs)
-			return _thumbs.DeleteImages(thumbs);
-		return Task.CompletedTask;
+		await Database.Set<T>().Where(x => x.Id == obj.Id).ExecuteDeleteAsync();
+		await IRepository<T>.OnResourceDeleted(obj);
 	}
 
 	/// <inheritdoc/>
-	public async Task DeleteAll(Filter<T> filter)
+	public virtual async Task DeleteAll(Filter<T> filter)
 	{
-		foreach (T resource in await GetAll(filter))
-			await Delete(resource);
+		ICollection<T> items = await GetAll(filter);
+		Guid[] ids = items.Select(x => x.Id).ToArray();
+		await Database.Set<T>().Where(x => ids.Contains(x.Id)).ExecuteDeleteAsync();
+
+		foreach (T resource in items)
+			await IRepository<T>.OnResourceDeleted(resource);
 	}
 }
diff --git a/back/src/Kyoo.Core/Controllers/Repositories/MovieRepository.cs b/back/src/Kyoo.Core/Controllers/Repositories/MovieRepository.cs
index 602f8e8a..d9821252 100644
--- a/back/src/Kyoo.Core/Controllers/Repositories/MovieRepository.cs
+++ b/back/src/Kyoo.Core/Controllers/Repositories/MovieRepository.cs
@@ -27,82 +27,29 @@ using Microsoft.EntityFrameworkCore;
 
 namespace Kyoo.Core.Controllers;
 
-/// <summary>
-/// A local repository to handle shows
-/// </summary>
-public class MovieRepository : LocalRepository<Movie>
+public class MovieRepository(DatabaseContext database, IRepository<Studio> studios)
+	: LocalRepository<Movie>(database)
 {
-	/// <summary>
-	/// The database handle
-	/// </summary>
-	private readonly DatabaseContext _database;
-
-	/// <summary>
-	/// A studio repository to handle creation/validation of related studios.
-	/// </summary>
-	private readonly IRepository<Studio> _studios;
-
-	public MovieRepository(
-		DatabaseContext database,
-		IRepository<Studio> studios,
-		IThumbnailsManager thumbs
-	)
-		: base(database, thumbs)
-	{
-		_database = database;
-		_studios = studios;
-	}
-
 	/// <inheritdoc />
 	public override async Task<ICollection<Movie>> Search(
 		string query,
 		Include<Movie>? include = default
 	)
 	{
-		return await AddIncludes(_database.Movies, include)
+		return await AddIncludes(Database.Movies, include)
 			.Where(x => EF.Functions.ILike(x.Name + " " + x.Slug, $"%{query}%"))
 			.Take(20)
 			.ToListAsync();
 	}
 
-	/// <inheritdoc />
-	public override async Task<Movie> Create(Movie obj)
-	{
-		await base.Create(obj);
-		_database.Entry(obj).State = EntityState.Added;
-		await _database.SaveChangesAsync(() => Get(obj.Slug));
-		await IRepository<Movie>.OnResourceCreated(obj);
-		return obj;
-	}
-
 	/// <inheritdoc />
 	protected override async Task Validate(Movie resource)
 	{
 		await base.Validate(resource);
 		if (resource.Studio != null)
 		{
-			resource.Studio = await _studios.CreateIfNotExists(resource.Studio);
+			resource.Studio = await studios.CreateIfNotExists(resource.Studio);
 			resource.StudioId = resource.Studio.Id;
 		}
 	}
-
-	/// <inheritdoc />
-	protected override async Task EditRelations(Movie resource, Movie changed)
-	{
-		await Validate(changed);
-
-		if (changed.Studio != null || changed.StudioId == null)
-		{
-			await Database.Entry(resource).Reference(x => x.Studio).LoadAsync();
-			resource.Studio = changed.Studio;
-		}
-	}
-
-	/// <inheritdoc />
-	public override async Task Delete(Movie obj)
-	{
-		_database.Remove(obj);
-		await _database.SaveChangesAsync();
-		await base.Delete(obj);
-	}
 }
diff --git a/back/src/Kyoo.Core/Controllers/Repositories/SeasonRepository.cs b/back/src/Kyoo.Core/Controllers/Repositories/SeasonRepository.cs
index 18f53e96..5a31a21a 100644
--- a/back/src/Kyoo.Core/Controllers/Repositories/SeasonRepository.cs
+++ b/back/src/Kyoo.Core/Controllers/Repositories/SeasonRepository.cs
@@ -31,16 +31,8 @@ using Microsoft.Extensions.DependencyInjection;
 
 namespace Kyoo.Core.Controllers;
 
