diff --git a/.gitea/workflows/plainleaf-release.yml b/.gitea/workflows/plainleaf-release.yml
index b65342d5..6f35cfbd 100644
--- a/.gitea/workflows/plainleaf-release.yml
+++ b/.gitea/workflows/plainleaf-release.yml
@@ -1,11 +1,14 @@
 name: Plainleaf 自动发布
 
 on:
+  push:
+    branches:
+      - main
   workflow_dispatch:
 
 concurrency:
   group: plainleaf-release
-  cancel-in-progress: true
+  cancel-in-progress: false
 
 jobs:
   release:
diff --git a/deploy/nas/README.md b/deploy/nas/README.md
index f771ec2c..fc9faaf6 100644
--- a/deploy/nas/README.md
+++ b/deploy/nas/README.md
@@ -1,7 +1,7 @@
 # Plainleaf 极空间部署
 
-Plainleaf 使用 Gitea Actions 自动发布。首次安装和验收期间从 Gitea Actions 页面
-手动触发；验收完成后，代码推送到指定分支即可触发。NAS 上的专用 Runner 在隔离
+Plainleaf 使用 Gitea Actions 自动发布。代码推送到 `main` 分支后会自动触发构建和
+部署；也可以从 Gitea Actions 页面手动触发，用于发布失败后的重试。NAS 上的专用 Runner 在隔离
 的 rootless Docker 中构建镜像，推送 `edge` 到 Gitea Registry，然后通过受限
 SSH 密钥触发更新服务。不运行定时器，也不会轮询 Registry。
 只有镜像 ID 变化时才会重建 `plainleaf` 容器，不会执行 `compose down`、Docker
diff --git a/deploy/nas/deployment.test.ts b/deploy/nas/deployment.test.ts
index 0cb75e43..a45a5db6 100644
--- a/deploy/nas/deployment.test.ts
+++ b/deploy/nas/deployment.test.ts
@@ -155,10 +155,13 @@ test("dedicated Actions runner is isolated from the NAS Docker daemon", () => {
   );
 });
 
-test("release workflow never runs for pull requests or a generic runner label", () => {
+test("release workflow runs for main pushes and manual retries only", () => {
   expect(releaseWorkflow).not.toContain("pull_request:");
-  expect(releaseWorkflow).not.toContain("push:");
+  expect(releaseWorkflow).toContain("push:");
+  expect(releaseWorkflow).toContain("branches:");
+  expect(releaseWorkflow).toContain("- main");
   expect(releaseWorkflow).not.toContain("runs-on: ubuntu-latest");
   expect(releaseWorkflow).toContain("workflow_dispatch:");
+  expect(releaseWorkflow).toContain("cancel-in-progress: false");
   expect(releaseWorkflow).not.toMatch(/GITEA_RUNNER_REGISTRATION_TOKEN:\s*\S+/);
 });
diff --git a/deploy/runner/README.md b/deploy/runner/README.md
index c68973a9..8b4cecc5 100644
--- a/deploy/runner/README.md
+++ b/deploy/runner/README.md
@@ -54,6 +54,5 @@ sudo ./install-runner.sh
 工作流不会输出 Secret。镜像推送完成后，它使用固定 SSH host key 触发 NAS 上的
 `plainleaf-update.service`；该服务只拉取并重建 Plainleaf，失败时自动回滚。
 
-首次安装和验收完成前，发布工作流只允许在 Gitea Actions 页面手动触发。确认
-Runner、Registry、NAS 更新服务和回滚流程均正常后，再启用指定分支的 `push`
-触发。
+当前发布工作流会在代码推送到 `main` 分支时自动运行。Gitea Actions 页面仍保留
+手动触发入口，用于发布失败后的重试。