diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index fab9922..0c8cf8e 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -5,52 +5,26 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="56c685a1-f609-4ffd-a951-849beb2a7f8d" name="Changes" comment="currently refactoring a lot">
-      <change afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Task.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskImpl.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Tasks.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsCommand.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsGetLiteral.java" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsSetLiteral.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/../build-logic/convention/src/main/kotlin/de/kentoj/scrow/DatabaseConvention.kt" beforeDir="false" afterPath="$PROJECT_DIR$/../build-logic/convention/src/main/kotlin/de/kentoj/scrow/DatabaseConvention.kt" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskState.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-api/build.gradle.kts" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-api/build.gradle.kts" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/EconomyService.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/misc/EconomyService.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/PlayerManager.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/misc/PlayerManager.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/ScrowAPI.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/ScrowAPI.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/friends/FriendRequestService.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/friends/FriendRequestService.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/friends/FriendshipService.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/friends/FriendshipService.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/build.gradle.kts" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/build.gradle.kts" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/CoreImplPlugin.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/CoreImplPlugin.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/ScrowAPISurface.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/ScrowAPISurface.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/crown/CrownDeployServerLiteral.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/crown/CrownDeployServerLiteral.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/crown/CrownDestroyServerLiteral.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/crown/CrownDestroyServerLiteral.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/crown/CrownListServersLiteral.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/crown/CrownListServersLiteral.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/CoinsCommand.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/InMemoryEconomyService.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/InMemoryEconomyService.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/MongoEconomyService.java" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/PostgresEconomyService.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/PostgresEconomyService.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Task.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Task.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskImpl.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskImpl.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Tasks.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Tasks.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsCommand.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsCommand.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsGetLiteral.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsGetLiteral.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsSetLiteral.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsSetLiteral.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendAddLiteral.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendAddLiteral.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendCommand.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendCommand.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendListLiteral.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendListLiteral.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRemoveLiteral.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRemoveLiteral.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRequestsLiteral.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRequestsLiteral.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/InMemoryFriendshipService.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/InMemoryFriendshipService.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/MongoFriendshipService.java" beforeDir="false" />
       <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/PostgresFriendshipService.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/PostgresFriendshipService.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/InMemoryFriendRequestService.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/InMemoryFriendRequestService.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/MongoFriendRequestService.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/FriendRequestImpl.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/FriendRequestImpl.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/PostgresFriendRequestService.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/PostgresFriendRequestService.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/playermanager/PlayerManagerImpl.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/playermanager/PlayerManagerImpl.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/LobbyCommand.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/LobbyCommand.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/PlayCommand.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/PlayCommand.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-lib/build.gradle.kts" beforeDir="false" afterPath="$PROJECT_DIR$/core-lib/build.gradle.kts" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/core-lib/src/main/java/de/kentoj/scrowlib/servermanager/InstanceManager.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-lib/src/main/java/de/kentoj/scrowlib/servermanager/InstanceManager.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-lib/src/main/java/de/kentoj/scrowlib/servermanager/InstanceManagerImpl.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-lib/src/main/java/de/kentoj/scrowlib/servermanager/InstanceManagerImpl.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-velocity-api/build.gradle.kts" beforeDir="false" afterPath="$PROJECT_DIR$/core-velocity-api/build.gradle.kts" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-velocity-impl/src/main/java/de/kentoj/scrow/corevelocity/command/OnlineCommand.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-velocity-impl/src/main/java/de/kentoj/scrow/corevelocity/command/OnlineCommand.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-velocity-impl/src/main/java/de/kentoj/scrow/corevelocity/privmsg/MsgCommand.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-velocity-impl/src/main/java/de/kentoj/scrow/corevelocity/privmsg/MsgCommand.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-velocity-impl/src/main/java/de/kentoj/scrow/corevelocity/privmsg/ReplyCommand.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-velocity-impl/src/main/java/de/kentoj/scrow/corevelocity/privmsg/ReplyCommand.java" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/core-velocity-impl/src/main/java/de/kentoj/scrow/corevelocity/server/ServerRegisterWatchdog.java" beforeDir="false" afterPath="$PROJECT_DIR$/core-velocity-impl/src/main/java/de/kentoj/scrow/corevelocity/server/ServerRegisterWatchdog.java" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -149,6 +123,9 @@
   <component name="HighlightingSettingsPerFile">
     <setting file="jar://$USER_HOME$/.gradle/caches/modules-2/files-2.1/io.projectreactor/reactor-core/3.8.5/ed6c3f423d84bf282e50a4f7432a8d65af321efb/reactor-core-3.8.5-sources.jar!/reactor/core/publisher/Mono.java" root0="SKIP_INSPECTION" />
   </component>
+  <component name="ProblemsViewState">
+    <option name="autoscrollToSource" value="true" />
+  </component>
   <component name="ProjectColorInfo">{
   &quot;customColor&quot;: &quot;&quot;,
   &quot;associatedIndex&quot;: 0
@@ -161,31 +138,31 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent">{
-  &quot;keyToString&quot;: {
-    &quot;Gradle.Download Sources.executor&quot;: &quot;Run&quot;,
-    &quot;Gradle.core [build].executor&quot;: &quot;Debug&quot;,
-    &quot;Gradle.core [clean].executor&quot;: &quot;Run&quot;,
-    &quot;Gradle.core [publishAllPublicationsToScrowRepository].executor&quot;: &quot;Run&quot;,
-    &quot;Gradle.core [publishCoreLibPublicationToScrowRepository].executor&quot;: &quot;Run&quot;,
-    &quot;Gradle.core:core-bukkit-api [build].executor&quot;: &quot;Run&quot;,
-    &quot;Gradle.core:core-bukkit-api [clean].executor&quot;: &quot;Run&quot;,
-    &quot;Gradle.core:core-lib [publishAllPublicationsToScrowRepository].executor&quot;: &quot;Run&quot;,
-    &quot;Gradle.core:core-lib [publishCoreLibPublicationToMavenLocal].executor&quot;: &quot;Run&quot;,
-    &quot;Gradle.core:core-lib [publishCoreLibPublicationToScrowRepository].executor&quot;: &quot;Run&quot;,
-    &quot;ModuleVcsDetector.initialDetectionPerformed&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.TerminalTabsStorage.copyFrom.TerminalArrangementManager.252&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.git.unshallow&quot;: &quot;true&quot;,
-    &quot;git-widget-placeholder&quot;: &quot;master&quot;,
-    &quot;kotlin-language-version-configured&quot;: &quot;true&quot;,
-    &quot;last_opened_file_path&quot;: &quot;/home/a/src/scrow&quot;,
-    &quot;project.structure.last.edited&quot;: &quot;Project&quot;,
-    &quot;project.structure.proportion&quot;: &quot;0.15&quot;,
-    &quot;project.structure.side.proportion&quot;: &quot;0.6268199&quot;,
-    &quot;settings.editor.selected.configurable&quot;: &quot;preferences.pluginManager&quot;
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "Gradle.Download Sources.executor": "Run",
+    "Gradle.core [build].executor": "Run",
+    "Gradle.core [clean].executor": "Run",
+    "Gradle.core [publishAllPublicationsToScrowRepository].executor": "Run",
+    "Gradle.core [publishCoreLibPublicationToScrowRepository].executor": "Run",
+    "Gradle.core:core-bukkit-api [build].executor": "Run",
+    "Gradle.core:core-bukkit-api [clean].executor": "Run",
+    "Gradle.core:core-lib [publishAllPublicationsToScrowRepository].executor": "Run",
+    "Gradle.core:core-lib [publishCoreLibPublicationToMavenLocal].executor": "Run",
+    "Gradle.core:core-lib [publishCoreLibPublicationToScrowRepository].executor": "Run",
+    "ModuleVcsDetector.initialDetectionPerformed": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "RunOnceActivity.TerminalTabsStorage.copyFrom.TerminalArrangementManager.252": "true",
+    "RunOnceActivity.git.unshallow": "true",
+    "git-widget-placeholder": "master",
+    "kotlin-language-version-configured": "true",
+    "last_opened_file_path": "/home/a/src/scrow",
+    "project.structure.last.edited": "Project",
+    "project.structure.proportion": "0.15",
+    "project.structure.side.proportion": "0.6268199",
+    "settings.editor.selected.configurable": "preferences.pluginManager"
   }
-}</component>
+}]]></component>
   <component name="RecentsManager">
     <key name="CreateClassDialog.RecentsKey">
       <recent name="de.kentoj.scrow.bukkit.economy.command" />
diff --git a/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Task.java b/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Task.java
index 0911d78..8b6ab79 100644
--- a/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Task.java
+++ b/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Task.java
@@ -1,13 +1,15 @@
 package de.kentoj.scrow.bukkit.scheduler;
 
