diff --git a/PeerAtCodeFramework.jar b/PeerAtCodeFramework.jar
index 58440ec..b6c9c21 100644
Binary files a/PeerAtCodeFramework.jar and b/PeerAtCodeFramework.jar differ
diff --git a/src/dev/peerat/backend/Main.java b/src/dev/peerat/backend/Main.java
index 1ab997d..a5790a2 100644
--- a/src/dev/peerat/backend/Main.java
+++ b/src/dev/peerat/backend/Main.java
@@ -51,6 +51,7 @@ import dev.peerat.backend.routes.users.ProfileSettings;
 import dev.peerat.backend.routes.users.Register;
 import dev.peerat.backend.utils.Mail;
 import dev.peerat.framework.Context;
+import dev.peerat.framework.DependencyInjector;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
 import dev.peerat.framework.Locker;
@@ -177,44 +178,18 @@ public class Main{
 	}
 
 	private static void initRoutes(Router<PeerAtUser> router, DatabaseRepository repo, Configuration config) throws Exception{
-		Map<String, Integer> playersWaiting = new HashMap<>();
-		Mail mail = config.getMail();
-		Locker<Group> groupLock = new Locker<>();
-		Locker<Completion> leaderboard = new Locker<>();
-		
-		if(config.isProduction())
-			router.
-				register(new Register(repo, playersWaiting, mail)).
-				register(new MailConfirmation(repo, router, config.getUsersFiles(), config.getGitToken(), playersWaiting, mail));
-		
-		router.
-			register(new Login(repo, router)).
-			register(new ProfileSettings(repo)).
-			register(new ChangePassword(repo)).
-//			register(new ForgotPassword(router, repo, mail)).
-		
-			register(new DynamicLogs(router.getLogger(), repo)).
-			register(new ExceptionLogs(router.getExceptionLogger())).
-			
-			register(new WebHookLeaderboard(leaderboard)).
-		
-			register(new ChapterElement(repo)).
-			register(new ChapterList(repo)).
-			register(new PuzzleElement(repo)).
-			register(new Result(repo)).
-			register(new Leaderboard(repo)).
-			register(new PlayerDetails(repo)).
-			register(new BadgeDetails(repo)).
-		
-			register(new DynamicLeaderboard(repo, leaderboard)).
-			register(new PuzzleResponse(repo, config.getUsersFiles(), leaderboard)).
-		
-			register(new GroupCreate(repo, groupLock, config.getGroupJoinMinutes())).
-			register(new GroupList(repo)).
-			register(new GroupJoin(repo, config.getGroupJoinMinutes(), config.getGroupQuitMinutes(), leaderboard)).
-			register(new GroupQuit(repo, config.getGroupJoinMinutes(), leaderboard))
-			
-			.register(new Swagger(new RouteExtracter(router),config.getTokenIssuer()));
+		router.registerPackages(new DependencyInjector()
+				.of(repo, router, config.getMail(), new RouteExtracter(router))
+				.of("waitting", new HashMap<>())
+				.of("leaderboard", new Locker<>())
+				.of("log", router.getLogger())
+				.of("exception", router.getExceptionLogger())
+				.of("groups", new Locker<>())
+				.of("groupDelay", config.getGroupJoinMinutes())
+				.of("waitTime", config.getGroupQuitMinutes())
+				.of("usersFiles", config.getUsersFiles())
+				.of("gitToken", config.getGitToken())
+				.of("issuer", config.getTokenIssuer()));
 		
 //		Bot bot = new Bot(config, repo, groupLock);
 //		bot.start();
diff --git a/src/dev/peerat/backend/repository/DatabaseRepository.java b/src/dev/peerat/backend/repository/DatabaseRepository.java
index 0e1b0d7..193b829 100644
--- a/src/dev/peerat/backend/repository/DatabaseRepository.java
+++ b/src/dev/peerat/backend/repository/DatabaseRepository.java
@@ -8,7 +8,9 @@ import java.sql.ResultSetMetaData;
 import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 import java.util.SortedSet;
 import java.util.TreeSet;
 
