diff --git a/.circleci/config.example.yml b/.circleci/config.example.yml
new file mode 100644
index 000000000..967ccf64b
--- /dev/null
+++ b/.circleci/config.example.yml
@@ -0,0 +1,59 @@
+# https://discuss.circleci.com/t/circleci-2-1-config-overview/26057
+version: 2.1
+
+references:
+  defaults: &defaults
+    working_directory: ~/repo
+    environment:
+      TZ: "/usr/share/zoneinfo/Asia/Hong_Kong"
+      TERM: xterm
+
+jobs:
+  build:
+    <<: *defaults
+    docker:
+      - image: circleci/ruby:2.6.3-node-browsers
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "Gemfile.lock" }}
+            - v1-dependencies-
+      - run:
+          name: update bundler
+          command: |
+            echo 'export BUNDLER_VERSION=$(cat Gemfile.lock | tail -1 | tr -d " ")' >> "$BASH_ENV"
+            source $BASH_ENV
+            gem install bundler
+      - run:
+          name: install ruby dependencies
+          command: bundle install --jobs=4 --retry=3 --path vendor/bundle
+      - save_cache:
+          paths:
+            - ./vendor/bundle
+          key: v1-dependencies-{{ checksum "Gemfile.lock" }}
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "yarn.lock" }}
+            - v1-dependencies-
+      - run:
+          name: install node dependencies
+          command: sudo npm install -g grunt-cli && yarn install --frozen-lockfile
+      - save_cache:
+          paths:
+            - ./node_modules
+          key: v1-dependencies-{{ checksum "yarn.lock" }}
+      - run:
+          name: generate static files
+          command: grunt build
+      - persist_to_workspace:
+          root: ~/repo
+          paths:
+            - Dockerfile
+            - default.conf
+            - _site/*
+
+workflows:
+  build-deploy:
+    jobs:
+      - build
diff --git a/.travis.init.yml b/.travis.example.yml
similarity index 87%
rename from .travis.init.yml
rename to .travis.example.yml
index eb1d5f60c..19ae8b3ad 100644
--- a/.travis.init.yml
+++ b/.travis.example.yml
@@ -1,3 +1,4 @@
+# Travis is slow, I recommend use CircleCI for CI process
 sudo: false
 language: node_js
 cache:
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 1d0ab53ff..000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,19 +0,0 @@
-sudo: false
-language: node_js
-cache:
-  - bundler
-node_js:
-  - "10"
-  - "12"
-before_install:
-  - rvm use 2.6.3 --install --fuzzy
-  - echo 'export BUNDLER_VERSION=$(cat Gemfile.lock | tail -1 | tr -d " ")' >> "$BASH_ENV"
-  - source $BASH_ENV
-  - gem install bundler
-  - bundle install
-matrix:
-  fast_finish: true
-notifications:
-  email: false
-  slack:
-    secure: P/ngpvqinM/t9tdXZO2qHQvq2XCkcerKM+KwNJlQoVHnkl/Z/EtzB1yxiZZ6LGdHp+r3nShBhfW+gJVojU80EObt0iWHbFTkUUMFf6WI6c056937CksQI4atmDBiCJxMAnkd6DCLWfBexVtKDhkc5vX0bYhgoiXEzCYUhFd8pZ4=
diff --git a/_app/_posts/note/2014-06-13-welcome.md b/_app/_posts/note/2014-06-13-welcome.md
index f59af7746..532b895b0 100644
--- a/_app/_posts/note/2014-06-13-welcome.md
+++ b/_app/_posts/note/2014-06-13-welcome.md
@@ -19,7 +19,7 @@ Go to the [GitHub](https://github.com/sparanoid/almace-scaffolding) page for dow
 - A basic, fully configured Jekyll setup with well-defined [Atom feed](https://github.com/sparanoid/almace-scaffolding/blob/master/_app/feed-atom.xml) and [sitemap](https://github.com/sparanoid/almace-scaffolding/blob/master/_app/sitemap.xml)
 - **Almace Scaffolding** ships a sleek responsive theme [Curtana](https://github.com/amsf/amsf-curtana), a variant of [sparanoid.com](https://sparanoid.com/), looking great on any modern browsers
 - Every minified page generates only one HTTP request [^1]
-- [Tons of configurable settings](https://github.com/sparanoid/almace-scaffolding/blob/master/_config.init.yml) for your posts and site customization
+- [Tons of configurable settings](https://github.com/sparanoid/almace-scaffolding/blob/master/_config.example.yml) for your posts and site customization
 - Service Worker support for lightning fast experience
 - Built with Grunt.js for easy development
 - Travis support
diff --git a/_config.init.yml b/_config.example.yml
similarity index 100%
rename from _config.init.yml
rename to _config.example.yml
diff --git a/s3_website.init.yml b/s3_website.example.yml
similarity index 100%
rename from s3_website.init.yml
rename to s3_website.example.yml