 import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
 import java.util.function.Consumer;
 import java.util.function.Function;
+import java.util.function.Predicate;
 import java.util.function.Supplier;
 
 public interface Task<T> {
 
-    CompletableFuture<T> asFuture();
+    CompletableFuture<T> toFuture();
 
     default Task<?> runSync(Runnable task) {
         return mapSync(__ -> {
@@ -48,4 +50,17 @@ public interface Task<T> {
     }
 
     <S> Task<S> mapAsync(Function<T, S> mapper);
+
+    Task<T> yieldIf(Predicate<T> precondition);
+
+    default T await() {
+        try {
+            return toFuture().get();
+        } catch (InterruptedException e) {
+            Thread.currentThread().interrupt();
+            throw new RuntimeException(e);
+        } catch (ExecutionException e) {
+            throw new RuntimeException(e);
+        }
+    }
 }
diff --git a/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskImpl.java b/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskImpl.java
index f2f0f0f..ebcbb65 100644
--- a/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskImpl.java
+++ b/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskImpl.java
@@ -1,8 +1,10 @@
 package de.kentoj.scrow.bukkit.scheduler;
 
+import com.google.common.base.Preconditions;
 import de.kentoj.scrow.bukkit.ScrowAPI;
 import lombok.AccessLevel;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.bukkit.Bukkit;
 
 import java.util.concurrent.CompletableFuture;
@@ -10,47 +12,85 @@ import java.util.concurrent.ExecutionException;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.function.Function;
+import java.util.function.Predicate;
 import java.util.function.Supplier;
 
+import static com.google.common.base.Preconditions.*;
+
 /**
  * A Task runs entirely async, when sync is used, a subtask is run on the main thread and the async thread
  * blocks until the subtask returns.
  *
  * @param <T> type of computed result
  */
+@Slf4j
 @RequiredArgsConstructor(access = AccessLevel.PACKAGE)
 public class TaskImpl<T> implements Task<T> {
 
     private static final ExecutorService EXECUTOR = Executors.newVirtualThreadPerTaskExecutor();
 
-    private final Supplier<T> compute;
+    private final Supplier<TaskState<T>> compute;
+    private TaskState<T> cachedResult = null;
 
     @Override
-    public CompletableFuture<T> asFuture() {
-        return CompletableFuture.supplyAsync(compute, EXECUTOR);
+    public CompletableFuture<T> toFuture() {
+        return CompletableFuture.supplyAsync(() -> state().getValue(), EXECUTOR);
     }
 
     /**
      * Maps the last result on the main thread
      */
     public <S> Task<S> mapSync(Function<T, S> mapper) {
-        Supplier<S> supplier = () -> {
+        return new TaskImpl<>(() -> {
+            var s = state();
+            if (s.isYielded()) return yielded(s);
+
             try {
-                return Bukkit.getScheduler().callSyncMethod(ScrowAPI.plugin, () -> mapper.apply(compute.get())).get();
+                return TaskState.completed(Bukkit.getScheduler()
+                        .callSyncMethod(ScrowAPI.plugin, () -> mapper.apply(s.getValue()))
+                        .get());
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
                 throw new RuntimeException(e);
             } catch (ExecutionException e) {
                 throw new RuntimeException(e);
             }
-        };
-        return new TaskImpl<>(supplier);
+        });
     }
 
     /**
      * Maps the last result async
      */
     public <S> Task<S> mapAsync(Function<T, S> mapper) {
-        return new TaskImpl<>(() -> mapper.apply(compute.get()));
+        return new TaskImpl<>(() -> {
+            var s = state();
+            if (s.isYielded()) return yielded(s);
+            return TaskState.completed(mapper.apply(state().getValue()));
+        });
+    }
+
+    @Override
+    public Task<T> yieldIf(Predicate<T> precondition) {
+        var s = state();
+        if (!s.isYielded() && precondition.test(s.getValue())) {
+            return new TaskImpl<>(() -> TaskState.yielded(s.getValue()));
+        }
+        return this;
+    }
+
+    @SuppressWarnings("unchecked")
+    private <S> TaskState<S> yielded(TaskState<T> state) {
+        try {
+            return (TaskState<S>) state;
+        } catch (ClassCastException ex) {
+            log.error("cannot yield when type of next task differs", ex);
+            throw ex;
+        }
+    }
+
+    private TaskState<T> state() {
+        if (cachedResult == null)
+            cachedResult = compute.get();
+        return cachedResult;
     }
 }
diff --git a/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskState.java b/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskState.java
new file mode 100644
index 0000000..ef369c5
--- /dev/null
+++ b/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/TaskState.java
@@ -0,0 +1,20 @@
+package de.kentoj.scrow.bukkit.scheduler;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import org.jetbrains.annotations.Nullable;
+
+@Getter
+@RequiredArgsConstructor
+public class TaskState<T> {
+    private final @Nullable T value;
+    private final boolean yielded;
+
+    public static <T> TaskState<T> yielded(@Nullable T value) {
+        return new TaskState<>(value, true);
+    }
+
+    public static <T> TaskState<T> completed(@Nullable T value) {
+        return new TaskState<>(value, false);
+    }
+}
diff --git a/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Tasks.java b/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Tasks.java
index 2c6e40f..61208f8 100644
--- a/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Tasks.java
+++ b/core-bukkit-api/src/main/java/de/kentoj/scrow/bukkit/scheduler/Tasks.java
@@ -5,13 +5,15 @@ import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
 import org.bukkit.Bukkit;
 
+import java.util.Arrays;
+import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
 import java.util.function.Supplier;
 
