diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..f96e3d3
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,104 @@
+include:
+  - .gitlab/*.yml
+
+stages:
+  - Manifest
+  - Test
+  - Bundle
+  - Distribute
+  - Release
+
+variables:
+  ENTRY_FOLDER: $CI_PROJECT_DIR/test # test directory for testing CI/CD, or assets directory for normal operations
+  RELEASE_VERSION: v0.$CI_PIPELINE_IID
+  PACKAGE_REGISTRY_URL: "${CI_API_V4_URL}/projects/${CI_PROJECT_ID}/packages/generic/${PACKAGE_NAME}/${RELEASE_VERSION}"
+
+# Jobs from here run on Merge Requests as prerequisite for merging.
+.manifest-job:
+  stage: Manifest
+  image: node:latest
+  rules:
+    - if: $CI_COMMIT_TAG
+      when: never
+    - if: $CI_MERGE_REQUEST_SOURCE_BRANCH_NAME == "cicd"
+    - changes:
+        - ${ENTRY_FOLDER}/${PACKAGE_NAME}/*
+  script:
+    - cd src/
+    - npm install
+    - npm run start
+    - cat ${ENTRY_FOLDER}/${PACKAGE_NAME}/theme.json
+    - npm run test
+  artifacts:
+    paths:
+      - ${ENTRY_FOLDER}/${PACKAGE_NAME}/theme.json
+    when: on_success
+    expire_in: "1 hour"
+
+.test-job:
+  stage: Test
+  image: python:latest
+  rules:
+    - if: $CI_MERGE_REQUEST_SOURCE_BRANCH_NAME == "cicd"
+    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
+      changes:
+        - ${ENTRY_FOLDER}/${PACKAGE_NAME}/*
+  script:
+    - pip install -U pytest pillow iteration_utilities
+    - python -m pytest src/test_images.py --tb=line -rA --color=yes
+  allow_failure: true
+
+# Jobs from here run Merged_results or Push/Merge Commits to the main branch. Tag is created on release so no run with tag creation
+.bundle-job:
+  stage: Bundle
+  image: javieraviles/zip:latest
+  rules:
+    - if: $CI_COMMIT_TAG
+      when: never
+    - if: $CI_MERGE_REQUEST_SOURCE_BRANCH_NAME == "cicd"
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+      changes:
+        - ${ENTRY_FOLDER}/${PACKAGE_NAME}/*
+  script:
+    - zip -j ${PACKAGE_NAME}.zip ${ENTRY_FOLDER}/${PACKAGE_NAME}/*
+  artifacts:
+    paths:
+      - ${PACKAGE_NAME}.zip
+    when: on_success
+    expire_in: "1 hour"
+
+.upload-job:
+  stage: Distribute
+  image: curlimages/curl:latest
+  rules:
+    - if: $CI_COMMIT_TAG
+      when: never
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+      changes:
+        - ${ENTRY_FOLDER}/${PACKAGE_NAME}/*
+  script:
+    - |
+      curl --fail \
+      --header "JOB-TOKEN: ${CI_JOB_TOKEN}" \
+      --upload-file ${PACKAGE_NAME}.zip "${PACKAGE_REGISTRY_URL}/${PACKAGE_NAME}.zip?select=package_file"
+
+.release-job:
+  stage: Release
+  image: registry.gitlab.com/gitlab-org/release-cli:latest
+  rules:
+    - if: $CI_COMMIT_TAG
+      when: never
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
+      changes:
+        - ${ENTRY_FOLDER}/${PACKAGE_NAME}/*
+  script:
+    - echo "Releasing assets for $PACKAGE_NAME"
+  release:
+    name: "Release $PACKAGE_NAME $RELEASE_VERSION"
+    tag_name: "$PACKAGE_NAME.$RELEASE_VERSION"
+    description: "Version $RELEASE_VERSION"
+    ref: "$CI_COMMIT_SHA"
+    assets:
+      links:
+        - name: ${PACKAGE_NAME}
+          url: "${PACKAGE_REGISTRY_URL}/${PACKAGE_NAME}.zip"
