diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
deleted file mode 100644
index 9761855..0000000
--- a/.gitea/workflows/deploy.yml
+++ /dev/null
@@ -1,98 +0,0 @@
-name: Build & Deploy (Nix)
-
-on:
-  push:
-    branches:
-      - main
-
-jobs:
-  build-and-deploy:
-    runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        service: [backend, discord-gateway, proxy]
-
-    steps:
-      - name: Check out repository
-        run: |
-          git clone https://git.imrnes.team/MythEclipse/GMW.git .
-          git checkout ${{ github.sha }}
-
-      - name: Build & Deploy ${{ matrix.service }}
-        env:
-          VPS_HOST: ${{ secrets.VPS_HOST }}
-          VPS_USER: ${{ secrets.VPS_USER }}
-          VPS_SSH_KEY: ${{ secrets.VPS_SSH_KEY }}
-          # Declarative env: source of truth = Gitea secrets, CI writes the
-          # service env files on the VPS. Update env by editing the secret,
-          # never by SSH-ing into the VPS by hand.
-          BACKEND_ENV: ${{ secrets.BACKEND_ENV }}
-          GATEWAY_ENV: ${{ secrets.GATEWAY_ENV }}
-        run: |
-          set -eu
-
-          # --- Install Nix & Build ---
-          curl -fsSL https://install.determinate.systems/nix \
-            | sh -s -- install linux --no-confirm --init none 2>&1
-
-          mkdir -p /etc/nix
-          echo "experimental-features = nix-command flakes" >> /etc/nix/nix.conf
-
-          . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
-
-          SERVICE="${{ matrix.service }}"
-          echo "=== Building: $SERVICE ==="
-          nix build ".#$SERVICE" --impure --option sandbox false 2>&1
-
-          STORE_PATH=$(readlink result)
-          echo "=== Store path: $STORE_PATH"
-
-          # --- Deploy ---
-          NIX_BIN="/nix/var/nix/profiles/default/bin"
-          PROFILE="/nix/var/nix/profiles/gmw-$SERVICE"
-
-          key_file=$(mktemp /tmp/deploy-key.XXXXXX)
-          printf '%s\n' "$VPS_SSH_KEY" > "$key_file"
-          chmod 600 "$key_file"
-
-          export NIX_SSHOPTS="-i $key_file -o StrictHostKeyChecking=no"
-          nix copy --to "ssh://${VPS_USER}@${VPS_HOST}" "$STORE_PATH" 2>&1
-
-          # --- Deploy env (declarative, from Gitea secrets) ---
-          ENV_TARGET=""
-          ENV_VALUE=""
-          case "$SERVICE" in
-            backend)         ENV_TARGET="/etc/gmw/backend.env"; ENV_VALUE="$BACKEND_ENV" ;;
-            discord-gateway) ENV_TARGET="/etc/gmw/discord-gateway.env"; ENV_VALUE="$GATEWAY_ENV" ;;
-            proxy)           ;;  # nginx proxy has no env file
-          esac
-
-          if [ -n "$ENV_VALUE" ] && [ -n "$ENV_TARGET" ]; then
-            echo "=== Deploying env: $ENV_TARGET ==="
-            printf '%s\n' "$ENV_VALUE" | ssh -i "$key_file" -o StrictHostKeyChecking=no \
-              "${VPS_USER}@${VPS_HOST}" "
-              set -eu
-              mkdir -p /etc/gmw
-              cat > $ENV_TARGET
-              chown gmw:gmw $ENV_TARGET
-              chmod 600 $ENV_TARGET
-              echo \"env file lines: \$(grep -c '=' $ENV_TARGET)\"
-            "
-          else
-            echo "=== No env secret for $SERVICE — skipping env deploy ==="
-          fi
-
-          ssh -i "$key_file" -o StrictHostKeyChecking=no \
-            "${VPS_USER}@${VPS_HOST}" "
-            if [ -d $PROFILE ] && [ ! -L $PROFILE ]; then
-              rm -rf $PROFILE
-            fi
-            export PATH=\$PATH:$NIX_BIN
-            nix-env --profile $PROFILE --set $STORE_PATH