@@ -32,6 +34,56 @@ public class DatabaseRepository {
 	public DatabaseRepository(Configuration config) {
 		this.config = config;
 	}
+	
+	public void hotfix() throws Exception{
+		ensureConnection();
+		
+		PreparedStatement stmt = con.prepareStatement("SELECT c.*, g.* FROM completions c JOIN puzzles p ON c.fk_puzzle = p.id_puzzle JOIN containsGroups cg ON cg.fk_player = c.fk_player JOIN groups g ON g.id_group = cg.fk_group WHERE g.fk_chapter = 12 AND p.fk_chapter = 12;");
+		ResultSet results = stmt.executeQuery();
+		List<Completionz> list = new ArrayList<>();
+		while(results.next()){
+			Completionz complete = new Completionz(results);
+			list.add(complete);
+		}
+		Map<Integer, Map<Integer, Completionz>> map = new HashMap<>();
+		for(Completionz comp : list){
+			Map<Integer,Completionz> puz = map.get(comp.puzzle);
+			if(puz == null){
+				puz = new HashMap<>();
+				map.put(comp.puzzle, puz);
+			}
+			Completionz c = puz.get(comp.groups);
+			if(c == null){
+				puz.put(comp.groups, comp);
+			}else{
+				if(comp.score >= c.score){
+					puz.put(comp.groups, comp);
+					System.out.println("remove compl "+c.id);
+				}
+			}
+		}
+	}
+	
+	private static class Completionz{
+		
+		public int id;
+		public int puzzle;
+		public int player;
+		public int tries;
+		public int score;
+		public int groups;
+		
+		public Completionz(ResultSet result) throws Exception{
+			id = result.getInt("id_completion");
+			puzzle = result.getInt("fk_puzzle");
+			player = result.getInt("fk_player");
+			tries = result.getInt("tries");
+			score = result.getInt("score");
+			groups = result.getInt("id_group");
+			System.out.println(id);
+		}
+		
+	}
 
 	private void ensureConnection() throws SQLException {
 		if (con == null || (!con.isValid(5))) {
diff --git a/src/dev/peerat/backend/routes/DynamicLeaderboard.java b/src/dev/peerat/backend/routes/DynamicLeaderboard.java
index b2df758..5748e01 100644
--- a/src/dev/peerat/backend/routes/DynamicLeaderboard.java
+++ b/src/dev/peerat/backend/routes/DynamicLeaderboard.java
@@ -8,6 +8,7 @@ import dev.peerat.backend.repository.DatabaseRepository;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Locker;
 import dev.peerat.framework.Locker.Key;
 import dev.peerat.framework.Route;
@@ -16,7 +17,7 @@ public class DynamicLeaderboard extends Leaderboard{
 	
 	private Locker<Completion> locker;
 
-	public DynamicLeaderboard(DatabaseRepository databaseRepo, Locker<Completion> locker){
+	public DynamicLeaderboard(DatabaseRepository databaseRepo, @Injection("leaderboard") Locker<Completion> locker){
 		super(databaseRepo);
 		this.locker = locker;
 	}
diff --git a/src/dev/peerat/backend/routes/PlayerDetails.java b/src/dev/peerat/backend/routes/PlayerDetails.java
index e309ae1..8bcff6e 100644
--- a/src/dev/peerat/backend/routes/PlayerDetails.java
+++ b/src/dev/peerat/backend/routes/PlayerDetails.java
@@ -1,6 +1,5 @@
 package dev.peerat.backend.routes;
 
-import java.util.Base64;
 import java.util.regex.Matcher;
 
 import dev.peerat.backend.bonus.extract.RouteDoc;
diff --git a/src/dev/peerat/backend/routes/PuzzleResponse.java b/src/dev/peerat/backend/routes/PuzzleResponse.java
index 321e5e3..bef440e 100644
--- a/src/dev/peerat/backend/routes/PuzzleResponse.java
+++ b/src/dev/peerat/backend/routes/PuzzleResponse.java
@@ -22,6 +22,7 @@ import dev.peerat.backend.repository.DatabaseRepository;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Locker;
 import dev.peerat.framework.Response;
 import dev.peerat.framework.Route;
@@ -33,7 +34,7 @@ public class PuzzleResponse implements Response {
 	
 	private final Locker<Completion> leaderboard;
 	
-	public PuzzleResponse(DatabaseRepository databaseRepo, String initUsersFilesPath, Locker<Completion> locker){
+	public PuzzleResponse(DatabaseRepository databaseRepo, @Injection("usersFiles") String initUsersFilesPath, @Injection("leaderboard") Locker<Completion> locker){
 		this.databaseRepo = databaseRepo;
 		usersFilesPath = initUsersFilesPath;
 		this.leaderboard = locker;
diff --git a/src/dev/peerat/backend/routes/Swagger.java b/src/dev/peerat/backend/routes/Swagger.java
index 24a90e2..ba271c2 100644
--- a/src/dev/peerat/backend/routes/Swagger.java
+++ b/src/dev/peerat/backend/routes/Swagger.java
@@ -6,6 +6,7 @@ import dev.peerat.backend.bonus.extract.RouteExtracter;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Response;
 import dev.peerat.framework.Route;
 
