diff --git a/src/main/java/net/onelitefeather/vulpes/api/model/AttributeEntity.java b/src/main/java/net/onelitefeather/vulpes/api/model/AttributeEntity.java
index efec234..4b4da40 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/model/AttributeEntity.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/model/AttributeEntity.java
@@ -4,7 +4,14 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+import jakarta.persistence.Index;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
 import net.onelitefeather.vulpes.api.generator.VulpesGenerator;
+import net.onelitefeather.vulpes.api.model.project.ProjectEntity;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.UUID;
 
@@ -18,6 +25,9 @@
  * </p>
  */
 @Entity(name = "attributes")
+@Table(name = "attributes", indexes = {
+        @Index(name = "idx_attributes_project_id", columnList = "project_id")
+})
 public class AttributeEntity implements VulpesModel {
 
     @Id
@@ -28,6 +38,10 @@ public class AttributeEntity implements VulpesModel {
     private String variableName;
     private double defaultValue;
     private double maximumValue;
+    @ManyToOne
+    @JoinColumn(name = "project_id", nullable = false)
+    @OnDelete(action = OnDeleteAction.CASCADE)
+    private ProjectEntity project;
 
     /**
      * Default constructor for JPA and Micronaut Data.
@@ -42,18 +56,20 @@ public AttributeEntity() {
     /**
      * Constructs a new {@link AttributeEntity} with the specified values.
      *
-     * @param id            the unique identifier of the attribute
-     * @param uiName     the model name associated with the attribute
-     * @param variableName          the name of the attribute
-     * @param defaultValue  the default value of the attribute
-     * @param maximumValue  the maximum value of the attribute
+     * @param id           the unique identifier of the attribute
+     * @param uiName       the model name associated with the attribute
+     * @param variableName the name of the attribute
+     * @param defaultValue the default value of the attribute
+     * @param maximumValue the maximum value of the attribute
+     * @param project      the project this attribute belongs to
      */
-    public AttributeEntity(UUID id, String uiName, String variableName, double defaultValue, double maximumValue) {
+    public AttributeEntity(UUID id, String uiName, String variableName, double defaultValue, double maximumValue, ProjectEntity project) {
         this.id = id;
         this.uiName = uiName;
         this.variableName = variableName;
         this.defaultValue = defaultValue;
         this.maximumValue = maximumValue;
+        this.project = project;
     }
 
     // Getters and setters for each field
@@ -148,6 +164,24 @@ public void setMaximumValue(double maximumValue) {
         this.maximumValue = maximumValue;
     }
 
+    /**
+     * Returns the project this attribute belongs to.
+     *
+     * @return the project of the attribute
+     */
+    public ProjectEntity getProject() {
+        return project;
+    }
+
+    /**
+     * Sets the project this attribute belongs to.
+     *
+     * @param project the project to set
+     */
+    public void setProject(ProjectEntity project) {
+        this.project = project;
+    }
+
     /**
      * Provides a string representation of the AttributeModel
      *
@@ -161,6 +195,7 @@ public String toString() {
                 ", name='" + variableName + '\'' +
                 ", defaultValue=" + defaultValue +
                 ", maximumValue=" + maximumValue +
+                ", project=" + project +
                 '}';
     }
 }
diff --git a/src/main/java/net/onelitefeather/vulpes/api/model/FontEntity.java b/src/main/java/net/onelitefeather/vulpes/api/model/FontEntity.java
index 8bb0839..b51aa30 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/model/FontEntity.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/model/FontEntity.java
@@ -5,9 +5,16 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+import jakarta.persistence.Index;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
 import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
 import net.onelitefeather.vulpes.api.generator.VulpesGenerator;
 import net.onelitefeather.vulpes.api.model.font.FontStringEntity;
+import net.onelitefeather.vulpes.api.model.project.ProjectEntity;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.List;
 import java.util.UUID;
@@ -22,6 +29,9 @@
  * </p>
  */
 @Entity(name = "fonts")
+@Table(name = "fonts", indexes = {
+        @Index(name = "idx_fonts_project_id", columnList = "project_id")
+})
 public class FontEntity implements VulpesModel {
 
     @Id
@@ -39,6 +49,11 @@ public class FontEntity implements VulpesModel {
     @OneToMany(mappedBy = "font", cascade = CascadeType.ALL)
     private List<FontStringEntity> chars;
 
