diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index 802f543..fea4714 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -1,12 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="CompilerConfiguration">
-    <bytecodeTargetLevel>
-      <module name="backend" target="21" />
-      <module name="backend.main" target="21" />
-      <module name="backend.test" target="21" />
-    </bytecodeTargetLevel>
-  </component>
   <component name="JavacSettings">
     <option name="ADDITIONAL_OPTIONS_OVERRIDE">
       <module name="backend" options="-parameters" />
diff --git a/docs/DEVELOPMENT.md b/docs/DEVELOPMENT.md
index eaebcf2..156b667 100644
--- a/docs/DEVELOPMENT.md
+++ b/docs/DEVELOPMENT.md
@@ -96,7 +96,74 @@ docker run -d \
 ### Prerequisites
 
 - Gitea Actions runner must be configured and running.
-- Repository secrets `REGISTRY_USERNAME` and `REGISTRY_PASSWORD` must be set in **Settings → Secrets** of the Gitea repository. These credentials are used to authenticate with the Gitea Container Registry.
+- Gitea Container Registry must be enabled on the server.
+- Repository secrets `REGISTRY_USERNAME` and `REGISTRY_PASSWORD` must be set in the Gitea repository.
+
+### Enabling Container Registry on Gitea server
+
+Container Registry is a built-in feature of Gitea 1.17+. It is **not** configured through the web admin panel — it is enabled via the `app.ini` configuration file on the server.
+
+**1. Find `app.ini` on your server.** The location depends on your installation method:
+
+| Installation | Path to `app.ini` |
+|--------------|-------------------|
+| Docker (official image) | `/data/gitea/conf/app.ini` inside the container |
+| System package (APT/YUM) | `/etc/gitea/app.ini` |
+| Manual binary install | `<working-dir>/custom/conf/app.ini` |
+
+You can also find the path from Gitea web interface: **Site Administration → Configuration Summary** — look for `CustomConf` value.
+
+**2. Edit `app.ini`** and add the `[packages]` section:
+
+```ini
+[packages]
+ENABLED = true
+```
+
+If the `[packages]` section already exists, make sure `ENABLED = true`.
+
+**3. Restart Gitea** to apply the changes:
+
+```bash
+# Docker
+docker compose restart gitea
+
+# System service
+sudo systemctl restart gitea
+```
+
+**4. Verify** that the registry is working by visiting `https://gitea.jambotron.com/user/packages` — you should see a "Packages" tab.
+
+### Creating an Access Token for CI/CD
+
+The CI/CD workflow cannot use your account password. You need a Personal Access Token with package permissions:
+
+1. Log in to Gitea as `Liosha84`.
+2. Go to **Settings** (your avatar → Settings).
+3. In the left menu: **Applications → Manage Access Tokens**.
+4. You'll see the section: *"These tokens grant access to your account using the Gitea API."*
+5. Click **Generate token**.
+6. Fill in:
+   - **Token name:** `ci-docker-push`
+   - **Expiration:** select **No expiration** (or set a date, but you'll need to update the secret later).
+   - **Scopes:** check **`write:package`** and **`read:package`**.
+7. Click **Generate**.
+8. **Copy the token** — it will be shown only once! Save it securely.
+
+### Configuring repository secrets
+
+1. Open the repository: `https://gitea.jambotron.com/Liosha84/htop-web`.
+2. Go to **Settings** (tab at the top).
+3. In the left menu: **Secrets** (or **Variables and Secrets → Secrets**).
+4. Click **Add secret**.
+
+**First secret:**
+- **Name:** `REGISTRY_USERNAME`
+- **Value:** `Liosha84` (your Gitea username)
+
+**Second secret:**
+- **Name:** `REGISTRY_PASSWORD`
+- **Value:** paste the Access Token you created in the previous step.
 
 ### Creating a release