@@ -13,7 +14,7 @@ public class Swagger implements Response{
 	
 	private String json;
 	
-	public Swagger(RouteExtracter extracter, String host){
+	public Swagger(RouteExtracter extracter, @Injection("issuer") String host){
 		try{
 			this.json = extracter.swagger(host).toString();
 		}catch(Exception e){
diff --git a/src/dev/peerat/backend/routes/admins/DynamicLogs.java b/src/dev/peerat/backend/routes/admins/DynamicLogs.java
index 3248de9..a76ff72 100644
--- a/src/dev/peerat/backend/routes/admins/DynamicLogs.java
+++ b/src/dev/peerat/backend/routes/admins/DynamicLogs.java
@@ -9,6 +9,7 @@ import dev.peerat.backend.repository.DatabaseRepository;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Locker;
 import dev.peerat.framework.Locker.Key;
 import dev.peerat.framework.Response;
@@ -20,7 +21,7 @@ public class DynamicLogs implements Response{
 	private Locker<Context> locker; //Context
 	private DatabaseRepository repo;
 	
-	public DynamicLogs(Locker<Context> locker,  DatabaseRepository repo){
+	public DynamicLogs(@Injection("log") Locker<Context> locker,  DatabaseRepository repo){
 		this.locker = locker;
 		this.repo = repo;
 	}
diff --git a/src/dev/peerat/backend/routes/admins/ExceptionLogs.java b/src/dev/peerat/backend/routes/admins/ExceptionLogs.java
index 900c796..a8fdeff 100644
--- a/src/dev/peerat/backend/routes/admins/ExceptionLogs.java
+++ b/src/dev/peerat/backend/routes/admins/ExceptionLogs.java
@@ -5,6 +5,7 @@ import java.util.regex.Matcher;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Locker;
 import dev.peerat.framework.Locker.Key;
 import dev.peerat.framework.Response;
@@ -16,7 +17,7 @@ public class ExceptionLogs implements Response{
 	
 	private Locker<Exception> locker;
 	
-	public ExceptionLogs(Locker<Exception> locker){
+	public ExceptionLogs(@Injection("exception") Locker<Exception> locker){
 		this.locker = locker;
 	}
 	
diff --git a/src/dev/peerat/backend/routes/admins/WebHookLeaderboard.java b/src/dev/peerat/backend/routes/admins/WebHookLeaderboard.java
index aa7e7e1..9a3b560 100644
--- a/src/dev/peerat/backend/routes/admins/WebHookLeaderboard.java
+++ b/src/dev/peerat/backend/routes/admins/WebHookLeaderboard.java
@@ -6,6 +6,7 @@ import dev.peerat.backend.model.Completion;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Locker;
 import dev.peerat.framework.Response;
 import dev.peerat.framework.Route;
@@ -14,7 +15,7 @@ public class WebHookLeaderboard implements Response{
 	
 	private Locker<Completion> locker;
 	
-	public WebHookLeaderboard(Locker<Completion> locker){
+	public WebHookLeaderboard(@Injection("leaderboard") Locker<Completion> locker){
 		this.locker = locker;
 	}
 	
diff --git a/src/dev/peerat/backend/routes/groups/GroupCreate.java b/src/dev/peerat/backend/routes/groups/GroupCreate.java
index c8ddbc4..711dfc6 100644
--- a/src/dev/peerat/backend/routes/groups/GroupCreate.java
+++ b/src/dev/peerat/backend/routes/groups/GroupCreate.java
@@ -14,6 +14,7 @@ import dev.peerat.backend.utils.FormResponse;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Locker;
 import dev.peerat.framework.Response;
 import dev.peerat.framework.Route;
@@ -25,7 +26,7 @@ public class GroupCreate extends FormResponse {
 	private DatabaseRepository repo;
 	private int groupDelay;
 
