diff --git a/README.md b/README.md
index 34f215b..bf25fb6 100644
--- a/README.md
+++ b/README.md
@@ -22,9 +22,10 @@ Un tracker d'habitudes pour performer au boulot et dans la vie de tous les jours
 
 #### Principaux Outils Informatiques Utilisés
 
-- [React Native](https://reactnative.dev/) + [Expo](https://expo.io/): Framework pour le développement d'applications mobiles.
 - [TypeScript](https://www.typescriptlang.org/): Langage de programmation.
+- [React Native](https://reactnative.dev/) + [Expo](https://expo.io/): Framework pour le développement d'applications mobiles.
 - [React Native Paper](https://callstack.github.io/react-native-paper/): Bibliothèque de composants pour React Native.
+- [React Hook Form](https://react-hook-form.com/) + [Zod](https://zod.dev/): Gestion des formulaires et validation des données.
 - [Supabase](https://supabase.io/): Backend, serveur d'API pour le stockage des données.
 <!--
 - [WatermelonDB](https://nozbe.github.io/WatermelonDB/): Base de données locale, pour permettre une utilisation hors-ligne de l'application.
@@ -68,3 +69,22 @@ Ce n'est pas strictement nécessaire pour le développement de l'application (m
 ```sh
 npm run supabase
 ```
+
+#### Principales Commandes Supabase
+
+```sh
+# Pour réinitialiser la base de données avec les données de test (seed.sql)
+npm run supabase db reset
+
+# Pour synchroniser la base de données (remote) avec le modèle (local)
+npm run supabase db pull
+
+# Pour synchroniser le modèle (local) avec la base de données (remote)
+npm run supabase db push
+
+# Pour générer les types TypeScript
+npm run supabase gen types typescript -- --local > ./infrastructure/repositories/supabase/supabase-types.ts
+
+# Crée un nouveau script de migration à partir des modifications déjà appliquées à votre base de données locale (remplacer `<name-of-migration>` avec le nom de la migration)
+npm run supabase db diff -- -f <name-of-migration>
+```
diff --git a/docs/CONVENTIONS.md b/docs/CONVENTIONS.md
index ac9f57b..6c134ba 100644
--- a/docs/CONVENTIONS.md
+++ b/docs/CONVENTIONS.md
@@ -16,7 +16,7 @@ npm run lint:typescript
 npm run test
 ```
 
-Une pipeline CI ([`.gitlab-ci.yml`](.gitlab-ci.yml)) est en place pour vérifier que le code respecte ces bonnes pratiques et que les tests passent.
+Une pipeline CI ([`.gitlab-ci.yml`](../.gitlab-ci.yml)) est en place pour vérifier que le code respecte ces bonnes pratiques et que les tests passent.
 
 ## GitFlow
 
diff --git a/domain/entities/Goal.ts b/domain/entities/Goal.ts
index 5315af0..fa81fe3 100644
--- a/domain/entities/Goal.ts
+++ b/domain/entities/Goal.ts
@@ -7,6 +7,10 @@ export type GoalType = (typeof GOAL_TYPES)[number]
 interface GoalBase {
   frequency: GoalFrequency
 }
+
+export interface GoalBaseJSON extends GoalBase {
+  type: GoalType
+}
 export abstract class Goal implements GoalBase {
   public frequency: GoalBase["frequency"]
   public abstract readonly type: GoalType
@@ -29,14 +33,18 @@ export abstract class Goal implements GoalBase {
   public isBoolean(): this is GoalBoolean {
     return Goal.isBoolean(this)
   }
+
+  public abstract toJSON(): GoalBaseJSON
 }
 
-interface GoalProgressBase {
+export interface GoalProgressBase {
   goal: Goal
 }
 export abstract class GoalProgress implements GoalProgressBase {
   public abstract readonly goal: Goal
   public abstract isCompleted(): boolean
+
+  public abstract toJSON(): GoalProgressBase
 }
 
 interface GoalNumericOptions extends GoalBase {
@@ -57,6 +65,14 @@ export class GoalNumeric extends Goal {