+    @ManyToOne
+    @JoinColumn(name = "project_id", nullable = false)
+    @OnDelete(action = OnDeleteAction.CASCADE)
+    private ProjectEntity project;
+
     /**
      * Default constructor for JPA and Micronaut Data.
      * <p>
@@ -61,6 +76,7 @@ public FontEntity() {
      * @param height       the height of the font
      * @param ascent       the ascent of the font
      * @param chars        the list of characters included in the font
+     * @param project      the project this font belongs to
      */
     public FontEntity(
             UUID id,
@@ -71,7 +87,8 @@ public FontEntity(
             String comment,
             int height,
             int ascent,
-            List<FontStringEntity> chars
+            List<FontStringEntity> chars,
+            ProjectEntity project
     ) {
         this.id = id;
         this.uiName = uiName;
@@ -82,6 +99,7 @@ public FontEntity(
         this.height = height;
         this.ascent = ascent;
         this.chars = chars;
+        this.project = project;
     }
 
     // Getters and setters for each field
@@ -206,6 +224,24 @@ public void setChars(List<FontStringEntity> chars) {
         this.chars = chars;
     }
 
+    /**
+     * Returns the project this font belongs to.
+     *
+     * @return the project of the font
+     */
+    public ProjectEntity getProject() {
+        return project;
+    }
+
+    /**
+     * Sets the project this font belongs to.
+     *
+     * @param project the project to set
+     */
+    public void setProject(ProjectEntity project) {
+        this.project = project;
+    }
+
     @Override
     public String toString() {
         return "FontEntity{" +
@@ -219,6 +255,7 @@ public String toString() {
                 ", height=" + height +
                 ", ascent=" + ascent +
                 ", chars=" + chars +
+                ", project=" + project +
                 '}';
     }
 }
diff --git a/src/main/java/net/onelitefeather/vulpes/api/model/ItemEntity.java b/src/main/java/net/onelitefeather/vulpes/api/model/ItemEntity.java
index 1db40f8..a40efa5 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/model/ItemEntity.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/model/ItemEntity.java
@@ -5,11 +5,18 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+import jakarta.persistence.Index;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
 import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
 import net.onelitefeather.vulpes.api.generator.VulpesGenerator;
 import net.onelitefeather.vulpes.api.model.item.ItemEnchantmentEntity;
 import net.onelitefeather.vulpes.api.model.item.ItemFlagEntity;
 import net.onelitefeather.vulpes.api.model.item.ItemLoreEntity;
+import net.onelitefeather.vulpes.api.model.project.ProjectEntity;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.List;
 import java.util.UUID;
@@ -24,6 +31,9 @@
  * </p>
  */
 @Entity(name = "items")
+@Table(name = "items", indexes = {
+        @Index(name = "idx_items_project_id", columnList = "project_id")
+})
 public class ItemEntity implements VulpesModel {
 
     @Id
@@ -46,6 +56,11 @@ public class ItemEntity implements VulpesModel {
     @OneToMany(mappedBy = "item", cascade = CascadeType.ALL)
     private List<ItemFlagEntity> flags;
 
+    @ManyToOne
+    @JoinColumn(name = "project_id", nullable = false)
+    @OnDelete(action = OnDeleteAction.CASCADE)
+    private ProjectEntity project;
+
     /**
      * Default constructor for JPA and Micronaut Data.
      * <p>
@@ -71,6 +86,7 @@ public ItemEntity() {
      * @param enchantments    the enchantments applied to the item
      * @param lore            the lore associated with the item
      * @param flags           the flags associated with the item
+     * @param project         the project this item belongs to
      */
     public ItemEntity(
             UUID id,
@@ -84,7 +100,8 @@ public ItemEntity(
             int amount,
             List<ItemEnchantmentEntity> enchantments,
             List<ItemLoreEntity> lore,
-            List<ItemFlagEntity> flags
+            List<ItemFlagEntity> flags,
+            ProjectEntity project
     ) {
         this.id = id;
         this.uiName = uiName;
@@ -98,6 +115,7 @@ public ItemEntity(
         this.enchantments = enchantments;
         this.lore = lore;
         this.flags = flags;
+        this.project = project;
     }
 
     // Getters and setters for each field
@@ -318,6 +336,24 @@ public void setFlags(List<ItemFlagEntity> flags) {
         this.flags = flags;
     }
 