 @NoArgsConstructor(access = AccessLevel.NONE)
 public class Tasks {
     public static <T> Task<T> supplyAsync(Supplier<T> supplier) {
-        return new TaskImpl<>(supplier);
+        return new TaskImpl<>(() -> TaskState.completed(supplier.get()));
     }
 
     public static Task<?> runAsync(Runnable task) {
@@ -24,7 +26,9 @@ public class Tasks {
     public static <T> Task<T> supplySync(Supplier<T> supplier) {
         return new TaskImpl<>(() -> {
             try {
-                return Bukkit.getScheduler().callSyncMethod(ScrowAPI.plugin, supplier::get).get();
+                return TaskState.completed(Bukkit.getScheduler()
+                        .callSyncMethod(ScrowAPI.plugin, supplier::get)
+                        .get());
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
                 throw new RuntimeException(e);
@@ -40,4 +44,11 @@ public class Tasks {
             return null;
         });
     }
+
+    public static void awaitAll(Task<?>... tasks) {
+        var cfs = Arrays.stream(tasks)
+                .map(Task::toFuture)
+                .toArray(CompletableFuture[]::new);
+        CompletableFuture.allOf(cfs).join();
+    }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsCommand.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsCommand.java
index 0c3da6c..faf9952 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsCommand.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsCommand.java
@@ -8,18 +8,15 @@ import de.kentoj.kencommandapi.api.node.CommandNode;
 import de.kentoj.kencommandapi.api.node.RootCommandNode;
 import de.kentoj.kencommandapi.api.platform.MessageStyle;
 import de.kentoj.scrow.bukkit.ScrowAPI;
-import de.kentoj.scrow.bukkit.ScrowAPISurface;
 import de.kentoj.scrow.bukkit.scheduler.Tasks;
 import de.kentoj.scrowlib.convention.ScrowMessageStyle;
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import net.kyori.adventure.text.format.NamedTextColor;
-import org.bukkit.OfflinePlayer;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
-import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 
 @NoArgsConstructor(access = AccessLevel.NONE)
@@ -50,7 +47,7 @@ public class CoinsCommand implements CommandExecutor<CommandSender> {
                 ScrowAPI.getEconomyService().getCoins(player.getUniqueId()))
                 .<Result<Object, String>>mapSync(amount -> {
                     player.sendMessage(style.ok("You have " + amount + "$"));
-                    return Results.success(Optional.empty());
-                }).asFuture();
+                    return Results.success(new Object());
+                }).toFuture();
     }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsGetLiteral.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsGetLiteral.java
index 16a46ba..3c5dd08 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsGetLiteral.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsGetLiteral.java
@@ -14,7 +14,6 @@ import lombok.Getter;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.command.CommandSender;
 
-import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 
 public class CoinsGetLiteral implements CommandExecutor<CommandSender> {
@@ -43,8 +42,8 @@ public class CoinsGetLiteral implements CommandExecutor<CommandSender> {
                         ScrowAPI.getEconomyService().getCoins(player.getUniqueId()))
                 .<Result<Object, String>>mapSync(amount -> {
                     ctx.getSender().sendMessage(style.ok(player.getName() + " has " + amount + "$"));
-                    return Results.success(Optional.empty());
-                }).asFuture();
+                    return Results.success(new Object());
+                }).toFuture();
     }
 
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsSetLiteral.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsSetLiteral.java
index ea3fff6..316d811 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsSetLiteral.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/economy/command/CoinsSetLiteral.java
@@ -15,7 +15,6 @@ import lombok.Getter;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.command.CommandSender;
 
-import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 
 public class CoinsSetLiteral implements CommandExecutor<CommandSender> {
@@ -47,7 +46,7 @@ public class CoinsSetLiteral implements CommandExecutor<CommandSender> {
                         ScrowAPI.getEconomyService().setCoins(player.getUniqueId(), amount))
                 .<Result<Object, String>>supplySync(() -> {
                     ctx.getSender().sendMessage(style.ok(player.getName() + " now has " + amount + "$"));
-                    return Results.success(Optional.empty());
-                }).asFuture();
+                    return Results.success(new Object());
+                }).toFuture();
     }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendAddLiteral.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendAddLiteral.java
index fe81813..ab5c154 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendAddLiteral.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendAddLiteral.java
@@ -1,106 +1,122 @@
 package de.kentoj.scrow.bukkit.friends.command;
 
-import de.kentoj.kencommandapi.api.node.CommandNode;
+import com.leakyabstractions.result.api.Result;
+import com.leakyabstractions.result.core.Results;
 import de.kentoj.kencommandapi.api.argument.CommandArgument;
 import de.kentoj.kencommandapi.api.invocation.CommandContext;
 import de.kentoj.kencommandapi.api.invocation.CommandExecutor;
-import com.leakyabstractions.result.api.Result;
-import com.leakyabstractions.result.api.Results;
+import de.kentoj.kencommandapi.api.node.CommandNode;
 import de.kentoj.kencommandapi.type.OfflinePlayerArgumentType;
 import de.kentoj.scrow.bukkit.ScrowAPI;
 import de.kentoj.scrow.bukkit.friends.friendship.FriendshipImpl;
 import de.kentoj.scrow.bukkit.friends.request.FriendRequestImpl;
+import de.kentoj.scrow.bukkit.scheduler.Task;
+import de.kentoj.scrow.bukkit.scheduler.Tasks;
+import de.kentoj.scrowlib.convention.ScrowMessageStyle;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
-import org.jetbrains.annotations.NotNull;
-import reactor.core.publisher.Mono;
 
 import java.time.Instant;
+import java.util.Objects;
+import java.util.UUID;
 import java.util.concurrent.CompletableFuture;
 
 @RequiredArgsConstructor
 public class FriendAddLiteral implements CommandExecutor<CommandSender> {
 
     @Getter
-    private final CommandNode<CommandSender> rootNode;
+    private final CommandNode<CommandSender> literal;
     private final CommandArgument<CommandSender, OfflinePlayer> playerArg;
+    private final ScrowMessageStyle style;
 
-    public FriendAddLiteral() {
+    public FriendAddLiteral(ScrowMessageStyle style) {
+        this.style = style;
         playerArg = CommandArgument.arg("player", OfflinePlayerArgumentType.getInstance());
-        rootNode = CommandNode.node("add");
-        rootNode.addArgument(playerArg);
-        rootNode.setExecutor(this);
+        literal = CommandNode.node("add");
+        literal.addArgument(playerArg);
+        literal.setExecutor(this);
     }
 
     @Override
-    public CompletableFuture<Result<Object,String>> execute(CommandContext<CommandSender> ctx) {
+    public CompletableFuture<Result<Object, String>> execute(CommandContext<CommandSender> ctx) {
         var self = (Player) ctx.getSender();
         var other = ctx.getArg(playerArg);
-        return findAction(self, other)
-                .flatMap(action -> executeAction(self, other, action))
-                .toFuture();
+        return Tasks.supplyAsync(() -> findAction(self, other)
+                .mapSuccess(action -> {
+                    if (action == AddAction.SEND_REQUEST) sendRequest(self, other);
+                    else if (action == AddAction.ACCEPT_REQUEST) acceptRequest(self, other);
+                    return new Object();
+                })
+        ).toFuture();
     }
 
