diff --git a/.gitea/workflows/nix-deploy.yml b/.gitea/workflows/nix-deploy.yml
deleted file mode 100644
index 8a43398..0000000
--- a/.gitea/workflows/nix-deploy.yml
+++ /dev/null
@@ -1,78 +0,0 @@
-name: Build & Deploy (Nix)
-
-on:
-  push:
-    branches:
-      - main
-  workflow_dispatch:
-
-jobs:
-  build-and-deploy:
-    strategy:
-      fail-fast: false
-      max-parallel: 1
-      matrix:
-        service: [api, ml-service, web]
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Check out repository
-        run: |
-          git clone https://git.imrnes.team/MythEclipse/zeavis-edu.git .
-          git checkout ${{ github.sha }}
-
-      - name: Build & Deploy ${{ matrix.service }}
-        env:
-          VPS_HOST: ${{ secrets.VPS_HOST }}
-          VPS_USER: ${{ secrets.VPS_USER }}
-          VPS_SSH_KEY: ${{ secrets.VPS_SSH_KEY }}
-        run: |
-          set -eu
-
-          # --- Install Nix & Build ---
-          curl -fsSL https://install.determinate.systems/nix \
-            | sh -s -- install linux --no-confirm --init none 2>&1
-
-          mkdir -p /etc/nix
-          echo "experimental-features = nix-command flakes" >> /etc/nix/nix.conf
-
-          . /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
-
-          echo "=== Building: zeavis-${{ matrix.service }} ==="
-          STORE_PATH=$(nix build .#${{ matrix.service }} --impure --option sandbox false --no-link --print-out-paths | tail -1)
-          echo "=== Store path: $STORE_PATH"
-
-          # --- Deploy ---
-          key_file=$(mktemp /tmp/deploy-key.XXXXXX)
-          if printf '%s' "$VPS_SSH_KEY" | base64 -d 2>/dev/null | head -c 6 | grep -q "BEGIN"; then
-            printf '%s' "$VPS_SSH_KEY" | base64 -d > "$key_file"
-          else
-            printf '%s\n' "$VPS_SSH_KEY" > "$key_file"
-          fi
-          chmod 600 "$key_file"
-          sed -i 's/\r$//' "$key_file"
-          ssh-keygen -y -f "$key_file" >/dev/null 2>&1 || { echo "SSH key invalid"; exit 1; }
-
-          export NIX_SSHOPTS="-i $key_file -o StrictHostKeyChecking=no"
-          nix copy --to "ssh://${VPS_USER}@${VPS_HOST}" "$STORE_PATH" 2>&1
-
-          ssh -i "$key_file" -o StrictHostKeyChecking=no "${VPS_USER}@${VPS_HOST}" "
-            set -eu
-            if [ -d /nix/var/nix/profiles/zeavis-${{ matrix.service }} ] && [ ! -L /nix/var/nix/profiles/zeavis-${{ matrix.service }} ]; then
-              rm -rf /nix/var/nix/profiles/zeavis-${{ matrix.service }}
-            fi
-            nix-env --profile /nix/var/nix/profiles/zeavis-${{ matrix.service }} --set $STORE_PATH
-            systemctl daemon-reload
-            systemctl enable zeavis-${{ matrix.service }} 2>/dev/null || true
-            systemctl restart zeavis-${{ matrix.service }}
-            for i in \$(seq 1 30); do
-              systemctl is-active --quiet zeavis-${{ matrix.service }} && break
-              sleep 1
-            done
-            systemctl is-active zeavis-${{ matrix.service }} || {
-              echo \"=== SERVICE FAILED — journal ===\"
-              journalctl -u zeavis-${{ matrix.service }} -n 40 --no-pager
-              exit 1
-            }
-            systemctl status zeavis-${{ matrix.service }} --no-pager 2>&1 | head -8
-          " 2>&1
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
new file mode 100644
index 0000000..de128c3
--- /dev/null
+++ b/.github/workflows/deploy.yml
@@ -0,0 +1,90 @@
+name: Build & Deploy (Nix)
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+concurrency:
+  group: zeavis-deploy
+  cancel-in-progress: false
+
+permissions:
+  contents: read
+
+env:
+  VPS_HOST: ${{ secrets.VPS_HOST }}
+  VPS_USER: ${{ secrets.VPS_USER }}
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      max-parallel: 1
+      matrix:
+        service: [api, ml-service, web]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+          submodules: false
+
+      - name: Install Nix
+        uses: DeterminateSystems/nix-installer-action@v22
+        with:
+          determinate: false
+          extra-conf: |
+            sandbox = false
+            accept-flake-config = true
+
+      - name: Cache Nix
+        uses: DeterminateSystems/magic-nix-cache-action@v14
+
+      - name: Build zeavis-${{ matrix.service }}
+        id: build
+        run: |
+          STORE_PATH=$(nix build .#${{ matrix.service }} --impure --option sandbox false --no-link --print-out-paths | tail -1)
+          echo "store-path=$STORE_PATH" >> "$GITHUB_OUTPUT"
+          echo "Build OK zeavis-${{ 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
+
+      - name: Deploy zeavis-${{ matrix.service }} to VPS
+        run: |
+          STORE_PATH="${{ steps.build.outputs.store-path }}"
+          echo "=== Copying zeavis-${{ matrix.service }}: $STORE_PATH ==="
+          nix copy --to "ssh://$VPS_USER@$VPS_HOST" "$STORE_PATH"
+
+          echo "=== Updating profile + restarting ==="
+          ssh "$VPS_USER@$VPS_HOST" "
+            set -eu
+            if [ -d /nix/var/nix/profiles/zeavis-${{ matrix.service }} ] && [ ! -L /nix/var/nix/profiles/zeavis-${{ matrix.service }} ]; then
+              rm -rf /nix/var/nix/profiles/zeavis-${{ matrix.service }}
+            fi
+            sudo /nix/var/nix/profiles/default/bin/nix-env --profile /nix/var/nix/profiles/zeavis-${{ matrix.service }} --set '$STORE_PATH'
+            sudo systemctl daemon-reload
+            sudo systemctl enable zeavis-${{ matrix.service }} 2>/dev/null || true
+            sudo systemctl restart zeavis-${{ matrix.service }}
+            for i in \$(seq 1 30); do
+              systemctl is-active --quiet zeavis-${{ matrix.service }} && break
+              sleep 1
+            done
+            systemctl is-active zeavis-${{ matrix.service }} || {
+              echo '=== SERVICE FAILED — journal ==='
+              journalctl -u zeavis-${{ matrix.service }} -n 40 --no-pager
+              exit 1
+            }
+            systemctl status zeavis-${{ matrix.service }} --no-pager 2>&1 | head -8
+          "
+          echo "✅ zeavis-${{ matrix.service }} deployed"
diff --git a/.github/workflows/mirror-gitea.yml b/.github/workflows/mirror-gitea.yml
new file mode 100644
index 0000000..0547d3f
--- /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/zeavis-edu.git"
+          git push --mirror gitea
+          echo "✅ Mirrored to Gitea (MythEclipse/zeavis-edu)"