-	public GroupCreate(DatabaseRepository repo, Locker<Group> locker, int groupDelay){
+	public GroupCreate(DatabaseRepository repo, @Injection("groups") Locker<Group> locker, @Injection("groupDelay") int groupDelay){
 		this.repo = repo;
 		this.locker = locker;
 		this.groupDelay = groupDelay;
diff --git a/src/dev/peerat/backend/routes/groups/GroupJoin.java b/src/dev/peerat/backend/routes/groups/GroupJoin.java
index ba2736c..f90fda4 100644
--- a/src/dev/peerat/backend/routes/groups/GroupJoin.java
+++ b/src/dev/peerat/backend/routes/groups/GroupJoin.java
@@ -14,6 +14,7 @@ import dev.peerat.backend.repository.DatabaseRepository;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Locker;
 import dev.peerat.framework.Response;
 import dev.peerat.framework.Route;
@@ -26,7 +27,7 @@ public class GroupJoin implements Response{
 	
 	private final Locker<Completion> leaderboard;
 
-	public GroupJoin(DatabaseRepository repo, int groupDelay, String waitTime, Locker<Completion> locker){
+	public GroupJoin(DatabaseRepository repo, @Injection("groupDelay") int groupDelay, @Injection("waitTime") String waitTime, @Injection("leaderboard") Locker<Completion> locker){
 		this.repo = repo;
 		this.groupDelay = groupDelay;
 		this.waitTime = waitTime;
diff --git a/src/dev/peerat/backend/routes/groups/GroupQuit.java b/src/dev/peerat/backend/routes/groups/GroupQuit.java
index d710613..c319a13 100644
--- a/src/dev/peerat/backend/routes/groups/GroupQuit.java
+++ b/src/dev/peerat/backend/routes/groups/GroupQuit.java
@@ -14,6 +14,7 @@ import dev.peerat.backend.repository.DatabaseRepository;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Locker;
 import dev.peerat.framework.Response;
 import dev.peerat.framework.Route;
@@ -25,7 +26,7 @@ public class GroupQuit implements Response{
 	
 	private final Locker<Completion> leaderboard;
 
-	public GroupQuit(DatabaseRepository repo, int groupDelay, Locker<Completion> locker){
+	public GroupQuit(DatabaseRepository repo, @Injection("groupDelay") int groupDelay, @Injection("leaderboard") Locker<Completion> locker){
 		this.repo = repo;
 		this.groupDelay = groupDelay;
 		
diff --git a/src/dev/peerat/backend/routes/users/MailConfirmation.java b/src/dev/peerat/backend/routes/users/MailConfirmation.java
index f7185bd..27892b0 100644
--- a/src/dev/peerat/backend/routes/users/MailConfirmation.java
+++ b/src/dev/peerat/backend/routes/users/MailConfirmation.java
@@ -32,6 +32,7 @@ import dev.peerat.backend.utils.Mail;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Route;
 import dev.peerat.framework.Router;
 import dev.peerat.framework.utils.json.JsonMap;
@@ -50,9 +51,9 @@ public class MailConfirmation extends FormResponse {
 	public MailConfirmation(
 			DatabaseRepository databaseRepo,
 			Router<PeerAtUser> router,
-			String initUsersFilesPath,
-			String gitToken,
-			Map<String, Integer> playersWaiting,
+			@Injection("usersFiles") String initUsersFilesPath,
+			@Injection("gitToken") String gitToken,
+			@Injection("waitting") Map<String, Integer> playersWaiting,
 			Mail mail) throws NoSuchAlgorithmException{
 		
 		this.databaseRepo = databaseRepo;
diff --git a/src/dev/peerat/backend/routes/users/Register.java b/src/dev/peerat/backend/routes/users/Register.java
index b4e40f7..96a4ccb 100644
--- a/src/dev/peerat/backend/routes/users/Register.java
+++ b/src/dev/peerat/backend/routes/users/Register.java
@@ -13,6 +13,7 @@ import dev.peerat.backend.utils.Mail;
 import dev.peerat.framework.Context;
 import dev.peerat.framework.HttpReader;
 import dev.peerat.framework.HttpWriter;
+import dev.peerat.framework.Injection;
 import dev.peerat.framework.Route;
 import dev.peerat.framework.utils.json.JsonMap;
 
@@ -22,7 +23,7 @@ public class Register extends FormResponse {
 	private Map<String, Integer> playersWaiting;
 	private Mail mail;
 
-	public Register(DatabaseRepository databaseRepo, Map<String, Integer> playersWaiting, Mail mail){
+	public Register(DatabaseRepository databaseRepo, @Injection("waitting") Map<String, Integer> playersWaiting, Mail mail){
 		this.databaseRepo = databaseRepo;
 		this.playersWaiting = playersWaiting;
 		this.mail = mail;