-/// <summary>
-/// A local repository to handle seasons.
-/// </summary>
-public class SeasonRepository : LocalRepository<Season>
+public class SeasonRepository(DatabaseContext database) : LocalRepository<Season>(database)
 {
-	/// <summary>
-	/// The database handle
-	/// </summary>
-	private readonly DatabaseContext _database;
-
 	static SeasonRepository()
 	{
 		// Edit seasons slugs when the show's slug changes.
@@ -61,31 +53,13 @@ public class SeasonRepository : LocalRepository<Season>
 		};
 	}
 
-	/// <summary>
-	/// Create a new <see cref="SeasonRepository"/>.
-	/// </summary>
-	/// <param name="database">The database handle that will be used</param>
-	/// <param name="thumbs">The thumbnail manager used to store images.</param>
-	public SeasonRepository(DatabaseContext database, IThumbnailsManager thumbs)
-		: base(database, thumbs)
-	{
-		_database = database;
-	}
-
-	protected override Task<Season?> GetDuplicated(Season item)
-	{
-		return _database.Seasons.FirstOrDefaultAsync(x =>
-			x.ShowId == item.ShowId && x.SeasonNumber == item.SeasonNumber
-		);
-	}
-
 	/// <inheritdoc/>
 	public override async Task<ICollection<Season>> Search(
 		string query,
 		Include<Season>? include = default
 	)
 	{
-		return await AddIncludes(_database.Seasons, include)
+		return await AddIncludes(Database.Seasons, include)
 			.Where(x => EF.Functions.ILike(x.Name!, $"%{query}%"))
 			.Take(20)
 			.ToListAsync();
@@ -94,14 +68,11 @@ public class SeasonRepository : LocalRepository<Season>
 	/// <inheritdoc/>
 	public override async Task<Season> Create(Season obj)
 	{
-		await base.Create(obj);
+		// Set it for the OnResourceCreated event and the return value.
 		obj.ShowSlug =
-			(await _database.Shows.FirstOrDefaultAsync(x => x.Id == obj.ShowId))?.Slug
+			(await Database.Shows.FirstOrDefaultAsync(x => x.Id == obj.ShowId))?.Slug
 			?? throw new ItemNotFoundException($"No show found with ID {obj.ShowId}");
-		_database.Entry(obj).State = EntityState.Added;
-		await _database.SaveChangesAsync(() => GetDuplicated(obj));
-		await IRepository<Season>.OnResourceCreated(obj);
-		return obj;
+		return await base.Create(obj);
 	}
 
 	/// <inheritdoc/>
@@ -120,12 +91,4 @@ public class SeasonRepository : LocalRepository<Season>
 			resource.ShowId = resource.Show.Id;
 		}
 	}
-
-	/// <inheritdoc/>
-	public override async Task Delete(Season obj)
-	{
-		_database.Remove(obj);
-		await _database.SaveChangesAsync();
-		await base.Delete(obj);
-	}
 }
diff --git a/back/src/Kyoo.Core/Controllers/Repositories/ShowRepository.cs b/back/src/Kyoo.Core/Controllers/Repositories/ShowRepository.cs
index 2253da0f..79f826aa 100644
--- a/back/src/Kyoo.Core/Controllers/Repositories/ShowRepository.cs
+++ b/back/src/Kyoo.Core/Controllers/Repositories/ShowRepository.cs
@@ -23,87 +23,33 @@ using Kyoo.Abstractions.Controllers;
 using Kyoo.Abstractions.Models;
 using Kyoo.Abstractions.Models.Utils;
 using Kyoo.Postgresql;
-using Kyoo.Utils;
 using Microsoft.EntityFrameworkCore;
 
 namespace Kyoo.Core.Controllers;
 
-/// <summary>
-/// A local repository to handle shows
-/// </summary>
-public class ShowRepository : LocalRepository<Show>
+public class ShowRepository(DatabaseContext database, IRepository<Studio> studios)
+	: LocalRepository<Show>(database)
 {
-	/// <summary>
-	/// The database handle
-	/// </summary>
-	private readonly DatabaseContext _database;
-
-	/// <summary>
-	/// A studio repository to handle creation/validation of related studios.
-	/// </summary>
-	private readonly IRepository<Studio> _studios;
-
-	public ShowRepository(
-		DatabaseContext database,
-		IRepository<Studio> studios,
-		IThumbnailsManager thumbs
-	)
-		: base(database, thumbs)
-	{
-		_database = database;
-		_studios = studios;
-	}
-
 	/// <inheritdoc />
 	public override async Task<ICollection<Show>> Search(
 		string query,
 		Include<Show>? include = default
 	)
 	{
-		return await AddIncludes(_database.Shows, include)
+		return await AddIncludes(Database.Shows, include)
 			.Where(x => EF.Functions.ILike(x.Name + " " + x.Slug, $"%{query}%"))
 			.Take(20)
 			.ToListAsync();
 	}
 