     const { target } = options
     this.target = target
   }
+
+  public override toJSON(): GoalNumericOptions & GoalBaseJSON {
+    return {
+      frequency: this.frequency,
+      target: this.target,
+      type: this.type,
+    }
+  }
 }
 interface GoalNumericProgressOptions extends GoalProgressBase {
   goal: GoalNumeric
@@ -82,10 +98,24 @@ export class GoalNumericProgress extends GoalProgress {
       ? 0
       : this.progress / this.goal.target.value
   }
+
+  public override toJSON(): GoalNumericProgressOptions {
+    return {
+      goal: this.goal,
+      progress: this.progress,
+    }
+  }
 }
 
 export class GoalBoolean extends Goal {
   public readonly type = "boolean"
+
+  public override toJSON(): GoalBaseJSON {
+    return {
+      frequency: this.frequency,
+      type: this.type,
+    }
+  }
 }
 interface GoalBooleanProgressOptions extends GoalProgressBase {
   goal: GoalBoolean
@@ -105,4 +135,11 @@ export class GoalBooleanProgress extends GoalProgress {
   public override isCompleted(): boolean {
     return this.progress
   }
+
+  public override toJSON(): GoalBooleanProgressOptions {
+    return {
+      goal: this.goal,
+      progress: this.progress,
+    }
+  }
 }
diff --git a/domain/entities/Habit.ts b/domain/entities/Habit.ts
index 0d9401c..9c17f91 100644
--- a/domain/entities/Habit.ts
+++ b/domain/entities/Habit.ts
@@ -1,28 +1,42 @@
-import type { Goal } from "./Goal"
-import type { User } from "./User"
-import type { EntityOptions } from "./_Entity"
-import { Entity } from "./_Entity"
+import { z } from "zod"
 
-export interface HabitOptions extends EntityOptions {
-  userId: User["id"]
-  name: string
-  color: string
-  icon: string
+import type { Goal, GoalBaseJSON } from "./Goal"
+import { Entity, EntitySchema } from "./_Entity"
+
+export const HabitSchema = EntitySchema.extend({
+  userId: z.string(),
+  name: z.string().min(1).max(50),
+  color: z.string().min(4).max(9).regex(/^#/),
+  icon: z.string().min(1),
+})
+
+export const HabitCreateSchema = HabitSchema.extend({}).omit({ id: true })
+export type HabitCreateData = z.infer<typeof HabitCreateSchema>
+
+type HabitDataBase = z.infer<typeof HabitSchema>
+
+export interface HabitData extends HabitDataBase {
   goal: Goal
   startDate: Date
   endDate?: Date
 }
 
-export class Habit extends Entity implements HabitOptions {
-  public userId: HabitOptions["userId"]
-  public name: HabitOptions["name"]
-  public color: HabitOptions["color"]
-  public icon: HabitOptions["icon"]
-  public goal: HabitOptions["goal"]
-  public startDate: HabitOptions["startDate"]
-  public endDate?: HabitOptions["endDate"]
+export interface HabitJSON extends HabitDataBase {
+  goal: GoalBaseJSON
+  startDate: string
+  endDate?: string
+}
 
-  public constructor(options: HabitOptions) {
+export class Habit extends Entity implements HabitData {
+  public userId: HabitData["userId"]
+  public name: HabitData["name"]
+  public color: HabitData["color"]
+  public icon: HabitData["icon"]
+  public goal: HabitData["goal"]
+  public startDate: HabitData["startDate"]
+  public endDate?: HabitData["endDate"]
+
+  public constructor(options: HabitData) {
     const { id, userId, name, color, icon, goal, startDate, endDate } = options
     super({ id })
     this.userId = userId
@@ -33,4 +47,17 @@ export class Habit extends Entity implements HabitOptions {
     this.startDate = startDate
     this.endDate = endDate
   }
+
+  public override toJSON(): HabitJSON {
+    return {
+      id: this.id,
+      userId: this.userId,
