diff --git a/api/.gitignore b/api/.gitignore
new file mode 100644
index 0000000..b63da45
--- /dev/null
+++ b/api/.gitignore
@@ -0,0 +1,42 @@
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
\ No newline at end of file
diff --git a/api/build.gradle.kts b/api/build.gradle.kts
new file mode 100644
index 0000000..5c0dfcb
--- /dev/null
+++ b/api/build.gradle.kts
@@ -0,0 +1,11 @@
+plugins {
+    id("lighteco.shadow-logic")
+}
+
+dependencies {
+    compileOnly("org.projectlombok:lombok:1.18.28")
+    annotationProcessor("org.projectlombok:lombok:1.18.28")
+
+    compileOnly("org.checkerframework:checker-qual:3.8.0")
+    compileOnly("org.jetbrains:annotations:20.1.0")
+}
\ No newline at end of file
diff --git a/api/src/main/java/dev/xhyrom/lighteco/api/LightEco.java b/api/src/main/java/dev/xhyrom/lighteco/api/LightEco.java
new file mode 100644
index 0000000..b0b4172
--- /dev/null
+++ b/api/src/main/java/dev/xhyrom/lighteco/api/LightEco.java
@@ -0,0 +1,20 @@
+package dev.xhyrom.lighteco.api;
+
+import dev.xhyrom.lighteco.api.managers.UserManager;
+import dev.xhyrom.lighteco.api.platform.Platform;
+import dev.xhyrom.lighteco.api.platform.PlayerAdapter;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+public interface LightEco {
+    /**
+     * Gets the {@link Platform}, which represents the current platform the
+     * plugin is running on.
+     *
+     * @return the platform
+     */
+    @NonNull Platform getPlatform();
+
+    @NonNull UserManager getUserManager();
+
+    <T> @NonNull PlayerAdapter<T> getPlayerAdapter(@NonNull Class<T> playerClass);
+}
diff --git a/api/src/main/java/dev/xhyrom/lighteco/api/LightEcoProvider.java b/api/src/main/java/dev/xhyrom/lighteco/api/LightEcoProvider.java
new file mode 100644
index 0000000..c5bdfee
--- /dev/null
+++ b/api/src/main/java/dev/xhyrom/lighteco/api/LightEcoProvider.java
@@ -0,0 +1,35 @@
+package dev.xhyrom.lighteco.api;
+
+import lombok.experimental.UtilityClass;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+import static org.jetbrains.annotations.ApiStatus.Internal;
+
+@UtilityClass
+public final class LightEcoProvider {
+    private static LightEco instance;
+
+    public static @NonNull LightEco get() {
+        LightEco instance = LightEcoProvider.instance;
+        if (instance == null) {
+            throw new NotLoadedException();
+        };
+
+        return instance;
+    }
+
+    @Internal
+    public static void set(LightEco instance) {
+        if (LightEcoProvider.instance != null) {
+            throw new IllegalStateException("LightEco is already loaded!");
+        };
+
+        LightEcoProvider.instance = instance;
+    }
+
+    private static final class NotLoadedException extends IllegalStateException {
+        private NotLoadedException() {
+            super("LightEco is not loaded yet!");
+        }
+    }
+}
diff --git a/api/src/main/java/dev/xhyrom/lighteco/api/managers/ContextManager.java b/api/src/main/java/dev/xhyrom/lighteco/api/managers/ContextManager.java
new file mode 100644
index 0000000..bb7ebf6
--- /dev/null
+++ b/api/src/main/java/dev/xhyrom/lighteco/api/managers/ContextManager.java
@@ -0,0 +1,10 @@
+package dev.xhyrom.lighteco.api.managers;
+
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+import java.util.UUID;
+
+public interface ContextManager<T> {
+    @NonNull UUID getPlayerUniqueId(@NonNull T context);
+    @NonNull Class<?> getPlayerClass();
+}
diff --git a/api/src/main/java/dev/xhyrom/lighteco/api/managers/UserManager.java b/api/src/main/java/dev/xhyrom/lighteco/api/managers/UserManager.java
new file mode 100644
index 0000000..a941e92
--- /dev/null
+++ b/api/src/main/java/dev/xhyrom/lighteco/api/managers/UserManager.java
@@ -0,0 +1,18 @@
+package dev.xhyrom.lighteco.api.managers;
+
+import dev.xhyrom.lighteco.api.model.user.User;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
+
+import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
+
+public interface UserManager {
+    @NonNull CompletableFuture<User> loadUser(@NonNull UUID uniqueId);
+
+    @NonNull CompletableFuture<Void> saveUser(@NonNull User user);
+
+    @Nullable User getUser(@NonNull UUID uniqueId);
+
+    boolean isLoaded(@NonNull UUID uniqueId);
+}
diff --git a/api/src/main/java/dev/xhyrom/lighteco/api/model/user/User.java b/api/src/main/java/dev/xhyrom/lighteco/api/model/user/User.java
new file mode 100644
index 0000000..97ae61c
--- /dev/null
+++ b/api/src/main/java/dev/xhyrom/lighteco/api/model/user/User.java
@@ -0,0 +1,21 @@
+package dev.xhyrom.lighteco.api.model.user;
+
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+import java.util.UUID;
+
+public interface User {
+    /**
+     * Get the unique id of this user.
