diff --git a/LICENCE b/LICENCE
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+++ b/LICENCE
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+MIT Licence
+
+Copyright (c) 2026 OnixByte
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
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+# Delta Force Guide Server
+
+REST API backend for managing **Delta Force** game firearm builds and modifications. Provides endpoints to browse, create, and share weapon configurations including attachments, tuning setups, tags, and build reviews.
+
+
+## Tech Stack
+
+| Layer     | Technology                                                 |
+|-----------|------------------------------------------------------------|
+| Language  | Java 21 (Amazon Corretto)                                  |
+| Framework | Spring Boot 3.x (Web, Security, Data JPA, Cache, Actuator) |
+| Build     | Gradle (Kotlin DSL)                                        |
+| Database  | PostgreSQL (Flyway migrations, JSONB columns)              |
+| Cache     | Redis (2-hour TTL)                                         |
+| Auth      | Custom JWT via httpOnly cookies + BCrypt                   |
+| API Docs  | springdoc-openapi (Swagger UI, dev profile only)           |
+| Container | Multi-stage Docker image (Amazon Corretto 21 → Alpine)     |
+| CI/CD     | GitHub Actions — builds on release publish                 |
+
+
+## Quick Start
+
+### Prerequisites
+
+- JDK 21 (Amazon Corretto recommended)
+- PostgreSQL
+- Redis
+
+### Configure
+
+Copy and customise the development config:
+
+```bash
+cp config/application-prod.yaml.example \
+   config/application-dev.yaml
+```
+
+Fill in your datasource and Redis connection details, then place the production config at `config/`, then enable it by environment variable `SPRING_PROFILES_ACTIVE`.
+
+### Build
+
+```bash
+# Compile (skip tests)
+./gradlew build -x test
+
+# Run all tests
+./gradlew test
+
+# Build executable JAR
+./gradlew bootJar
+```
+
+### Run
+
+```bash
+SPRING_PROFILES_ACTIVE=prod java -jar build/libs/delta-force-guide-server-$version.jar
+```
+
+Swagger UI is available at `http://localhost:8080/swagger-ui.html` when the `dev` profile is active.
+
+## Data Model
+
+- **Firearm** — weapon base stats (name, type, level, calibre, fire rate, armour/body damage, review)
+- **Modification** — a build attached to a firearm, with name, code, tags (JSONB), accessories including nested tuning objects (JSONB), author notes, and video links
+- **App User** — registered user (username, email) with hashed credentials via BCrypt
+
+Tags and accessories are stored as PostgreSQL JSONB columns using [Hypersistence Utils](https://github.com/vladmihalcea/hypersistence-utils), enabling flexible per-build metadata and filtering with the `@>` operator.
+
+
+## Architecture
+
+```
+Controller  →  Service  →  Manager  →  Repository / Mapper
+   (HTTP)      (logic)     (@Transactional)  (data access)
+```
+
+The call chain is strictly enforced — skipping layers is not permitted. All request/response objects are Java records with static `from()` factory methods for entity-to-DTO conversion.
+
+
+## Docker
+
+```bash
+# Build image
+docker pull registry.onixbyte.cn/onixbyte/delta-force-guide-server:latest
+
+# Run container
+docker run -p 8080:8080 \
+  -v /path/to/config:/app/config \
+  -e SPRING_PROFILES_ACTIVE=$your_active_profiles
+  delta-force-guide-server
+```
+
+Pre-built images are published to **Self-hosted GitLab Container Registry** (`registry.onixbyte.cn/onixbyte/delta-force-guide-server`) on every release.
+
+
+## CI/CD
+
+GitLab CI triggers on **tags**. The pipeline:
+
+1. Builds the boot JAR with the release tag as the version
+2. Uploads the JAR as a release asset
+3. Builds and pushes a multi-arch Docker image to GHCR tagged with both `:latest` and `:<version>`
+
+No tests are run in CI by design — tests are expected to pass locally before a release is cut.
+
+
+## Profiles
+
+| Profile | Purpose                                                               |
+|---------|-----------------------------------------------------------------------|
+| `dev`   | Enables Swagger UI, connects to dev DB/Redis at `dfguide.onixbyte.cn` |
+| default | Production mode, no Swagger, uses production datasource               |
+
+
+## Project Structure
+
+```
+src/main/java/com/onixbyte/deltaforceguide/
+├── client/          External service HTTP clients
+├── config/          Spring bean definitions (Security, CORS, Cache, Jackson, MyBatis)
+├── controller/      REST controllers
+├── domain/
+│   ├── converter/   JPA attribute converters
+│   ├── dto/         Request/response records
+│   └── entity/      JPA entities
+├── enumeration/     Enums (FirearmType)
+├── exception/       Custom BizException with HTTP status mapping
+├── filter/          TokenAuthenticationFilter (JWT through OncePerRequestFilter)
+├── manager/         @Transactional wrappers around repositories
+├── mapper/          MyBatis mapper interfaces (reserved for future use)
+├── properties/      @ConfigurationProperties records
+├── repository/      Spring Data JPA repositories
+├── security/
+│   ├── authentication/  Custom UsernamePasswordAuthentication
+│   └── provider/        UsernamePasswordAuthenticationProvider
+├── service/         Business logic
+├── shared/          Constants and utility classes
+└── utils/           General-purpose helpers
+```
+
+
+## Versioning
+
+The application exposes its version at `/versions` (GET).
+
+
+## Licence
+
+This project is licensed under the [MIT Licence](LICENCE). Copyright &copy; 2026 OnixByte.
+
diff --git a/config/application-prod.yaml.example b/config/application-prod.yaml.example
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+spring:
+  datasource:
+    url: jdbc:postgresql://localhost:5432/dfguide_dev
+    username: postgres
+    password: 123456
+    driver-class-name: org.postgresql.Driver
+  data:
+    redis:
+      host: localhost
+      port: 6379
+      database: 0
+      # password: 6hLFVqfGPviTYukn # Uncomment if password is necessary
+
+logging:
+  pattern:
+    # dateformat: dd MMM yyyy HH:mm:ss.SSS # Modify this for custom date format.
+
+app:
+  common:
+    version: 1.3.0.8-dev # Application version, you can change to any version you like, used for communication with frontend.
+  cors:
+    allowed-origins: # Cross-origin allowed origins
+      - "http://localhost:5173" # Dev server for vite.
+      - "http://localhost:4173" # Preview server for vite.
+    allow-credentials: true # Must be set to `true` since we are using cookie. You can change it only when you have modified how this application executing authentication.
+    allow-private-network: false
+    allowed-headers:
+      - "Content-Type"
+      - "Authorization"
+    allowed-methods:
+      - GET
+      - POST
+      - PUT
+      - PATCH
+      - DELETE
+    exposed-headers:
+      - "Content-Type"
+      - "Authorization"
+    max-age: PT2H
+  jwt:
+    issuer: dfguide.local # Issuer host
+    secret: qwertyuiopasdfghjklzxcvbnm123456 # JWT singing secret, a 32-byte long or longer string is recommended
+    valid-time: PT2H # JWT valid duration
+  cookie: # Cookie settings.
+    http-only: true
+    secure: false
+    same-site: lax
+    path: '/'
+    max-age: PT2H
+
+springdoc:
+  api-docs:
+    enabled: true # Set to `false` if you do not need api docs (recommended in production mode).
+  swagger-ui:
+    enabled: true # Set to `false` if you do not need swagger ui (recommended in production mode).
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diff --git a/gradle.properties b/gradle.properties
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-artefactVersion = 1.2.0
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