+    /**
+     * Returns the project this item belongs to.
+     *
+     * @return the project of the item
+     */
+    public ProjectEntity getProject() {
+        return project;
+    }
+
+    /**
+     * Sets the project this item belongs to.
+     *
+     * @param project the project to set
+     */
+    public void setProject(ProjectEntity project) {
+        this.project = project;
+    }
+
     /**
      * Provides a string representation of the ItemModel.
      *
@@ -338,6 +374,7 @@ public String toString() {
                 ", enchantments=" + enchantments +
                 ", lore=" + lore +
                 ", flags=" + flags +
+                ", project=" + project +
                 '}';
     }
 }
diff --git a/src/main/java/net/onelitefeather/vulpes/api/model/NotificationEntity.java b/src/main/java/net/onelitefeather/vulpes/api/model/NotificationEntity.java
index c8e9b7f..1fae6da 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/model/NotificationEntity.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/model/NotificationEntity.java
@@ -4,7 +4,14 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+import jakarta.persistence.Index;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
 import net.onelitefeather.vulpes.api.generator.VulpesGenerator;
+import net.onelitefeather.vulpes.api.model.project.ProjectEntity;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.UUID;
 
@@ -18,6 +25,9 @@
  * </p>
  */
 @Entity(name = "notifications")
+@Table(name = "notifications", indexes = {
+        @Index(name = "idx_notifications_project_id", columnList = "project_id")
+})
 public class NotificationEntity implements VulpesModel {
 
     @Id
@@ -30,6 +40,10 @@ public class NotificationEntity implements VulpesModel {
     private String material;
     private String frameType;
     private String title;
+    @ManyToOne
+    @JoinColumn(name = "project_id", nullable = false)
+    @OnDelete(action = OnDeleteAction.CASCADE)
+    private ProjectEntity project;
 
     /**
      * Default constructor for JPA and Micronaut Data.
@@ -51,8 +65,9 @@ public NotificationEntity() {
      * @param material     the material type associated with the notification
      * @param frameType    the frame type associated with the notification
      * @param title        the title of the notification
+     * @param project      the project this notification belongs to
      */
-    public NotificationEntity(UUID id, String uiName, String variableName, String comment, String material, String frameType, String title) {
+    public NotificationEntity(UUID id, String uiName, String variableName, String comment, String material, String frameType, String title, ProjectEntity project) {
         this.id = id;
         this.uiName = uiName;
         this.variableName = variableName;
@@ -60,6 +75,7 @@ public NotificationEntity(UUID id, String uiName, String variableName, String co
         this.material = material;
         this.frameType = frameType;
         this.title = title;
+        this.project = project;
     }
 
     /**
@@ -188,6 +204,24 @@ public void setTitle(String title) {
         this.title = title;
     }
 
+    /**
+     * Returns the project this notification belongs to.
+     *
+     * @return the project of the notification
+     */
+    public ProjectEntity getProject() {
+        return project;
+    }
+
+    /**
+     * Sets the project this notification belongs to.
+     *
+     * @param project the project to set
+     */
+    public void setProject(ProjectEntity project) {
+        this.project = project;
+    }
+
     /**
      * Provides a string representation of the NotificationModel
      *
@@ -203,6 +237,7 @@ public String toString() {
                 ", material='" + material + '\'' +
                 ", frameType='" + frameType + '\'' +
                 ", title='" + title + '\'' +
+                ", project=" + project +
                 '}';
     }
 }
diff --git a/src/main/java/net/onelitefeather/vulpes/api/model/font/FontStringEntity.java b/src/main/java/net/onelitefeather/vulpes/api/model/font/FontStringEntity.java
index 235c13e..ecf9ce5 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/model/font/FontStringEntity.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/model/font/FontStringEntity.java
@@ -8,6 +8,8 @@
 import jakarta.persistence.ManyToOne;
 import net.onelitefeather.vulpes.api.generator.VulpesGenerator;
 import net.onelitefeather.vulpes.api.model.FontEntity;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.Objects;
 import java.util.UUID;
@@ -21,6 +23,7 @@ public final class FontStringEntity implements Comparable<FontStringEntity> {
     private String line;
     @ManyToOne
     @JoinColumn(name = "font_id", nullable = false)
+    @OnDelete(action = OnDeleteAction.CASCADE)
     private FontEntity font;
     private int orderIndex;
 
diff --git a/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemEnchantmentEntity.java b/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemEnchantmentEntity.java
index a252ec0..821bfae 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemEnchantmentEntity.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemEnchantmentEntity.java
@@ -8,6 +8,8 @@
 import jakarta.persistence.ManyToOne;
 import net.onelitefeather.vulpes.api.generator.VulpesGenerator;
 import net.onelitefeather.vulpes.api.model.ItemEntity;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.Objects;
 import java.util.UUID;
@@ -23,6 +25,7 @@ public final class ItemEnchantmentEntity {
     private boolean unsafe;
     @ManyToOne
     @JoinColumn(name = "item_id", nullable = false)
+    @OnDelete(action = OnDeleteAction.CASCADE)
     private ItemEntity item;
 
