diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..aa6952e
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,2 @@
+DATABASE_URL=postgresql://postgres:postgres@localhost:5432/postgres
+DATABASE_URL_NON_POOLING=postgresql://postgres:postgres@localhost:5432/postgres
diff --git a/README.md b/README.md
index 702f160..a262a1b 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,6 @@
 
 ## To do
 
-- [ ] Add database schema
 - [ ] Add user authentication
 - [ ] Add user roles
 - [ ] Add user permissions
diff --git a/prisma/migrations/20240621082614_initial_schema/migration.sql b/prisma/migrations/20240621082614_initial_schema/migration.sql
new file mode 100644
index 0000000..bf156f7
--- /dev/null
+++ b/prisma/migrations/20240621082614_initial_schema/migration.sql
@@ -0,0 +1,36 @@
+-- CreateEnum
+CREATE TYPE "ModuleType" AS ENUM ('TYPE1', 'TYPE2', 'TYPE3');
+
+-- CreateTable
+CREATE TABLE "User" (
+    "id" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "email" TEXT NOT NULL,
+    "deleted" BOOLEAN NOT NULL DEFAULT false,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "User_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "Module" (
+    "id" DOUBLE PRECISION NOT NULL,
+    "type" "ModuleType" NOT NULL,
+    "text" TEXT NOT NULL,
+    "deleted" BOOLEAN NOT NULL DEFAULT false,
+    "createdById" TEXT NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "Module_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "User_email_key" ON "User"("email");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Module_id_key" ON "Module"("id");
+
+-- AddForeignKey
+ALTER TABLE "Module" ADD CONSTRAINT "Module_createdById_fkey" FOREIGN KEY ("createdById") REFERENCES "User"("id") ON DELETE RESTRICT ON UPDATE CASCADE;
diff --git a/prisma/migrations/migration_lock.toml b/prisma/migrations/migration_lock.toml
new file mode 100644
index 0000000..fbffa92
--- /dev/null
+++ b/prisma/migrations/migration_lock.toml
@@ -0,0 +1,3 @@
+# Please do not edit this file manually
+# It should be added in your version-control system (i.e. Git)
+provider = "postgresql"
\ No newline at end of file
diff --git a/prisma/prisma.ts b/prisma/prisma.ts
new file mode 100644
index 0000000..bb75fe7
--- /dev/null
+++ b/prisma/prisma.ts
@@ -0,0 +1,9 @@
+import { PrismaClient } from '@prisma/client';
+
+const globalForPrisma = global as unknown as { prisma: PrismaClient };
+
+export const prisma = globalForPrisma.prisma || new PrismaClient();
+
+if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = prisma;
+
+export default prisma;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
new file mode 100644
index 0000000..f31019b
--- /dev/null
+++ b/prisma/schema.prisma
@@ -0,0 +1,36 @@
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider  = "postgresql"
+  url       = env("DATABASE_URL") // uses connection pooling
+  directUrl = env("DATABASE_URL_NON_POOLING") // uses a direct connection
+}
+
+enum ModuleType {
+  TYPE1
+  TYPE2
+  TYPE3
+}
+
+model User {
+  id        String   @id @default(cuid())
+  name      String
+  email     String   @unique
+  deleted   Boolean  @default(false)
+  createdAt DateTime @default(now())
+  updatedAt DateTime @updatedAt
+  Module    Module[]
+}
+
+model Module {
+  id          Float      @id @unique
+  type        ModuleType
+  text        String
+  deleted     Boolean    @default(false)
+  createdById String
+  createdBy   User       @relation(fields: [createdById], references: [id])
+  createdAt   DateTime   @default(now())
+  updatedAt   DateTime   @updatedAt
+}