-    private Mono<@NotNull Result> executeAction(Player self, OfflinePlayer other, AddAction action) {
-        return switch (action) {
-            case ERR_CAN_NOT_ADD_SELF -> Mono.just(Result.error("You can not add yourself"));
-            case ERR_ALREADY_FRIENDS -> Mono.just(Result.error("You are already friends with " + other.getName()));
-            case ERR_ALREADY_REQUESTED ->
-                    Mono.just(Result.error("You already requested " + other.getName() + " to be friends with you"));
-            case SEND_REQUEST -> sendRequest(self, other);
-            case ACCEPT_REQUEST -> acceptRequest(self, other);
-        };
-    }
-
-    private Mono<@NotNull Result> sendRequest(Player self, OfflinePlayer other) {
-        return ScrowAPI.getFriendRequestService().saveFriendRequest(new FriendRequestImpl(self.getUniqueId(), other.getUniqueId(), Instant.now()))
-                .map(success -> {
-                    if (!success) return Result.error("You already sent " + other.getName() + " a friend request");
-
-                    self.sendMessage("Successfully sent " + other.getName() + " a friend request.");
+    private void sendRequest(Player self, OfflinePlayer other) {
+        Tasks.runAsync(() -> ScrowAPI.getFriendRequestService()
+                        .saveFriendRequest(new FriendRequestImpl(self.getUniqueId(), other.getUniqueId())))
+                .runSync(() -> {
+                    self.sendMessage(style.ok("Successfully sent " + other.getName() + " a friend request."));
                     var otherPlayer = other.getPlayer();
                     if (otherPlayer != null)
-                        otherPlayer.sendMessage(" wants to be friends with you. Use '/f add " + self.getName() + "' to accept.");
-                    return Result.success();
+                        otherPlayer.sendMessage(style.ok(" wants to be friends with you. Use '/f add " + self.getName() + "' to accept."));
                 });
     }
 
-    private Mono<@NotNull Result> acceptRequest(Player self, OfflinePlayer other) {
-        return Mono.when(
-                        ScrowAPI.getFriendRequestService().deleteFriendRequest(self.getUniqueId(), other.getUniqueId()),
-                        ScrowAPI.getFriendRequestService().deleteFriendRequest(other.getUniqueId(), self.getUniqueId()),
-                        ScrowAPI.getFriendshipService().saveFriendship(new FriendshipImpl(self.getUniqueId(), other.getUniqueId(), Instant.now()))
-                )
-                .doOnNext(__ -> {
-                    self.sendMessage("You are now friends with " + other.getName());
+    private void acceptRequest(Player self, OfflinePlayer other) {
+        Tasks.runAsync(() -> Tasks.awaitAll(
+                        Tasks.runAsync(() -> ScrowAPI.getFriendRequestService()
+                                .deleteFriendRequest(self.getUniqueId(), other.getUniqueId())),
+                        Tasks.runAsync(() -> ScrowAPI.getFriendRequestService()
+                                .deleteFriendRequest(other.getUniqueId(), self.getUniqueId())),
+                        Tasks.runAsync(() -> ScrowAPI.getFriendshipService()
+                                .saveFriendship(new FriendshipImpl(self.getUniqueId(), other.getUniqueId(), Instant.now()))
+                        )))
+                .runSync(() -> {
+                    self.sendMessage(style.ok("You are now friends with " + other.getName()));
                     if (other.getPlayer() != null)
-                        other.getPlayer().sendMessage("You are now friends with " + self.getName());
-                })
-                .then(Mono.just(Result.success()));
+                        other.getPlayer().sendMessage(style.ok("You are now friends with " + self.getName()));
+                });
     }
 
-    private Mono<@NotNull AddAction> findAction(Player self, OfflinePlayer other) {
-        if (self.getUniqueId() == other.getUniqueId()) return Mono.just(AddAction.ERR_CAN_NOT_ADD_SELF);
-        return ScrowAPI.getFriendshipService().getFriendship(self.getUniqueId(), other.getUniqueId())
-                .map(f -> AddAction.ERR_ALREADY_FRIENDS)
-                .switchIfEmpty(
-                        ScrowAPI.getFriendRequestService().getFriendRequest(self.getUniqueId(), other.getUniqueId())
-                                .map(r -> AddAction.ERR_ALREADY_REQUESTED)
-                                .switchIfEmpty(
-                                        ScrowAPI.getFriendRequestService().getFriendRequest(other.getUniqueId(), self.getUniqueId())
-                                                .map(r -> AddAction.ACCEPT_REQUEST)
-                                                .switchIfEmpty(Mono.just(AddAction.SEND_REQUEST))
-                                )
-                );
+    private Result<AddAction, String> findAction(Player self, OfflinePlayer other) {
+        if (self.getUniqueId() == other.getUniqueId())
+            return Results.failure("You cannot add yourself.");
+
+        var isAlreadyFriendTask = checkAlreadyFriends(self, other);
+        var isAlreadySent = checkAlreadySent(self.getUniqueId(), other.getUniqueId());
+        var isShouldAccept = checkShouldAccept(self, other);
+        Tasks.awaitAll(isAlreadyFriendTask, isAlreadyFriendTask, isShouldAccept);
+
+        if (isAlreadyFriendTask.await())
+            return Results.failure("You are already friends with " + other.getName() + ".");
+        if (isAlreadySent.await())
+            return Results.failure("You've already sent " + other + " a friend request.");
+        if (isShouldAccept.await())
+            return Results.success(AddAction.ACCEPT_REQUEST);
+        return Results.success(AddAction.SEND_REQUEST);
+    }
+
+    private static Task<Boolean> checkShouldAccept(Player self, OfflinePlayer other) {
+        return Tasks.supplyAsync(() ->
+                        ScrowAPI.getFriendRequestService().getFriendRequest(other.getUniqueId(), self.getUniqueId()))
+                .mapSync(Objects::nonNull);
+    }
+
+    private static Task<Boolean> checkAlreadyFriends(Player self, OfflinePlayer other) {
+        return Tasks.supplyAsync(() ->
+                        ScrowAPI.getFriendshipService().getFriendship(self.getUniqueId(), other.getUniqueId()))
+                .mapSync(Objects::nonNull);
+    }
+
+    private static Task<Boolean> checkAlreadySent(UUID self, UUID other) {
+        return Tasks.supplyAsync(() ->
+                        ScrowAPI.getFriendRequestService().getFriendRequest(self, other))
+                .mapSync(Objects::nonNull);
     }
 