+      name: this.name,
+      color: this.color,
+      icon: this.icon,
+      goal: this.goal,
+      startDate: this.startDate.toISOString(),
+      endDate: this.endDate?.toISOString(),
+    }
+  }
 }
diff --git a/domain/entities/HabitHistory.ts b/domain/entities/HabitHistory.ts
index a61b31c..8241b5c 100644
--- a/domain/entities/HabitHistory.ts
+++ b/domain/entities/HabitHistory.ts
@@ -1,16 +1,16 @@
 import type { Habit } from "./Habit"
 import type { HabitProgress } from "./HabitProgress"
 
-export interface HabitHistoryOptions {
+export interface HabitHistoryJSON {
   habit: Habit
   progressHistory: HabitProgress[]
 }
 
-export class HabitHistory implements HabitHistoryOptions {
+export class HabitHistory implements HabitHistoryJSON {
   public habit: Habit
   public progressHistory: HabitProgress[]
 
-  public constructor(options: HabitHistoryOptions) {
+  public constructor(options: HabitHistoryJSON) {
     const { habit, progressHistory } = options
     this.habit = habit
     this.progressHistory = progressHistory
diff --git a/domain/entities/HabitProgress.ts b/domain/entities/HabitProgress.ts
index 32dcbba..82477e9 100644
--- a/domain/entities/HabitProgress.ts
+++ b/domain/entities/HabitProgress.ts
@@ -1,24 +1,41 @@
-import type { GoalProgress } from "./Goal"
+import type { GoalProgress, GoalProgressBase } from "./Goal"
 import type { Habit } from "./Habit"
-import type { EntityOptions } from "./_Entity"
+import type { EntityData } from "./_Entity"
 import { Entity } from "./_Entity"
 
-export interface HabitProgressOptions extends EntityOptions {
+interface HabitProgressDataBase extends EntityData {
   habitId: Habit["id"]
+}
+
+export interface HabitProgressData extends HabitProgressDataBase {
   goalProgress: GoalProgress
   date: Date
 }
 
-export class HabitProgress extends Entity implements HabitProgressOptions {
-  public habitId: HabitProgressOptions["habitId"]
-  public goalProgress: HabitProgressOptions["goalProgress"]
-  public date: HabitProgressOptions["date"]
+export interface HabitProgressJSON extends HabitProgressDataBase {
+  goalProgress: GoalProgressBase
+  date: string
+}
 
-  public constructor(options: HabitProgressOptions) {
+export class HabitProgress extends Entity implements HabitProgressData {
+  public habitId: HabitProgressData["habitId"]
+  public goalProgress: HabitProgressData["goalProgress"]
+  public date: HabitProgressData["date"]
+
+  public constructor(options: HabitProgressData) {
     const { id, habitId, goalProgress, date } = options
     super({ id })
     this.habitId = habitId
     this.goalProgress = goalProgress
     this.date = date
   }
+
+  public override toJSON(): HabitProgressJSON {
+    return {
+      id: this.id,
+      habitId: this.habitId,
+      goalProgress: this.goalProgress,
+      date: this.date.toISOString(),
+    }
+  }
 }
diff --git a/domain/entities/HabitsTracker.ts b/domain/entities/HabitsTracker.ts
index 84e4828..efda364 100644
--- a/domain/entities/HabitsTracker.ts
+++ b/domain/entities/HabitsTracker.ts
@@ -1,13 +1,13 @@
 import type { HabitHistory } from "./HabitHistory"
 
-export interface HabitsTrackerOptions {
+export interface HabitsTrackerData {
   habitsHistory: HabitHistory[]
 }
 
-export class HabitsTracker implements HabitsTrackerOptions {
+export class HabitsTracker implements HabitsTrackerData {
   public habitsHistory: HabitHistory[]
 
-  public constructor(options: HabitsTrackerOptions) {
+  public constructor(options: HabitsTrackerData) {