+     *
+     * @return the unique id
+     */
+    @NonNull UUID getUniqueId();
+
+    /**
+     * Get the username of this user.
+     *
+     * @return the username
+     */
+    @NonNull String getUsername();
+}
diff --git a/api/src/main/java/dev/xhyrom/lighteco/api/platform/Platform.java b/api/src/main/java/dev/xhyrom/lighteco/api/platform/Platform.java
new file mode 100644
index 0000000..6babce5
--- /dev/null
+++ b/api/src/main/java/dev/xhyrom/lighteco/api/platform/Platform.java
@@ -0,0 +1,23 @@
+package dev.xhyrom.lighteco.api.platform;
+
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+public interface Platform {
+    @NonNull Type getType();
+
+    enum Type {
+        BUKKIT("Bukkit"),
+        VELOCITY("Velocity"),
+        BUNGEECORD("BungeeCord");
+
+        private final String displayName;
+
+        Type(String displayName) {
+            this.displayName = displayName;
+        }
+
+        public String getName() {
+            return displayName;
+        }
+    }
+}
diff --git a/api/src/main/java/dev/xhyrom/lighteco/api/platform/PlayerAdapter.java b/api/src/main/java/dev/xhyrom/lighteco/api/platform/PlayerAdapter.java
new file mode 100644
index 0000000..bf3be6a
--- /dev/null
+++ b/api/src/main/java/dev/xhyrom/lighteco/api/platform/PlayerAdapter.java
@@ -0,0 +1,10 @@
+package dev.xhyrom.lighteco.api.platform;
+
+import dev.xhyrom.lighteco.api.model.user.User;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+import java.util.concurrent.CompletableFuture;
+
+public interface PlayerAdapter<T> {
+    @NonNull CompletableFuture<User> getUser(@NonNull T player);
+}
diff --git a/buildSrc/src/main/kotlin/lighteco.base-logic.gradle.kts b/buildSrc/src/main/kotlin/lighteco.base-logic.gradle.kts
index 2d169f1..a799e87 100644
--- a/buildSrc/src/main/kotlin/lighteco.base-logic.gradle.kts
+++ b/buildSrc/src/main/kotlin/lighteco.base-logic.gradle.kts
@@ -4,7 +4,7 @@ plugins {
 }
 
 java {
-    toolchain.languageVersion.set(JavaLanguageVersion.of(17))
+    // toolchain.languageVersion.set(JavaLanguageVersion.of(17))
     withSourcesJar()
 }
 
diff --git a/bukkit/build.gradle.kts b/bukkit/build.gradle.kts
index bf9743a..395dec8 100644
--- a/bukkit/build.gradle.kts
+++ b/bukkit/build.gradle.kts
@@ -7,5 +7,13 @@ repositories {
 }
 
 dependencies {
+    implementation(project(":lighteco-common"))
+
     compileOnly("io.papermc.paper:paper-api:1.20.1-R0.1-SNAPSHOT")
+
+    compileOnly("org.projectlombok:lombok:1.18.28")
+    annotationProcessor("org.projectlombok:lombok:1.18.28")
+
+    compileOnly("org.checkerframework:checker-qual:3.8.0")
+    compileOnly("org.jetbrains:annotations:20.1.0")
 }
\ No newline at end of file
diff --git a/bukkit/src/main/java/dev/xhyrom/lighteco/bukkit/BukkitContextManager.java b/bukkit/src/main/java/dev/xhyrom/lighteco/bukkit/BukkitContextManager.java
new file mode 100644
index 0000000..bf63e0b
--- /dev/null
+++ b/bukkit/src/main/java/dev/xhyrom/lighteco/bukkit/BukkitContextManager.java
@@ -0,0 +1,19 @@
+package dev.xhyrom.lighteco.bukkit;
+
+import dev.xhyrom.lighteco.api.managers.ContextManager;
+import org.bukkit.entity.Player;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+import java.util.UUID;
+
+public class BukkitContextManager implements ContextManager<Player> {
+    @Override
+    public @NonNull UUID getPlayerUniqueId(@NonNull Player player) {
+        return player.getUniqueId();