     private enum AddAction {
-        ERR_ALREADY_FRIENDS,
-        ERR_ALREADY_REQUESTED,
-        ERR_CAN_NOT_ADD_SELF,
         SEND_REQUEST,
         ACCEPT_REQUEST
     }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendCommand.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendCommand.java
index fef5ac2..ffca644 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendCommand.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendCommand.java
@@ -12,10 +12,10 @@ import org.bukkit.command.CommandSender;
 public class FriendCommand {
     public static RootCommandNode<CommandSender> create() {
         var style = new ScrowMessageStyle("Friends", NamedTextColor.GREEN);
-        var rootNode = CommandNode.rootNode(style, "f", "friend");
-        rootNode.addLiteral(new FriendListLiteral(style).getRootNode());
-        rootNode.addLiteral(new FriendAddLiteral(style).getRootNode());
+        RootCommandNode<CommandSender> rootNode = CommandNode.rootNode(style, "f", "friend");
+        rootNode.addLiteral(new FriendListLiteral(style).getLiteral());
+        rootNode.addLiteral(new FriendAddLiteral(style).getLiteral());
         rootNode.addLiteral(new FriendRemoveLiteral(style).getRootNode());
-        rootNode.addLiteral(new FriendRequestsLiteral(style).getRootNode());
+        rootNode.addLiteral(new FriendRequestsLiteral(style).getLiteral());
     }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendListLiteral.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendListLiteral.java
index c4bc6cc..af26f57 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendListLiteral.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendListLiteral.java
@@ -5,58 +5,51 @@ import com.leakyabstractions.result.core.Results;
 import de.kentoj.kencommandapi.api.invocation.CommandContext;
 import de.kentoj.kencommandapi.api.invocation.CommandExecutor;
 import de.kentoj.kencommandapi.api.node.CommandNode;
-import de.kentoj.kencommandapi.api.platform.MessageStyle;
 import de.kentoj.scrow.bukkit.ScrowAPI;
+import de.kentoj.scrow.bukkit.scheduler.Tasks;
+import de.kentoj.scrowlib.convention.ScrowMessageStyle;
 import lombok.Getter;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.minimessage.MiniMessage;
 import org.bukkit.Bukkit;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
+import java.util.List;
 import java.util.concurrent.CompletableFuture;
 
+import static java.util.Objects.*;
+import static net.kyori.adventure.text.Component.text;
+
 public class FriendListLiteral implements CommandExecutor<CommandSender> {
 
     @Getter
-    private final CommandNode<CommandSender> rootNode;
-    private final MessageStyle style;
+    private final CommandNode<CommandSender> literal;
+    private final ScrowMessageStyle style;
 
-    public FriendListLiteral(MessageStyle style) {
+    public FriendListLiteral(ScrowMessageStyle style) {
         this.style = style;
-        this.rootNode = CommandNode.node("list");
-        rootNode.setExecutor(this);
+        this.literal = CommandNode.node("list");
+        literal.setExecutor(this);
     }
 
     @Override
     public CompletableFuture<Result<Object, String>> execute(CommandContext<CommandSender> ctx) {
         var sender = (Player) ctx.getSender();
-        var ownUid = sender.getUniqueId();
-        return CompletableFuture.supplyAsync(() ->
-                        ScrowAPI.getFriendshipService().getFriendships(ownUid))
-                .thenApply(friendships -> ScrowAPI.getScheduler().sync(() -> {
-                    var list = friendships.stream()
-                            .map(friendship -> Bukkit.getOfflinePlayer(friendship.getUuids().getOther(ownUid)))
+        return Tasks.supplyAsync(() ->
+                        ScrowAPI.getFriendshipService().getFriendships(sender.getUniqueId()))
+                .<Result<Object, String>>mapSync(friendships -> {
+                    var friends = friendships.stream()
+                            .map(friendship -> Bukkit.getOfflinePlayer(friendship.getUuids().getOther(sender.getUniqueId())))
                             .sorted(this::compareByOnlineStatus)
                             .toList();
-                    if (list.isEmpty()) return Results.failure("You have no friends. Use /friend add <player>");
+                    if (friends.isEmpty()) return Results.failure("You have no friends. Use /friend add <player>");
 
-                    var message = "§7You have §3" + list.size() + "§7" + ("§" +
-                            .append(Component.text(list.size() == 1 ? " friend:" : " friends:"));
-                    for (var friend : list) {
-                        message = message.appendNewline();
-                        var status = Component.text("(").append(
-                                        friend.isOnline()
-                                                ? Component.text("online").color(NamedTextColor.GRAY)
-                                                : Component.text("offline").color(NamedTextColor.RED))
-                                .append(Component.text(")"));
-                        message = message.append(Component.text("≫").color(NamedTextColor.AQUA));
-                    }
-
-                    sender.sendMessage(msg);
-                    return Result.success();
-                });
+                    sender.sendMessage(formatList(friends));
+                    return Results.success(new Object());
+                }).toFuture();
     }
 
     private int compareByOnlineStatus(OfflinePlayer p1, OfflinePlayer p2) {
@@ -64,4 +57,20 @@ public class FriendListLiteral implements CommandExecutor<CommandSender> {
         if (!p1.isOnline() && p2.isOnline()) return -1;
         return 0;
     }
+
+    private Component formatList(List<OfflinePlayer> friends) {
+        var message = style.ok(MiniMessage.miniMessage().deserialize("Your friends:"));
+        for (var friend : friends) {
+            var status = text("(").append(friend.isOnline()
+                            ? text("online").color(NamedTextColor.GRAY)
+                            : text("offline").color(NamedTextColor.RED))
+                    .append(text(")"));
+            message = message
+                    .appendNewline()
+                    .append(text("≫").color(NamedTextColor.AQUA))
+                    .append(text(requireNonNull(friend.getName())))
+                    .append(status);
+        }
+        return message;
+    }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRemoveLiteral.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRemoveLiteral.java
index 42a1ce9..8b3d0b0 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRemoveLiteral.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRemoveLiteral.java
@@ -9,22 +9,22 @@ import de.kentoj.kencommandapi.api.node.CommandNode;
 import de.kentoj.kencommandapi.type.OfflinePlayerArgumentType;
 import de.kentoj.scrow.bukkit.ScrowAPI;
 import de.kentoj.scrow.bukkit.scheduler.Tasks;
+import de.kentoj.scrowlib.convention.ScrowMessageStyle;
 import lombok.Getter;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
-import java.util.Optional;
 import java.util.concurrent.CompletableFuture;
 
 public class FriendRemoveLiteral implements CommandExecutor<CommandSender> {
     @Getter
     private final CommandNode<CommandSender> rootNode;
     private final CommandArgument<CommandSender, OfflinePlayer> playerArg;
+    private final ScrowMessageStyle style;
 
-    private final Scheduler scheduler = ScrowAPI.getScheduler();
-
-    public FriendRemoveLiteral() {
+    public FriendRemoveLiteral(ScrowMessageStyle style) {
+        this.style = style;
         this.playerArg = CommandArgument.arg("player", OfflinePlayerArgumentType.getInstance());
         this.rootNode = CommandNode.node("remove");
         this.rootNode.addArgument(playerArg);
@@ -40,8 +40,8 @@ public class FriendRemoveLiteral implements CommandExecutor<CommandSender> {
                 .<Result<Object, String>>mapSync(deleted -> {
                     if (!deleted)
                         return Results.failure("You are not friends with " + friend.getName());
-                    ctx.getSender().sendMessage("You have ended the friendship with " + friend.getName());
-                    return Results.success(Optional.empty());
-                }).asFuture();
+                    ctx.getSender().sendMessage(style.ok("You have ended the friendship with " + friend.getName()));
+                    return Results.success(new Object());
+                }).toFuture();
     }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRequestsLiteral.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRequestsLiteral.java
index 9d49136..0eb2602 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRequestsLiteral.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/command/FriendRequestsLiteral.java
@@ -1,45 +1,65 @@
 package de.kentoj.scrow.bukkit.friends.command;
 