-	/// <inheritdoc />
-	public override async Task<Show> Create(Show obj)
-	{
-		await base.Create(obj);
-		_database.Entry(obj).State = EntityState.Added;
-		await _database.SaveChangesAsync(() => Get(obj.Slug));
-		await IRepository<Show>.OnResourceCreated(obj);
-		return obj;
-	}
-
 	/// <inheritdoc />
 	protected override async Task Validate(Show resource)
 	{
 		await base.Validate(resource);
 		if (resource.Studio != null)
 		{
-			resource.Studio = await _studios.CreateIfNotExists(resource.Studio);
+			resource.Studio = await studios.CreateIfNotExists(resource.Studio);
 			resource.StudioId = resource.Studio.Id;
 		}
 	}
-
-	/// <inheritdoc />
-	protected override async Task EditRelations(Show resource, Show changed)
-	{
-		await Validate(changed);
-
-		if (changed.Studio != null || changed.StudioId == null)
-		{
-			await Database.Entry(resource).Reference(x => x.Studio).LoadAsync();
-			resource.Studio = changed.Studio;
-		}
-	}
-
-	/// <inheritdoc />
-	public override async Task Delete(Show obj)
-	{
-		_database.Remove(obj);
-		await _database.SaveChangesAsync();
-		await base.Delete(obj);
-	}
 }
diff --git a/back/src/Kyoo.Core/Controllers/Repositories/StudioRepository.cs b/back/src/Kyoo.Core/Controllers/Repositories/StudioRepository.cs
index 7cdc1358..250a5a74 100644
--- a/back/src/Kyoo.Core/Controllers/Repositories/StudioRepository.cs
+++ b/back/src/Kyoo.Core/Controllers/Repositories/StudioRepository.cs
@@ -19,11 +19,9 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
-using Kyoo.Abstractions.Controllers;
 using Kyoo.Abstractions.Models;
 using Kyoo.Abstractions.Models.Utils;
 using Kyoo.Postgresql;
-using Kyoo.Utils;
 using Microsoft.EntityFrameworkCore;
 
 namespace Kyoo.Core.Controllers;
@@ -31,51 +29,17 @@ namespace Kyoo.Core.Controllers;
 /// <summary>
 /// A local repository to handle studios
 /// </summary>
-public class StudioRepository : LocalRepository<Studio>
+public class StudioRepository(DatabaseContext database) : LocalRepository<Studio>(database)
 {
-	/// <summary>
-	/// The database handle
-	/// </summary>
-	private readonly DatabaseContext _database;
-
-	/// <summary>
-	/// Create a new <see cref="StudioRepository"/>.
-	/// </summary>
-	/// <param name="database">The database handle</param>
-	/// <param name="thumbs">The thumbnail manager used to store images.</param>
-	public StudioRepository(DatabaseContext database, IThumbnailsManager thumbs)
-		: base(database, thumbs)
-	{
-		_database = database;
-	}
-
 	/// <inheritdoc />
 	public override async Task<ICollection<Studio>> Search(
 		string query,
 		Include<Studio>? include = default
 	)
 	{
-		return await AddIncludes(_database.Studios, include)
+		return await AddIncludes(Database.Studios, include)
 			.Where(x => EF.Functions.ILike(x.Name, $"%{query}%"))
 			.Take(20)
 			.ToListAsync();
 	}
-
-	/// <inheritdoc />
-	public override async Task<Studio> Create(Studio obj)
-	{
-		await base.Create(obj);
-		_database.Entry(obj).State = EntityState.Added;
-		await _database.SaveChangesAsync(() => Get(obj.Slug));
-		await IRepository<Studio>.OnResourceCreated(obj);
-		return obj;
-	}
-
-	/// <inheritdoc />
-	public override async Task Delete(Studio obj)
-	{
-		_database.Entry(obj).State = EntityState.Deleted;
-		await _database.SaveChangesAsync();
-		await base.Delete(obj);
-	}
 }
diff --git a/back/src/Kyoo.Core/Controllers/Repositories/UserRepository.cs b/back/src/Kyoo.Core/Controllers/Repositories/UserRepository.cs
index e4a62db9..81a2c188 100644
--- a/back/src/Kyoo.Core/Controllers/Repositories/UserRepository.cs
+++ b/back/src/Kyoo.Core/Controllers/Repositories/UserRepository.cs
@@ -40,9 +40,8 @@ public class UserRepository(
 	DatabaseContext database,
 	DbConnection db,
 	SqlVariableContext context,
-	IThumbnailsManager thumbs,
 	PermissionOption options
-) : LocalRepository<User>(database, thumbs), IUserRepository
+) : LocalRepository<User>(database), IUserRepository
 {
 	/// <inheritdoc />
 	public override async Task<ICollection<User>> Search(
@@ -50,7 +49,7 @@ public class UserRepository(
 		Include<User>? include = default
 	)
 	{
-		return await AddIncludes(database.Users, include)
+		return await AddIncludes(Database.Users, include)
 			.Where(x => EF.Functions.ILike(x.Username, $"%{query}%"))
 			.Take(20)
 			.ToListAsync();
@@ -60,26 +59,14 @@ public class UserRepository(
 	public override async Task<User> Create(User obj)
 	{
 		// If no users exists, the new one will be an admin. Give it every permissions.
-		if (!await database.Users.AnyAsync())
+		if (!await Database.Users.AnyAsync())
 			obj.Permissions = PermissionOption.Admin;
 		else if (!options.RequireVerification)
 			obj.Permissions = options.NewUser;
 		else
 			obj.Permissions = Array.Empty<string>();
 