     const { habitsHistory } = options
     this.habitsHistory = habitsHistory
   }
diff --git a/domain/entities/User.ts b/domain/entities/User.ts
index c9abc9d..2b6fed1 100644
--- a/domain/entities/User.ts
+++ b/domain/entities/User.ts
@@ -1,19 +1,35 @@
-import type { EntityOptions } from "./_Entity"
-import { Entity } from "./_Entity"
+import { z } from "zod"
 
-export interface UserOptions extends EntityOptions {
-  email: string
-  displayName: string
-}
+import { Entity, EntitySchema } from "./_Entity"
 
-export class User extends Entity implements UserOptions {
-  public email: UserOptions["email"]
-  public displayName: UserOptions["displayName"]
+export const UserSchema = EntitySchema.extend({
+  email: z.string().min(1).email(),
+  displayName: z.string().min(1),
+})
 
-  public constructor(options: UserOptions) {
+export const UserRegisterSchema = UserSchema.extend({
+  password: z.string().min(2),
+}).omit({ id: true })
+export type UserRegisterData = z.infer<typeof UserRegisterSchema>
+
+export type UserData = z.infer<typeof UserSchema>
+
+export class User extends Entity implements UserData {
+  public email: UserData["email"]
+  public displayName: UserData["displayName"]
+
+  public constructor(options: UserData) {
     const { id, email, displayName } = options
     super({ id })
     this.email = email
     this.displayName = displayName
   }
+
+  public override toJSON(): UserData {
+    return {
+      id: this.id,
+      email: this.email,
+      displayName: this.displayName,
+    }
+  }
 }
diff --git a/domain/entities/_Entity.ts b/domain/entities/_Entity.ts
index e8abd88..e0a6915 100644
--- a/domain/entities/_Entity.ts
+++ b/domain/entities/_Entity.ts
@@ -1,16 +1,22 @@
-export interface EntityOptions {
-  id: string
-}
+import { z } from "zod"
 
-export abstract class Entity implements EntityOptions {
+export const EntitySchema = z.object({
+  id: z.string(),
+})
+
+export type EntityData = z.infer<typeof EntitySchema>
+
+export abstract class Entity implements EntityData {
   public readonly id: string
 
-  public constructor(options: EntityOptions) {
+  public constructor(options: EntityData) {
     const { id } = options
     this.id = id
   }
 
-  // public equals(entity: Entity): boolean {
-  //   return entity.id === this.id
-  // }
+  public equals(entity: Entity): boolean {
+    return entity.id === this.id
+  }
+
+  public abstract toJSON(): EntityData
 }
diff --git a/domain/use-cases/RetrieveHabitsTracker.ts b/domain/use-cases/RetrieveHabitsTracker.ts
index d3fc19c..ead3fc2 100644
--- a/domain/use-cases/RetrieveHabitsTracker.ts
+++ b/domain/use-cases/RetrieveHabitsTracker.ts
@@ -36,7 +36,12 @@ export class RetrieveHabitsTrackerUseCase
           await this.getHabitProgressHistoryRepository.execute({
             habit,
           })
-        return new HabitHistory({ habit, progressHistory })
+        return new HabitHistory({
+          habit,
+          progressHistory: progressHistory.sort((a, b) => {
+            return a.date.getTime() - b.date.getTime()
+          }),
+        })
       }),
     )
     const habitsTracker = new HabitsTracker({
diff --git a/package-lock.json b/package-lock.json
index bf370b5..0a465dd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,6 +10,7 @@
       "hasInstallScript": true,
       "dependencies": {
         "@expo/vector-icons": "14.0.0",
+        "@hookform/resolvers": "3.3.4",
         "@react-navigation/native": "6.1.16",
         "@supabase/supabase-js": "2.39.8",
         "expo": "50.0.13",
