separate workflow to create tag then build

.gitea/workflows/create_release.yaml

@@ -0,0 +1,35 @@
+name: Build iso when a new version is pushed
+run-name: iso building
+on:
+  push:
+    tags:
+      - '*'
+      
+
+jobs:
+  build_and_create_release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: get repo
+        uses: actions/checkout@v4.2.2
+
+#      - name: install nix
+#        uses: https://github.com/cachix/install-nix-action@v31
+#
+#      - name: install go
+#        uses: https://github.com/actions/setup-go@v4
+#        with:
+#          go-version: '>=1.20.1'
+
+      #- name: build iso
+      #  run: make iso
+      #
+      - name: fetch tags
+        run: git fetch --tags
+
+      - name: create release
+        uses: https://gitea.com/actions/release-action@main
+        with:
+          files: |-
+            flake.nix
+          api_key: ${{secrets.RELEASE_TOKEN}}

.gitea/workflows/create_tag.yaml

@@ -0,0 +1,22 @@
+name: Build iso when a new version is pushed
+run-name: iso building
+on:
+  push:
+    branches:
+      - master
+      
+
+jobs:
+  create_and_push_tag:
+    runs-on: ubuntu-latest
+      - name: get repo
+        uses: actions/checkout@v4.2.2
+
+      - name: create tag
+        run: |
+          TAG=$(git rev-parse --short HEAD)
+          echo "Creating tag $TAG"
+          git config user.name "gitea-actions"
+          git config user.email "actions@gitea.com"
+          git tag "$TAG"
+          git push origin "$TAG"

.gitea/workflows/default.yaml

@@ -1,40 +0,0 @@
-name: Build iso when a new version is pushed
-run-name: iso building
-on: [push]
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-      - name: get repo
-        uses: actions/checkout@v4.2.2
-
-      - name: install nix
-        uses: https://github.com/cachix/install-nix-action@v31
-
-      - name: install go
-        uses: https://github.com/actions/setup-go@v4
-        with:
-          go-version: '>=1.20.1'
-
-      #- name: build iso
-      #  run: make iso
-
-      - name: get commit tag
-        id: vars
-        run: echo "TAG=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
-
-      - name: create tag
-        run: |
-          git config user.name "gitea-actions"
-          git config user.email "actions@gitea.com"
-          git tag ${{steps.vars.outputs.TAG}}
-          git push origin ${{steps.vars.outputs.TAG}}
-      
-      - name: create release
-        uses: https://gitea.com/actions/release-action@main
-        with:
-          tag_name: ${{steps.vars.outputs.TAG}}
-          files: |-
-            flake.nix
-          api_key: ${{secrets.RELEASE_TOKEN}}