+    }
+
+    @Override
+    public @NonNull Class<?> getPlayerClass() {
+        return Player.class;
+    }
+}
diff --git a/bukkit/src/main/java/dev/xhyrom/lighteco/bukkit/BukkitLightEcoPlugin.java b/bukkit/src/main/java/dev/xhyrom/lighteco/bukkit/BukkitLightEcoPlugin.java
index b4f364f..d1057de 100644
--- a/bukkit/src/main/java/dev/xhyrom/lighteco/bukkit/BukkitLightEcoPlugin.java
+++ b/bukkit/src/main/java/dev/xhyrom/lighteco/bukkit/BukkitLightEcoPlugin.java
@@ -1,4 +1,34 @@
 package dev.xhyrom.lighteco.bukkit;
 
-public class BukkitLightEcoPlugin extends JavaPlugin {
+import dev.xhyrom.lighteco.api.managers.ContextManager;
+import dev.xhyrom.lighteco.api.managers.UserManager;
+import dev.xhyrom.lighteco.api.platform.Platform;
+import dev.xhyrom.lighteco.common.LightEcoPlugin;
+import dev.xhyrom.lighteco.common.managers.StandardUserManager;
+import lombok.Getter;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+public class BukkitLightEcoPlugin extends JavaPlugin implements LightEcoPlugin {
+    @Getter
+    private UserManager userManager;
+    @Getter
+    private ContextManager<Player> contextManager;
+
+    @Override
+    public void onLoad() {
+        this.userManager = new StandardUserManager(this);
+        this.contextManager = new BukkitContextManager();
+    }
+
+    @Override
+    public void onEnable() {
+        getLogger().info("BukkitLightEco is enabled!");
+    }
+
+    @Override
+    public Platform.@NonNull Type getPlatformType() {
+        return Platform.Type.BUKKIT;
+    }
 }
diff --git a/bukkit/src/main/resources/plugin.yml b/bukkit/src/main/resources/plugin.yml
new file mode 100644
index 0000000..5cdd92e
--- /dev/null
+++ b/bukkit/src/main/resources/plugin.yml
@@ -0,0 +1,9 @@
+name: ${name}
+description: ${description}
+version: ${version}
+main: dev.xhyrom.lighteco.bukkit.BukkitLightEcoPlugin
+author: ${author}
+api-version: 1.20
+
+softdepend:
+  - Vault
\ No newline at end of file
diff --git a/common/build.gradle.kts b/common/build.gradle.kts
index 0e30611..b3736fe 100644
--- a/common/build.gradle.kts
+++ b/common/build.gradle.kts
@@ -1,3 +1,13 @@
 plugins {
     id("lighteco.shadow-logic")
+}
+
+dependencies {
+    api(project(":lighteco-api"))
+
+    compileOnly("org.projectlombok:lombok:1.18.28")
+    annotationProcessor("org.projectlombok:lombok:1.18.28")
+
+    compileOnly("org.checkerframework:checker-qual:3.8.0")
+    compileOnly("org.jetbrains:annotations:20.1.0")
 }
\ No newline at end of file
diff --git a/common/src/main/java/dev/xhyrom/Main.java b/common/src/main/java/dev/xhyrom/Main.java
deleted file mode 100644
index aec9966..0000000
--- a/common/src/main/java/dev/xhyrom/Main.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package dev.xhyrom;
-
-public class Main {
-    public static void main(String[] args) {
-        System.out.println("Hello world!");
-    }
-}
\ No newline at end of file
diff --git a/common/src/main/java/dev/xhyrom/lighteco/common/LightEcoPlugin.java b/common/src/main/java/dev/xhyrom/lighteco/common/LightEcoPlugin.java
new file mode 100644
index 0000000..d73d8d2
--- /dev/null
+++ b/common/src/main/java/dev/xhyrom/lighteco/common/LightEcoPlugin.java
@@ -0,0 +1,13 @@
+package dev.xhyrom.lighteco.common;
+
+import dev.xhyrom.lighteco.api.managers.ContextManager;
+import dev.xhyrom.lighteco.api.managers.UserManager;