     /**
diff --git a/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemFlagEntity.java b/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemFlagEntity.java
index 1c0f507..27df451 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemFlagEntity.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemFlagEntity.java
@@ -8,6 +8,8 @@
 import jakarta.persistence.ManyToOne;
 import net.onelitefeather.vulpes.api.generator.VulpesGenerator;
 import net.onelitefeather.vulpes.api.model.ItemEntity;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.Objects;
 import java.util.UUID;
@@ -28,6 +30,7 @@ public final class ItemFlagEntity {
     private String flag;
     @ManyToOne
     @JoinColumn(name = "item_id")
+    @OnDelete(action = OnDeleteAction.CASCADE)
     private ItemEntity item;
 
     /**
diff --git a/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemLoreEntity.java b/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemLoreEntity.java
index b99351b..e658300 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemLoreEntity.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/model/item/ItemLoreEntity.java
@@ -8,6 +8,8 @@
 import jakarta.persistence.ManyToOne;
 import net.onelitefeather.vulpes.api.generator.VulpesGenerator;
 import net.onelitefeather.vulpes.api.model.ItemEntity;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.Objects;
 import java.util.UUID;
@@ -28,6 +30,7 @@ public final class ItemLoreEntity implements Comparable<ItemLoreEntity> {
     private String text;
     @ManyToOne
     @JoinColumn(name = "item_id", nullable = false)
+    @OnDelete(action = OnDeleteAction.CASCADE)
     private ItemEntity item;
     private int orderIndex;
 
diff --git a/src/main/java/net/onelitefeather/vulpes/api/model/sound/SoundEventEntity.java b/src/main/java/net/onelitefeather/vulpes/api/model/sound/SoundEventEntity.java
index f21d806..db62020 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/model/sound/SoundEventEntity.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/model/sound/SoundEventEntity.java
@@ -5,10 +5,17 @@
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
+import jakarta.persistence.Index;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
 import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
 import net.onelitefeather.vulpes.api.generator.VulpesGenerator;
 import net.onelitefeather.vulpes.api.model.VulpesModel;
+import net.onelitefeather.vulpes.api.model.project.ProjectEntity;
 import org.hibernate.annotations.ColumnDefault;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.List;
 import java.util.Objects;
@@ -25,6 +32,9 @@
  * @since 0.1.0
  */
 @Entity(name = "sounds")
+@Table(name = "sounds", indexes = {
+        @Index(name = "idx_sounds_project_id", columnList = "project_id")
+})
 public class SoundEventEntity implements VulpesModel {
 
     @Id
@@ -47,6 +57,11 @@ public class SoundEventEntity implements VulpesModel {
     @OneToMany(mappedBy = "soundEvent")
     private List<SoundFileSource> dataEntities;
 
+    @ManyToOne
+    @JoinColumn(name = "project_id", nullable = false)
+    @OnDelete(action = OnDeleteAction.CASCADE)
+    private ProjectEntity project;
+
     /**
      * Default constructor for JPA and Micronaut Data.
      * <p>
@@ -67,8 +82,9 @@ public SoundEventEntity() {
      * @param replace      whether to replace an existing sound model
      * @param subTitle     the subtitle for the sound model
      * @param dataEntities the list of sound data entities related to this sound model
+     * @param project      the project this sound event belongs to
      */
-    public SoundEventEntity(UUID id, String uiName, String variableName, String keyName, boolean replace, String subTitle, List<SoundFileSource> dataEntities) {
+    public SoundEventEntity(UUID id, String uiName, String variableName, String keyName, boolean replace, String subTitle, List<SoundFileSource> dataEntities, ProjectEntity project) {
         this.id = id;
         this.uiName = uiName;
         this.keyName = keyName;
@@ -76,6 +92,7 @@ public SoundEventEntity(UUID id, String uiName, String variableName, String keyN
         this.replace = replace;
         this.subTitle = subTitle;
         this.dataEntities = dataEntities;
+        this.project = project;
     }
 