diff --git a/.gitlab/existing_valid_theme_set.yml b/.gitlab/existing_valid_theme_set.yml
new file mode 100644
index 0000000..2179d25
--- /dev/null
+++ b/.gitlab/existing_valid_theme_set.yml
@@ -0,0 +1,32 @@
+manifest-job/existing_valid_theme_set:
+  variables:
+    PACKAGE_NAME: "existing_valid_theme_set"
+  extends: .manifest-job
+
+test-images-job/existing_valid_theme_set:
+  needs:
+    - manifest-job/existing_valid_theme_set
+  variables:
+    PACKAGE_NAME: "existing_valid_theme_set"
+  extends: .test-job
+
+bundle-job/existing_valid_theme_set:
+  needs:
+    - manifest-job/existing_valid_theme_set
+  variables:
+    PACKAGE_NAME: "existing_valid_theme_set"
+  extends: .bundle-job
+
+upload-job/existing_valid_theme_set:
+  needs:
+    - bundle-job/existing_valid_theme_set
+  variables:
+    PACKAGE_NAME: "existing_valid_theme_set"
+  extends: .upload-job
+
+release-job/existing_valid_theme_set:
+  needs:
+    - upload-job/existing_valid_theme_set
+  variables:
+    PACKAGE_NAME: "existing_valid_theme_set"
+  extends: .release-job
diff --git a/.gitlab/unbalanced_set.yml b/.gitlab/unbalanced_set.yml
new file mode 100644
index 0000000..7a6d3ef
--- /dev/null
+++ b/.gitlab/unbalanced_set.yml
@@ -0,0 +1,32 @@
+manifest-job/unbalanced_set:
+  variables:
+    PACKAGE_NAME: "unbalanced_set"
+  extends: .manifest-job
+
+test-images-job/unbalanced_set:
+  needs:
+    - manifest-job/unbalanced_set
+  variables:
+    PACKAGE_NAME: "unbalanced_set"
+  extends: .test-job
+
+bundle-job/unbalanced_set:
+  needs:
+    - manifest-job/unbalanced_set
+  variables:
+    PACKAGE_NAME: "unbalanced_set"
+  extends: .bundle-job
+
+upload-job/unbalanced_set:
+  needs:
+    - bundle-job/unbalanced_set
+  variables:
+    PACKAGE_NAME: "unbalanced_set"
+  extends: .upload-job
+
+release-job/unbalanced_set:
+  needs:
+    - upload-job/unbalanced_set
+  variables:
+    PACKAGE_NAME: "unbalanced_set"
+  extends: .release-job
diff --git a/test/existing_valid_theme_set/stray__1.jpg b/test/existing_valid_theme_set/stray__1.jpg
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diff --git a/test/existing_valid_theme_set/stray__2.jpg b/test/existing_valid_theme_set/stray__2.jpg
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diff --git a/test/existing_valid_theme_set/theme.json b/test/existing_valid_theme_set/theme.json
new file mode 100644
index 0000000..8c3678f
--- /dev/null
+++ b/test/existing_valid_theme_set/theme.json
@@ -0,0 +1,13 @@
+{
+	"dayImageList": [
+		1
+	],
+	"nightImageList": [
+		2
+	],
+	"sunsetImageList": [],
+	"sunriseImageList": [],
+	"imageFilename": "stray__*.jpg",
+	"imageCredits": "©Thoscellen, ©BlueTwelve",
+	"displayName": "Stray"
+}
\ No newline at end of file
diff --git a/test/unbalanced_set/unbalanced_set_1.jpg b/test/unbalanced_set/unbalanced_set_1.jpg
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diff --git a/test/unbalanced_set/unbalanced_set_2.jpg b/test/unbalanced_set/unbalanced_set_2.jpg
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diff --git a/test/unbalanced_set/unbalanced_set_3.jpg b/test/unbalanced_set/unbalanced_set_3.jpg
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