-		await base.Create(obj);
-		database.Entry(obj).State = EntityState.Added;
-		await database.SaveChangesAsync(() => Get(obj.Slug));
-		await IRepository<User>.OnResourceCreated(obj);
-		return obj;
-	}
-
-	/// <inheritdoc />
-	public override async Task Delete(User obj)
-	{
-		database.Entry(obj).State = EntityState.Deleted;
-		await database.SaveChangesAsync();
-		await base.Delete(obj);
+		return await base.Create(obj);
 	}
 
 	public Task<User?> GetByExternalId(string provider, string id)
@@ -109,8 +96,8 @@ public class UserRepository(
 		User user = await GetWithTracking(userId);
 		user.ExternalId[provider] = token;
 		// without that, the change tracker does not find the modification. /shrug
-		database.Entry(user).Property(x => x.ExternalId).IsModified = true;
-		await database.SaveChangesAsync();
+		Database.Entry(user).Property(x => x.ExternalId).IsModified = true;
+		await Database.SaveChangesAsync();
 		return user;
 	}
 
@@ -119,8 +106,8 @@ public class UserRepository(
 		User user = await GetWithTracking(userId);
 		user.ExternalId.Remove(provider);
 		// without that, the change tracker does not find the modification. /shrug
-		database.Entry(user).Property(x => x.ExternalId).IsModified = true;
-		await database.SaveChangesAsync();
+		Database.Entry(user).Property(x => x.ExternalId).IsModified = true;
+		await Database.SaveChangesAsync();
 		return user;
 	}
 }
diff --git a/back/src/Kyoo.Core/Extensions/ServiceExtensions.cs b/back/src/Kyoo.Core/Extensions/ServiceExtensions.cs
index 2c92fb56..9bed18bf 100644
--- a/back/src/Kyoo.Core/Extensions/ServiceExtensions.cs
+++ b/back/src/Kyoo.Core/Extensions/ServiceExtensions.cs
@@ -16,9 +16,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Kyoo. If not, see <https://www.gnu.org/licenses/>.
 
-using System;
 using System.Linq;
-using System.Linq.Expressions;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 using AspNetCore.Proxy;
diff --git a/back/src/Kyoo.Meilisearch/MeilisearchModule.cs b/back/src/Kyoo.Meilisearch/MeilisearchModule.cs
index bc09420e..f2e971b4 100644
--- a/back/src/Kyoo.Meilisearch/MeilisearchModule.cs
+++ b/back/src/Kyoo.Meilisearch/MeilisearchModule.cs
@@ -16,9 +16,6 @@
 // You should have received a copy of the GNU General Public License
 // along with Kyoo. If not, see <https://www.gnu.org/licenses/>.
 
-using System;
-using System.Collections.Generic;
-using System.Threading.Tasks;
 using Kyoo.Abstractions.Controllers;
 using Kyoo.Abstractions.Models;
 using Meilisearch;