+import dev.xhyrom.lighteco.api.platform.Platform;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+public interface LightEcoPlugin {
+    Platform.@NonNull Type getPlatformType();
+
+    @NonNull UserManager getUserManager();
+    @NonNull ContextManager<?> getContextManager();
+}
diff --git a/common/src/main/java/dev/xhyrom/lighteco/common/api/LightEcoApi.java b/common/src/main/java/dev/xhyrom/lighteco/common/api/LightEcoApi.java
new file mode 100644
index 0000000..8e850dc
--- /dev/null
+++ b/common/src/main/java/dev/xhyrom/lighteco/common/api/LightEcoApi.java
@@ -0,0 +1,45 @@
+package dev.xhyrom.lighteco.common.api;
+
+import dev.xhyrom.lighteco.api.LightEco;
+import dev.xhyrom.lighteco.api.managers.UserManager;
+import dev.xhyrom.lighteco.api.platform.Platform;
+import dev.xhyrom.lighteco.api.platform.PlayerAdapter;
+import dev.xhyrom.lighteco.common.LightEcoPlugin;
+import dev.xhyrom.lighteco.common.api.impl.ApiPlatform;
+import dev.xhyrom.lighteco.common.api.impl.ApiPlayerAdapter;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+public class LightEcoApi implements LightEco {
+    private final LightEcoPlugin plugin;
+
+    private final Platform platform;
+    private final PlayerAdapter<?> playerAdapter;
+
+    public LightEcoApi(LightEcoPlugin plugin) {
+        this.plugin = plugin;
+
+        this.platform = new ApiPlatform(plugin);
+        this.playerAdapter = new ApiPlayerAdapter<>(plugin.getUserManager(), plugin.getContextManager());
+    }
+
+    @Override
+    public @NonNull Platform getPlatform() {
+        return this.platform;
+    }
+
+    @Override
+    public @NonNull UserManager getUserManager() {
+        return this.plugin.getUserManager();
+    }
+
+    @Override
+    public @NonNull <T> PlayerAdapter<T> getPlayerAdapter(@NonNull Class<T> playerClass) {
+        Class<?> expected = this.plugin.getContextManager().getPlayerClass();
+
+        if (!expected.equals(playerClass)) {
+            throw new IllegalArgumentException("Expected player class " + expected.getName() + ", got " + playerClass.getName());
+        }
+
+        return (PlayerAdapter<T>) this.playerAdapter;
+    }
+}
diff --git a/common/src/main/java/dev/xhyrom/lighteco/common/api/impl/ApiPlatform.java b/common/src/main/java/dev/xhyrom/lighteco/common/api/impl/ApiPlatform.java
new file mode 100644
index 0000000..199e081
--- /dev/null
+++ b/common/src/main/java/dev/xhyrom/lighteco/common/api/impl/ApiPlatform.java
@@ -0,0 +1,18 @@
+package dev.xhyrom.lighteco.common.api.impl;
+
+import dev.xhyrom.lighteco.api.platform.Platform;
+import dev.xhyrom.lighteco.common.LightEcoPlugin;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+public class ApiPlatform implements Platform {
+    private final LightEcoPlugin plugin;
+
+    public ApiPlatform(LightEcoPlugin plugin) {
+        this.plugin = plugin;
+    }
+
+    @Override
+    public @NonNull Type getType() {
+        return this.plugin.getPlatformType();
+    }
+}
diff --git a/common/src/main/java/dev/xhyrom/lighteco/common/api/impl/ApiPlayerAdapter.java b/common/src/main/java/dev/xhyrom/lighteco/common/api/impl/ApiPlayerAdapter.java
new file mode 100644
index 0000000..ad74806
--- /dev/null
+++ b/common/src/main/java/dev/xhyrom/lighteco/common/api/impl/ApiPlayerAdapter.java
@@ -0,0 +1,32 @@
+package dev.xhyrom.lighteco.common.api.impl;
+
+import dev.xhyrom.lighteco.api.managers.ContextManager;