-import de.kentoj.kencommandapi.api.node.CommandNode;
+import com.leakyabstractions.result.api.Result;
+import com.leakyabstractions.result.core.Results;
 import de.kentoj.kencommandapi.api.invocation.CommandContext;
 import de.kentoj.kencommandapi.api.invocation.CommandExecutor;
-import com.leakyabstractions.result.api.Result;
-import com.leakyabstractions.result.api.Results;
+import de.kentoj.kencommandapi.api.node.CommandNode;
 import de.kentoj.scrow.bukkit.ScrowAPI;
 import de.kentoj.scrow.bukkit.friends.FriendRequest;
+import de.kentoj.scrow.bukkit.scheduler.Tasks;
+import de.kentoj.scrowlib.convention.ScrowMessageStyle;
 import lombok.Getter;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.minimessage.MiniMessage;
+import org.bukkit.Bukkit;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
+import java.util.List;
 import java.util.concurrent.CompletableFuture;
 
+import static net.kyori.adventure.text.Component.text;
+
 public class FriendRequestsLiteral implements CommandExecutor<CommandSender> {
 
     @Getter
-    private final CommandNode<CommandSender> rootNode;
+    private final CommandNode<CommandSender> literal;
+    private final ScrowMessageStyle style;
 
-    public FriendRequestsLiteral() {
-        this.rootNode = CommandNode.node("requests", "list-requests");
-        rootNode.setExecutor(this);
+    public FriendRequestsLiteral(ScrowMessageStyle style) {
+        this.style = style;
+        literal = CommandNode.node("requests", "list-requests");
+        literal.setExecutor(this);
     }
 
     @Override
-    public CompletableFuture<Result<Object,String>> execute(CommandContext<CommandSender> ctx) {
+    public CompletableFuture<Result<Object, String>> execute(CommandContext<CommandSender> ctx) {
         var sender = (Player) ctx.getSender();
-        return ScrowAPI.getFriendRequestService().getFriendRequestsTo(sender.getUniqueId())
-                .collectList()
-                .map(list -> {
-                    if (list.isEmpty()) return Result.error("You have no friend requests");
+        return Tasks.supplyAsync(() ->
+                        ScrowAPI.getFriendRequestService().getFriendRequestsTo(sender.getUniqueId()))
+                .<Result<Object, String>>mapAsync(list -> {
+                    if (list.isEmpty()) return Results.failure("You have no friend requests");
+                    var requesters = list.stream().sorted(this::compareByAge).map(fr -> Bukkit.getOfflinePlayer(fr.getFrom()).getName());
 
-                    var msg = "§3§lFriends§r§7 ☆ You have §3" + list.size() + "§7 open friend request";
-                    if (list.size() > 1) msg += "s";
-                    msg += ":§r\n";
-                    for (FriendRequest friendRequest : list) {
-                        msg += "§c≫ §7" + friendRequest.getFrom() + "\n";
-                    }
-
-                    sender.sendMessage(msg);
-                    return Result.success();
+                    sender.sendMessage(formatList(requesters.toList()));
+                    return Results.success(new Object());
                 }).toFuture();
     }
+
+    private int compareByAge(FriendRequest a, FriendRequest b) {
+        return a.getCreatedAt().isAfter(b.getCreatedAt()) ? 1 : -1;
+    }
+
+    private Component formatList(List<String> requesters) {
+        var message = style.ok(MiniMessage.miniMessage().deserialize("Open friend requests:"));
+        for (String requester : requesters) {
+            message = message
+                    .appendNewline()
+                    .append(text("≫").color(NamedTextColor.AQUA))
+                    .append(Component.text(requester));
+        }
+        return message;
+    }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/InMemoryFriendshipService.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/InMemoryFriendshipService.java
index 7e7b9cc..736a9b0 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/InMemoryFriendshipService.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/InMemoryFriendshipService.java
@@ -1,7 +1,5 @@
 package de.kentoj.scrow.bukkit.friends.friendship;
 
-import com.leakyabstractions.result.api.Result;
-import com.leakyabstractions.result.core.Results;
 import de.kentoj.scrow.bukkit.friends.Friendship;
 import de.kentoj.scrow.bukkit.friends.FriendshipService;
 import de.kentoj.scrow.bukkit.friends.OrderedUUIDPair;
@@ -16,27 +14,27 @@ public class InMemoryFriendshipService implements FriendshipService {
     private final Map<OrderedUUIDPair, Friendship> friendships = new HashMap<>();
 
     @Override
-    public Result<Friendship, String> getFriendship(UUID uuid1, UUID uuid2) {
-        return Results.success(friendships.get(new OrderedUUIDPair(uuid1, uuid2)));
+    public Friendship getFriendship(UUID uuid1, UUID uuid2) {
+        return friendships.get(new OrderedUUIDPair(uuid1, uuid2));
     }
 
     @Override
-    public Result<List<Friendship>, String> getFriendships(UUID playerId) {
-        return Results.success(friendships.entrySet().stream()
+    public List<Friendship> getFriendships(UUID playerId) {
+        return friendships.entrySet().stream()
                 .filter(ent ->
                         ent.getKey().getFirst().equals(playerId) || ent.getKey().getSecond().equals(playerId)
                 )
                 .map(Map.Entry::getValue)
-                .toList());
+                .toList();
     }
 
     @Override
-    public Result<Boolean, String> saveFriendship(Friendship friendship) {
-        return Results.success(friendships.putIfAbsent(friendship.getUuids(), friendship) == null);
+    public boolean saveFriendship(Friendship friendship) {
+        return friendships.putIfAbsent(friendship.getUuids(), friendship) == null;
     }
 
     @Override
-    public Result<Boolean, String> deleteFriendship(UUID uuid1, UUID uuid2) {
-        return Results.success(friendships.remove(new OrderedUUIDPair(uuid1, uuid2)) != null);
+    public boolean deleteFriendship(UUID uuid1, UUID uuid2) {
+        return friendships.remove(new OrderedUUIDPair(uuid1, uuid2)) != null;
     }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/PostgresFriendshipService.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/PostgresFriendshipService.java
index ce5f3f2..9d512b9 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/PostgresFriendshipService.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/friendship/PostgresFriendshipService.java
@@ -1,23 +1,31 @@
 package de.kentoj.scrow.bukkit.friends.friendship;
 
+import de.kentoj.scrow.bukkit.ScrowAPI;
+import de.kentoj.scrow.bukkit.friends.FriendRequest;
 import de.kentoj.scrow.bukkit.friends.Friendship;
 import de.kentoj.scrow.bukkit.friends.FriendshipService;
 import de.kentoj.scrow.bukkit.friends.OrderedUUIDPair;
-import de.kentoj.scrowlib.connection.DatabaseConnectionFactory;
-import org.jetbrains.annotations.NotNull;
-import reactor.core.publisher.Flux;
-import reactor.core.publisher.Mono;
+import de.kentoj.scrow.bukkit.friends.request.FriendRequestImpl;
+import org.jdbi.v3.core.Jdbi;
+import org.jdbi.v3.core.statement.StatementContext;
+import org.jetbrains.annotations.Nullable;
 
+import java.sql.ResultSet;
+import java.sql.SQLException;
 import java.time.Instant;
+import java.util.List;
 import java.util.UUID;
 