     /**
@@ -187,16 +204,34 @@ public void setSoundData(List<SoundFileSource> soundDatumEntities) {
         this.dataEntities = soundDatumEntities;
     }
 
+    /**
+     * Returns the project this sound event belongs to.
+     *
+     * @return the project of the sound event
+     */
+    public ProjectEntity getProject() {
+        return project;
+    }
+
+    /**
+     * Sets the project this sound event belongs to.
+     *
+     * @param project the project to set
+     */
+    public void setProject(ProjectEntity project) {
+        this.project = project;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (o == null || getClass() != o.getClass()) return false;
         SoundEventEntity that = (SoundEventEntity) o;
-        return replace == that.replace && Objects.equals(id, that.id) && Objects.equals(uiName, that.uiName) && Objects.equals(variableName, that.variableName) && Objects.equals(keyName, that.keyName) && Objects.equals(subTitle, that.subTitle) && Objects.equals(dataEntities, that.dataEntities);
+        return replace == that.replace && Objects.equals(id, that.id) && Objects.equals(uiName, that.uiName) && Objects.equals(variableName, that.variableName) && Objects.equals(keyName, that.keyName) && Objects.equals(subTitle, that.subTitle) && Objects.equals(dataEntities, that.dataEntities) && Objects.equals(project, that.project);
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(id, uiName, variableName, keyName, replace, subTitle, dataEntities);
+        return Objects.hash(id, uiName, variableName, keyName, replace, subTitle, dataEntities, project);
     }
 
     @Override
@@ -209,6 +244,7 @@ public String toString() {
                 ", replace=" + replace +
                 ", subTitle='" + subTitle + '\'' +
                 ", dataEntities=" + dataEntities +
+                ", project=" + project +
                 '}';
     }
 }
diff --git a/src/main/java/net/onelitefeather/vulpes/api/model/sound/SoundFileSource.java b/src/main/java/net/onelitefeather/vulpes/api/model/sound/SoundFileSource.java
index a31e8b8..2f4e3cd 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/model/sound/SoundFileSource.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/model/sound/SoundFileSource.java
@@ -9,6 +9,8 @@
 import net.onelitefeather.vulpes.api.generator.VulpesGenerator;
 import net.onelitefeather.vulpes.api.model.VulpesModel;
 import org.hibernate.annotations.ColumnDefault;
+import org.hibernate.annotations.OnDelete;
+import org.hibernate.annotations.OnDeleteAction;
 
 import java.util.Objects;
 import java.util.UUID;
@@ -45,6 +47,7 @@ public class SoundFileSource implements VulpesModel {
 
     @ManyToOne
     @JoinColumn(name = "sound_event_id")
+    @OnDelete(action = OnDeleteAction.CASCADE)
     private SoundEventEntity soundEvent;
 
     /**
diff --git a/src/main/java/net/onelitefeather/vulpes/api/repository/AttributeRepository.java b/src/main/java/net/onelitefeather/vulpes/api/repository/AttributeRepository.java
index c8b2c86..54600ff 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/repository/AttributeRepository.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/repository/AttributeRepository.java
@@ -1,6 +1,8 @@
 package net.onelitefeather.vulpes.api.repository;
 
 import io.micronaut.data.annotation.Repository;
+import io.micronaut.data.model.Page;
+import io.micronaut.data.model.Pageable;
 import io.micronaut.data.repository.PageableRepository;
 import net.onelitefeather.vulpes.api.model.AttributeEntity;
 
@@ -15,4 +17,13 @@
  */
 @Repository
 public interface AttributeRepository extends PageableRepository<AttributeEntity, UUID> {
+
+    /**
+     * Retrieves all attributes that belong to a specific project.
+     *
+     * @param projectId the unique identifier of the project
+     * @param pageable  the pagination information
+     * @return a page of AttributeEntity objects belonging to the project
+     */
+    Page<AttributeEntity> findByProjectId(UUID projectId, Pageable pageable);
 }
diff --git a/src/main/java/net/onelitefeather/vulpes/api/repository/FontRepository.java b/src/main/java/net/onelitefeather/vulpes/api/repository/FontRepository.java
index 41988a1..3d52e68 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/repository/FontRepository.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/repository/FontRepository.java
@@ -2,6 +2,8 @@
 
 import io.micronaut.data.annotation.Query;
 import io.micronaut.data.annotation.Repository;
+import io.micronaut.data.model.Page;
+import io.micronaut.data.model.Pageable;
 import io.micronaut.data.repository.PageableRepository;
 import net.onelitefeather.vulpes.api.model.FontEntity;
 