+import dev.xhyrom.lighteco.api.model.user.User;
+import dev.xhyrom.lighteco.api.managers.UserManager;
+import dev.xhyrom.lighteco.api.platform.PlayerAdapter;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
+
+public class ApiPlayerAdapter<T> implements PlayerAdapter<T> {
+    private final UserManager userManager;
+    private final ContextManager<T> contextManager;
+
+    public ApiPlayerAdapter(UserManager userManager, ContextManager<T> contextManager) {
+        this.userManager = userManager;
+        this.contextManager = contextManager;
+    }
+
+    @Override
+    public @NonNull CompletableFuture<User> getUser(@NonNull T player) {
+        UUID uniqueId = contextManager.getPlayerUniqueId(player);
+        boolean loaded = userManager.isLoaded(uniqueId);
+
+        if (loaded) {
+            return CompletableFuture.completedFuture(userManager.getUser(uniqueId));
+        }
+
+        return userManager.loadUser(uniqueId);
+    }
+}
diff --git a/common/src/main/java/dev/xhyrom/lighteco/common/managers/StandardUserManager.java b/common/src/main/java/dev/xhyrom/lighteco/common/managers/StandardUserManager.java
new file mode 100644
index 0000000..84f5e0c
--- /dev/null
+++ b/common/src/main/java/dev/xhyrom/lighteco/common/managers/StandardUserManager.java
@@ -0,0 +1,41 @@
+package dev.xhyrom.lighteco.common.managers;
+
+import dev.xhyrom.lighteco.api.model.user.User;
+import dev.xhyrom.lighteco.api.managers.UserManager;
+import dev.xhyrom.lighteco.common.LightEcoPlugin;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
+
+import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
+
+public class StandardUserManager implements UserManager {
+    private final LightEcoPlugin plugin;
+
+    public StandardUserManager(LightEcoPlugin plugin) {
+        this.plugin = plugin;
+    }
+
+    public User apply(UUID uniqueId) {
+        return new dev.xhyrom.lighteco.common.model.user.User(uniqueId);
+    }
+    @Override
+    public @NonNull CompletableFuture<User> loadUser(@NonNull UUID uniqueId) {
+        return null;
+    }
+
+    @Override
+    public @NonNull CompletableFuture<Void> saveUser(User user) {
+        return null;
+    }
+
+    @Override
+    public @Nullable User getUser(@NonNull UUID uniqueId) {
+        return null;
+    }
+
+    @Override
+    public boolean isLoaded(@NonNull UUID uniqueId) {
+        return false;
+    }
+}
diff --git a/common/src/main/java/dev/xhyrom/lighteco/common/model/user/User.java b/common/src/main/java/dev/xhyrom/lighteco/common/model/user/User.java
new file mode 100644
index 0000000..ab609dc
--- /dev/null
+++ b/common/src/main/java/dev/xhyrom/lighteco/common/model/user/User.java
@@ -0,0 +1,20 @@
+package dev.xhyrom.lighteco.common.model.user;
+
+import lombok.Getter;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+import java.util.UUID;
+
+public class User implements dev.xhyrom.lighteco.api.model.user.User {
+    @Getter
+    private final UUID uniqueId;
+
+    public User(UUID uniqueId) {
+        this.uniqueId = uniqueId;
+    }
+
+    @Override
+    public @NonNull String getUsername() {
+        return null;
+    }
+}
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 8567d08..1ddc1bb 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,6 +1,7 @@
 rootProject.name = "lighteco-parent"
 
 sequenceOf(
+    "api",
     "common",
     "bukkit",
     "velocity"