+import static com.google.common.base.Preconditions.checkNotNull;
+
 public class PostgresFriendshipService implements FriendshipService {
 
-    private final DatabaseConnectionFactory dbConFactory;
+    private final Jdbi jdbi;
 
-    public PostgresFriendshipService(DatabaseConnectionFactory dbConFactory) {
-        this.dbConFactory = dbConFactory;
-        this.dbConFactory.create().sql("""
+    public PostgresFriendshipService() {
+        checkNotNull(ScrowAPI.getJdbi());
+        jdbi = ScrowAPI.getJdbi();
+        jdbi.useHandle(h -> h.execute("""
                 CREATE TABLE IF NOT EXISTS friendships (
                     first_uuid  UUID        NOT NULL,
                     second_uuid UUID        NOT NULL,
@@ -26,47 +34,39 @@ public class PostgresFriendshipService implements FriendshipService {
                     CONSTRAINT friendship_no_self_friendship
                         CHECK (first_uuid <> second_uuid)
                 )
-                """).then().block();
+                """));
     }
 
     @Override
-    public Result<Friendship, String> getFriendship(UUID uuid1, UUID uuid2) {
+    public @Nullable Friendship getFriendship(UUID uuid1, UUID uuid2) {
         var uuids = new OrderedUUIDPair(uuid1, uuid2);
 
-        return dbConFactory.create().sql("""
+        return jdbi.withHandle(h -> h.createQuery("""
                         SELECT first_uuid, second_uuid, created_at
                         FROM friendships
                         WHERE first_uuid = :first AND second_uuid = :second
                         """)
                 .bind("first", uuids.getFirst())
                 .bind("second", uuids.getSecond())
-                .map(row -> (Friendship) new FriendshipImpl(
-                        row.get("first_uuid", UUID.class),
-                        row.get("second_uuid", UUID.class),
-                        row.get("created_at", Instant.class)
-                ))
-                .one();
+                .map(this::parseFriendship)
+                .findFirst().orElse(null));
     }
 
     @Override
-    public Result<List<Friendship>, String> getFriendships(UUID playerId) {
-        return dbConFactory.create().sql("""
+    public List<Friendship> getFriendships(UUID playerId) {
+        return jdbi.withHandle(h -> h.createQuery("""
                         SELECT first_uuid, second_uuid, created_at
                         FROM friendships
                         WHERE first_uuid = :playerId OR second_uuid = :playerId
                         """)
                 .bind("playerId", playerId)
-                .map((row, meta) -> (Friendship) new FriendshipImpl(
-                        row.get("first_uuid", UUID.class),
-                        row.get("second_uuid", UUID.class),
-                        row.get("created_at", Instant.class)
-                ))
-                .all();
+                .map(this::parseFriendship)
+                .list());
     }
 
     @Override
-    public Result<Boolean, String> saveFriendship(Friendship friendship) {
-        return dbConFactory.create().sql("""
+    public boolean saveFriendship(Friendship friendship) {
+        return jdbi.withHandle(h -> h.createUpdate("""
                         INSERT INTO friendships (first_uuid, second_uuid, created_at)
                         VALUES (:first, :second, :createdAt)
                         ON CONFLICT (first_uuid, second_uuid) DO NOTHING
@@ -74,23 +74,26 @@ public class PostgresFriendshipService implements FriendshipService {
                 .bind("first", friendship.getUuids().getFirst())
                 .bind("second", friendship.getUuids().getSecond())
                 .bind("createdAt", friendship.getCreatedAt())
-                .fetch()
-                .rowsUpdated()
-                .map(rows -> rows > 0);
+                .execute() > 0);
     }
 
     @Override
-    public Result<Boolean, String> deleteFriendship(UUID uuid1, UUID uuid2) {
+    public boolean deleteFriendship(UUID uuid1, UUID uuid2) {
         var uuids = new OrderedUUIDPair(uuid1, uuid2);
-
-        return dbConFactory.create().sql("""
+        return jdbi.withHandle(h -> h.createUpdate("""
                         DELETE FROM friendships
                         WHERE first_uuid = :first AND second_uuid = :second
                         """)
                 .bind("first", uuids.getFirst())
                 .bind("second", uuids.getSecond())
-                .fetch()
-                .rowsUpdated()
-                .map(rows -> rows > 0);
+                .execute() > 0);
+    }
+
+    private Friendship parseFriendship(ResultSet rs, StatementContext __) throws SQLException {
+        return new FriendshipImpl(
+                rs.getObject("first_uuid", UUID.class),
+                rs.getObject("second_uuid", UUID.class),
+                rs.getObject("created_at", Instant.class)
+        );
     }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/FriendRequestImpl.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/FriendRequestImpl.java
index cec7f44..802eb0d 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/FriendRequestImpl.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/FriendRequestImpl.java
@@ -1,14 +1,20 @@
 package de.kentoj.scrow.bukkit.friends.request;
 
 import de.kentoj.scrow.bukkit.friends.FriendRequest;
+import lombok.AllArgsConstructor;
 import lombok.Value;
 
 import java.time.Instant;
 import java.util.UUID;
 
 @Value
+@AllArgsConstructor
 public class FriendRequestImpl implements FriendRequest {
     UUID from;
     UUID to;
     Instant createdAt;
+
+    public FriendRequestImpl(UUID from, UUID to) {
+        this(from, to, Instant.now());
+    }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/PostgresFriendRequestService.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/PostgresFriendRequestService.java
index 157db13..aab0732 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/PostgresFriendRequestService.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/friends/request/PostgresFriendRequestService.java
@@ -1,24 +1,30 @@
 package de.kentoj.scrow.bukkit.friends.request;
 
+import de.kentoj.scrow.bukkit.ScrowAPI;
 import de.kentoj.scrow.bukkit.friends.FriendRequest;
 import de.kentoj.scrow.bukkit.friends.FriendRequestService;
-import de.kentoj.scrowlib.connection.DatabaseConnectionFactory;
-import io.r2dbc.spi.Readable;
-import org.jetbrains.annotations.NotNull;
-import org.springframework.r2dbc.core.DatabaseClient;
-import reactor.core.publisher.Flux;
-import reactor.core.publisher.Mono;
+import org.jdbi.v3.core.Jdbi;
+import org.jdbi.v3.core.statement.StatementContext;
+import org.jetbrains.annotations.Nullable;
 
+import javax.swing.tree.RowMapper;
+import java.sql.ResultSet;
+import java.sql.SQLException;
 import java.time.Instant;
+import java.util.List;
 import java.util.UUID;
 
+import static com.google.common.base.Preconditions.checkNotNull;
+
 public class PostgresFriendRequestService implements FriendRequestService {
 
-    private final DatabaseConnectionFactory conFactory;
+    private final Jdbi jdbi;
 