@@ -25,4 +27,13 @@ public interface FontRepository extends PageableRepository<FontEntity, UUID> {
      */
     @Query("select f from fonts f JOIN FETCH f.chars")
     List<FontEntity> findAll();
+
+    /**
+     * Retrieves all fonts that belong to a specific project.
+     *
+     * @param projectId the unique identifier of the project
+     * @param pageable  the pagination information
+     * @return a page of FontEntity objects belonging to the project
+     */
+    Page<FontEntity> findByProjectId(UUID projectId, Pageable pageable);
 }
diff --git a/src/main/java/net/onelitefeather/vulpes/api/repository/ItemRepository.java b/src/main/java/net/onelitefeather/vulpes/api/repository/ItemRepository.java
index 84e2402..2fdf231 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/repository/ItemRepository.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/repository/ItemRepository.java
@@ -2,6 +2,7 @@
 
 import io.micronaut.data.annotation.Query;
 import io.micronaut.data.annotation.Repository;
+import io.micronaut.data.model.Page;
 import io.micronaut.data.model.Pageable;
 import io.micronaut.data.repository.PageableRepository;
 import net.onelitefeather.vulpes.api.model.ItemEntity;
@@ -29,4 +30,13 @@ public interface ItemRepository extends PageableRepository<ItemEntity, UUID> {
             countQuery = "SELECT count(i) FROM items i"
     )
     List<ItemEntity> findAllWithFetches(Pageable pageable);
+
+    /**
+     * Retrieves all items that belong to a specific project.
+     *
+     * @param projectId the unique identifier of the project
+     * @param pageable  the pagination information
+     * @return a page of ItemEntity objects belonging to the project
+     */
+    Page<ItemEntity> findByProjectId(UUID projectId, Pageable pageable);
 }
diff --git a/src/main/java/net/onelitefeather/vulpes/api/repository/NotificationRepository.java b/src/main/java/net/onelitefeather/vulpes/api/repository/NotificationRepository.java
index f381f99..104c2d9 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/repository/NotificationRepository.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/repository/NotificationRepository.java
@@ -1,6 +1,8 @@
 package net.onelitefeather.vulpes.api.repository;
 
 import io.micronaut.data.annotation.Repository;
+import io.micronaut.data.model.Page;
+import io.micronaut.data.model.Pageable;
 import io.micronaut.data.repository.PageableRepository;
 import net.onelitefeather.vulpes.api.model.NotificationEntity;
 
@@ -15,4 +17,13 @@
  */
 @Repository
 public interface NotificationRepository extends PageableRepository<NotificationEntity, UUID> {
+
+    /**
+     * Retrieves all notifications that belong to a specific project.
+     *
+     * @param projectId the unique identifier of the project
+     * @param pageable  the pagination information
+     * @return a page of NotificationEntity objects belonging to the project
+     */
+    Page<NotificationEntity> findByProjectId(UUID projectId, Pageable pageable);
 }
diff --git a/src/main/java/net/onelitefeather/vulpes/api/repository/SoundRepository.java b/src/main/java/net/onelitefeather/vulpes/api/repository/SoundRepository.java
index f738976..5a8d85b 100644
--- a/src/main/java/net/onelitefeather/vulpes/api/repository/SoundRepository.java
+++ b/src/main/java/net/onelitefeather/vulpes/api/repository/SoundRepository.java
@@ -1,6 +1,8 @@
 package net.onelitefeather.vulpes.api.repository;
 
 import io.micronaut.data.annotation.Repository;
+import io.micronaut.data.model.Page;
+import io.micronaut.data.model.Pageable;
 import io.micronaut.data.repository.PageableRepository;
 import net.onelitefeather.vulpes.api.model.sound.SoundEventEntity;
 
@@ -16,4 +18,13 @@
  */
 @Repository
 public interface SoundRepository extends PageableRepository<SoundEventEntity, UUID> {
+
+    /**
+     * Retrieves all sound events that belong to a specific project.
+     *
+     * @param projectId the unique identifier of the project
+     * @param pageable  the pagination information
+     * @return a page of SoundEventEntity objects belonging to the project
+     */
+    Page<SoundEventEntity> findByProjectId(UUID projectId, Pageable pageable);
 }