-            systemctl daemon-reload
-            systemctl restart gmw-$SERVICE
-            sleep 3
-            systemctl status gmw-$SERVICE --no-pager 2>&1 | head -12
-          " 2>&1
\ No newline at end of file
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
new file mode 100644
index 0000000..d6d1bc5
--- /dev/null
+++ b/.github/workflows/deploy.yml
@@ -0,0 +1,76 @@
+name: Build & Deploy (Nix)
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+concurrency:
+  group: gmw-deploy
+  cancel-in-progress: false
+
+permissions:
+  contents: read
+
+env:
+  VPS_HOST: ${{ secrets.VPS_HOST }}
+  VPS_USER: ${{ secrets.VPS_USER }}
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        service: [backend, discord-gateway, proxy]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+          submodules: false
+
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v22
+        with:
+          determinate: false
+          extra-conf: |
+            sandbox = false
+            accept-flake-config = true
+
+      - name: Cache Nix
+        uses: DeterminateSystems/magic-nix-cache-action@v14
+
+      - name: Build ${{ matrix.service }}
+        id: build
+        run: |
+          nix build .#${{ matrix.service }} --impure --option sandbox false --print-build-logs
+          STORE_PATH=$(readlink result)
+          echo "store-path=$STORE_PATH" >> "$GITHUB_OUTPUT"
+          echo "Build OK ${{ matrix.service }}: $STORE_PATH"
+
+      - name: Setup SSH key
+        env:
+          SSH_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
+        run: |
+          mkdir -p ~/.ssh
+          echo "$SSH_KEY" > ~/.ssh/id_ed25519
+          chmod 600 ~/.ssh/id_ed25519
+          sed -i 's/\r$//' ~/.ssh/id_ed25519
+          ssh-keygen -y -f ~/.ssh/id_ed25519 >/dev/null 2>&1 || { echo "SSH key invalid"; exit 1; }
+          ssh-keyscan -H "$VPS_HOST" >> ~/.ssh/known_hosts 2>/dev/null
+
+      # NOTE: env files /etc/gmw/backend.env & /etc/gmw/discord-gateway.env are
+      # managed MANUALLY on the VPS (source of truth). CI only builds & deploys.
+      - name: Deploy ${{ matrix.service }} to VPS
+        run: |
+          STORE_PATH="${{ steps.build.outputs.store-path }}"
+          echo "=== Copying ${{ matrix.service }}: $STORE_PATH ==="
+          nix copy --to "ssh://$VPS_USER@$VPS_HOST" "$STORE_PATH"
+
+          echo "=== Updating profile ==="
+          ssh "$VPS_USER@$VPS_HOST" "sudo /nix/var/nix/profiles/default/bin/nix-env --profile /nix/var/nix/profiles/gmw-${{ matrix.service }} --set '$STORE_PATH'"
+
+          echo "=== Restarting service ==="
+          ssh "$VPS_USER@$VPS_HOST" "sudo systemctl daemon-reload && sudo systemctl restart gmw-${{ matrix.service }} && sleep 3 && sudo systemctl is-active gmw-${{ matrix.service }}"
+          echo "✅ gmw-${{ matrix.service }} deployed"
diff --git a/.github/workflows/mirror-gitea.yml b/.github/workflows/mirror-gitea.yml
new file mode 100644
index 0000000..5c53b25
--- /dev/null
+++ b/.github/workflows/mirror-gitea.yml
@@ -0,0 +1,26 @@
+name: Mirror to Gitea
+
+on:
+  push:
+    branches: [main, master]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  mirror:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+
+      - name: Mirror to Gitea
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+        run: |
+          git remote add gitea "https://oauth2:${GITEA_TOKEN}@git.imrnes.team/MythEclipse/GMW.git"
+          git push --mirror gitea
+          echo "✅ Mirrored to Gitea (MythEclipse/GMW)"