-    public PostgresFriendRequestService(DatabaseConnectionFactory conFactory) {
-        this.conFactory = conFactory;
-        conFactory.create().sql("""
+    public PostgresFriendRequestService() {
+        checkNotNull(ScrowAPI.getJdbi());
+        jdbi = ScrowAPI.getJdbi();
+
+        jdbi.useHandle(h -> h.execute("""
                 CREATE TABLE IF NOT EXISTS friend-requests (
                     from_uuid UUID NOT NULL,
                     to_uuid UUID NOT NULL,
@@ -27,12 +33,12 @@ public class PostgresFriendRequestService implements FriendRequestService {
                     CONSTRAINT friendship_no_self_friendship
                         CHECK (first_uuid <> second_uuid)
                 )
-                """).then().block();
+                """));
     }
 
     @Override
-    public Result<FriendRequest, String> getFriendRequest(UUID from, UUID to) {
-        return conFactory.create().sql("""
+    public @Nullable FriendRequest getFriendRequest(UUID from, UUID to) {
+        return jdbi.withHandle(h -> h.createQuery("""
                         SELECT *
                         FROM friend-requests
                         WHERE from_uuid = :from AND to_uuid = :to
@@ -40,65 +46,62 @@ public class PostgresFriendRequestService implements FriendRequestService {
                 .bind("from", from)
                 .bind("to", to)
                 .map(this::parseFriendRequest)
-                .one();
+                .findFirst()
+                .orElse(null));
     }
 
     @Override
-    public Result<Boolean, String> saveFriendRequest(FriendRequest friendRequest) {
-        return conFactory.create().sql("""
+    public boolean saveFriendRequest(FriendRequest friendRequest) {
+        return jdbi.withHandle(h -> h.createUpdate("""
                         INSERT INTO friend-requests (from_uuid, to_uuid, created_at)
                         VALUES (:from, :to, :created_at)
                         """)
                 .bind("from", friendRequest.getFrom())
                 .bind("to", friendRequest.getTo())
-                .fetch()
-                .rowsUpdated()
-                .map(cnt -> cnt > 0);
+                .execute() > 0);
     }
 
     @Override
-    public Result<List<FriendRequest>, String> getFriendRequestsTo(UUID playerId) {
-        return conFactory.create().sql("""
+    public List<FriendRequest> getFriendRequestsTo(UUID playerId) {
+        return jdbi.withHandle(h -> h.createQuery("""
                         SELECT *
                         FROM friend-requests
                         WHERE to_uuid = :to
                         """)
                 .bind("to", playerId)
                 .map(this::parseFriendRequest)
-                .all();
+                .collectIntoList());
     }
 
     @Override
-    public Result<List<FriendRequest>, String> getFriendRequestsFrom(UUID playerId) {
-        return conFactory.create().sql("""
+    public List<FriendRequest> getFriendRequestsFrom(UUID playerId) {
+        return jdbi.withHandle(h -> h.createQuery("""
                         SELECT *
                         FROM friend-requests
                         WHERE from_uuid = :from
                         """)
                 .bind("from", playerId)
                 .map(this::parseFriendRequest)
-                .all();
+                .collectIntoList());
     }
 
     @Override
-    public Result<Boolean, String> deleteFriendRequest(UUID from, UUID to) {
-        return conFactory.create().sql("""
+    public boolean deleteFriendRequest(UUID from, UUID to) {
+        return jdbi.withHandle(h -> h.createUpdate("""
                         DELETE
                         FROM friend-requests
                         WHERE from_uuid = :from AND to_uuid = :to
                         """)
                 .bind("from", from)
                 .bind("to", to)
-                .fetch()
-                .rowsUpdated()
-                .map(deleted -> deleted > 0);
+                .execute() > 0);
     }
 
-    private FriendRequest parseFriendRequest(Readable row) {
+    private FriendRequest parseFriendRequest(ResultSet rs, StatementContext __) throws SQLException {
         return new FriendRequestImpl(
-                row.get("from_uuid", UUID.class),
-                row.get("to_uuid", UUID.class),
-                row.get("created_at", Instant.class)
+                rs.getObject("from_uuid", UUID.class),
+                rs.getObject("to_uuid", UUID.class),
+                rs.getObject("created_at", Instant.class)
         );
     }
 }
\ No newline at end of file
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/LobbyCommand.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/LobbyCommand.java
index dd94b67..b3fb32d 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/LobbyCommand.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/LobbyCommand.java
@@ -24,6 +24,6 @@ public class LobbyCommand implements CommandExecutor<CommandSender> {
     @Override
     public CompletableFuture<Result<Object, String>> execute(CommandContext<CommandSender> ctx) {
         Bukkit.dispatchCommand(ctx.getSender(), "play lobby");
-        return CompletableFuture.completedFuture(Results.success(null));
+        return CompletableFuture.completedFuture(Results.success(new Object()));
     }
 }
diff --git a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/PlayCommand.java b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/PlayCommand.java
index 8466bb3..4e3e40a 100644
--- a/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/PlayCommand.java
+++ b/core-bukkit-impl/src/main/java/de/kentoj/scrow/bukkit/server/PlayCommand.java
@@ -8,6 +8,7 @@ import de.kentoj.kencommandapi.api.invocation.CommandContext;
 import de.kentoj.kencommandapi.api.invocation.CommandExecutor;
 import de.kentoj.kencommandapi.api.node.CommandNode;
 import de.kentoj.scrow.bukkit.ScrowAPI;
+import de.kentoj.scrow.bukkit.scheduler.Tasks;
 import lombok.Getter;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
@@ -31,8 +32,8 @@ public class PlayCommand implements CommandExecutor<CommandSender> {
     public CompletableFuture<Result<Object, String>> execute(CommandContext<CommandSender> ctx) {
         var gamemode = ctx.getArg(gamemodeArg);
         var player = (Player) ctx.getSender();
-        return CompletableFuture.supplyAsync(() -> ScrowAPI.getInstanceManager().getInstances()
-                .flatMapSuccess(instances -> {
+        return Tasks.supplyAsync(() -> ScrowAPI.getInstanceManager().getInstances()
+                .mapSuccess(instances -> {
                     var instance = instances.stream()
                             .filter(inst -> inst.getTemplate().equals(gamemode))
                             .findFirst()
diff --git a/core-lib/src/main/java/de/kentoj/scrowlib/servermanager/InstanceManager.java b/core-lib/src/main/java/de/kentoj/scrowlib/servermanager/InstanceManager.java
index 4a8611e..551b461 100644
--- a/core-lib/src/main/java/de/kentoj/scrowlib/servermanager/InstanceManager.java
+++ b/core-lib/src/main/java/de/kentoj/scrowlib/servermanager/InstanceManager.java
@@ -1,23 +1,23 @@
 package de.kentoj.scrowlib.servermanager;
 
-import com.leakyabstractions.result.api.Result;
 import org.jspecify.annotations.Nullable;
 
 import java.util.List;
 
 public interface InstanceManager {
 
-    /**
-     * @return Mono with handle of deployed server
-     */
-    Result<ServerInstance, String> deployInstance(String template);
+    ServerInstance deployInstance(String template);
 
-    Result<Object, String> destroyInstance(String handle);
+    /**
+     * @return if the instance was found
+     */
+    boolean destroyInstance(String handle);
 
     /**
      * @return Flux with handles of running servers
      */
-    Result<List<ServerInstance>, String> getInstances();
+    List<ServerInstance> getInstances();
 
-    Result<@Nullable ServerInstance, String> getInstance(String handle);
+    @Nullable
+    ServerInstance getInstance(String handle);
 }