@@ -23,13 +24,15 @@
         "immer": "10.0.4",
         "react": "18.2.0",
         "react-dom": "18.2.0",
+        "react-hook-form": "7.51.1",
         "react-native": "0.73.5",
         "react-native-calendars": "1.1304.1",
         "react-native-paper": "5.12.3",
         "react-native-safe-area-context": "4.8.2",
         "react-native-screens": "3.29.0",
         "react-native-vector-icons": "10.0.3",
-        "react-native-web": "0.19.10"
+        "react-native-web": "0.19.10",
+        "zod": "3.22.4"
       },
       "devDependencies": {
         "@babel/core": "7.24.0",
@@ -4261,6 +4264,14 @@
         "@hapi/hoek": "^9.0.0"
       }
     },
+    "node_modules/@hookform/resolvers": {
+      "version": "3.3.4",
+      "resolved": "https://registry.npmjs.org/@hookform/resolvers/-/resolvers-3.3.4.tgz",
+      "integrity": "sha512-o5cgpGOuJYrd+iMKvkttOclgwRW86EsWJZZRC23prf0uU2i48Htq4PuT73AVb9ionFyZrwYEITuOFGF+BydEtQ==",
+      "peerDependencies": {
+        "react-hook-form": "^7.0.0"
+      }
+    },
     "node_modules/@humanwhocodes/config-array": {
       "version": "0.11.14",
       "resolved": "https://registry.npmjs.org/@humanwhocodes/config-array/-/config-array-0.11.14.tgz",
@@ -19905,6 +19916,21 @@
         "react-dom": "^16.6.0 || ^17.0.0 || ^18.0.0"
       }
     },
+    "node_modules/react-hook-form": {
+      "version": "7.51.1",
+      "resolved": "https://registry.npmjs.org/react-hook-form/-/react-hook-form-7.51.1.tgz",
+      "integrity": "sha512-ifnBjl+kW0ksINHd+8C/Gp6a4eZOdWyvRv0UBaByShwU8JbVx5hTcTWEcd5VdybvmPTATkVVXk9npXArHmo56w==",
+      "engines": {
+        "node": ">=12.22.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/react-hook-form"
+      },
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17 || ^18"
+      }
+    },
     "node_modules/react-is": {
       "version": "16.13.1",
       "resolved": "https://registry.npmjs.org/react-is/-/react-is-16.13.1.tgz",
@@ -23183,6 +23209,14 @@
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
       }
+    },
+    "node_modules/zod": {
+      "version": "3.22.4",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-3.22.4.tgz",
+      "integrity": "sha512-iC+8Io04lddc+mVqQ9AZ7OQ2MrUKGN+oIQyq1vemgt46jwCwLfhq7/pwnBnNXXXZb8VTVLKwp9EDkx+ryxIWmg==",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
     }
   }
 }
diff --git a/package.json b/package.json
index 48d9eb7..9691d34 100644
--- a/package.json
+++ b/package.json
@@ -14,11 +14,12 @@
     "lint:typescript": "tsc --noEmit",
     "lint:staged": "lint-staged",
     "test": "jest --coverage --reporters=default --reporters=jest-junit",
-    "supabase": "supabase --workdir \"./data/infrastructure/repositories\"",
+    "supabase": "supabase --workdir \"./infrastructure/repositories\"",
     "postinstall": "husky"
   },
   "dependencies": {
     "@expo/vector-icons": "14.0.0",
+    "@hookform/resolvers": "3.3.4",
     "@react-navigation/native": "6.1.16",
     "@supabase/supabase-js": "2.39.8",
     "expo": "50.0.13",
@@ -32,13 +33,15 @@
     "immer": "10.0.4",
     "react": "18.2.0",
     "react-dom": "18.2.0",
+    "react-hook-form": "7.51.1",
     "react-native": "0.73.5",
     "react-native-calendars": "1.1304.1",
     "react-native-paper": "5.12.3",
     "react-native-safe-area-context": "4.8.2",
     "react-native-screens": "3.29.0",
     "react-native-vector-icons": "10.0.3",
-    "react-native-web": "0.19.10"
+    "react-native-web": "0.19.10",
+    "zod": "3.22.4"
   },
   "devDependencies": {
     "@babel/core": "7.24.0",