diff --git a/.github/workflows/mirror.yaml b/.github/workflows/mirror.yaml
new file mode 100644
index 0000000..352ed37
--- /dev/null
+++ b/.github/workflows/mirror.yaml
@@ -0,0 +1,28 @@
+name: mirror
+on:
+  push:
+    branches: [main]
+    tags: ["*"]
+
+jobs:
+  gitlab-com:
+    runs-on: ubuntu-latest
+    env:
+      REMOTE: mirror
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          # Need all to fetch all tags so we can push them
+          fetch-depth: 0
+
+      - name: Add Remote
+        env:
+          CLONE_URL: "https://releaser-pleaser:${{ secrets.GITLAB_COM_PUSH_TOKEN }}@gitlab.com/apricote/releaser-pleaser.git"
+        run: git remote add $REMOTE $CLONE_URL
+
+      - name: Push Branches
+        run: git push --force --all --verbose $REMOTE
+
+      - name: Push Tags
+        run: git push --force --tags --verbose $REMOTE
diff --git a/.github/workflows/releaser-pleaser.yaml b/.github/workflows/releaser-pleaser.yaml
index ff1c0fa..543c557 100644
--- a/.github/workflows/releaser-pleaser.yaml
+++ b/.github/workflows/releaser-pleaser.yaml
@@ -43,3 +43,4 @@ jobs:
           token: ${{ secrets.RELEASER_PLEASER_TOKEN }}
           extra-files: |
             action.yml
+            templates/run.yml
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..742be9d
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,15 @@
+stages: [release]
+
+# For the GitLab CI/CD component to be usable, it needs to be published in
+# the CI/CD catalog. This happens on new releases.
+# As the primary tagging happens on GitHub, we only react to pushed tags
+# and create a corresponding GitLab Release.
+create-release:
+  stage: release
+  image: registry.gitlab.com/gitlab-org/release-cli:latest
+  script: echo "Creating release $CI_COMMIT_TAG"
+  rules:
+    - if: $CI_COMMIT_TAG
+  release:
+    tag_name: "$CI_COMMIT_TAG"
+    description: "$CI_COMMIT_TAG_MESSAGE"
diff --git a/.ko.yaml b/.ko.yaml
index c7c0e49..49805d6 100644
--- a/.ko.yaml
+++ b/.ko.yaml
@@ -1,3 +1,6 @@
 defaultPlatforms:
   - linux/arm64
-  - linux/amd64
\ No newline at end of file
+  - linux/amd64
+
+# Need a shell for gitlab-ci
+defaultBaseImage: cgr.dev/chainguard/busybox
diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb47b20..33d6ecd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,43 @@
 # Changelog
 
+## [v0.4.0](https://github.com/apricote/releaser-pleaser/releases/tag/v0.4.0)
+
+### Features
+
+- add support for GitLab repositories (#49)
+- add shell to container image (#59)
+- **gitlab**: add CI/CD component (#55)
+
+### Bug Fixes
+
+- **parser**: continue on unparsable commit message (#48)
+- **cli**: command name in help output (#52)
+- **parser**: invalid handling of empty lines (#53)
+- multiple extra-files are not evaluated properly (#61)
+
+## [v0.4.0-beta.1](https://github.com/apricote/releaser-pleaser/releases/tag/v0.4.0-beta.1)
+
+### Features
+
+- add shell to container image (#59)
+- **gitlab**: add CI/CD component (#55)
+
+### Bug Fixes
+
+- multiple extra-files are not evaluated properly (#61)
+
+## [v0.4.0-beta.0](https://github.com/apricote/releaser-pleaser/releases/tag/v0.4.0-beta.0)
+
+### Features
+
+- add support for GitLab repositories (#49)
+
+### Bug Fixes
+
+- **parser**: continue on unparsable commit message (#48)
+- **cli**: command name in help output (#52)
+- **parser**: invalid handling of empty lines (#53)
+
 ## [v0.3.0](https://github.com/apricote/releaser-pleaser/releases/tag/v0.3.0)
 
 ### :sparkles: Highlights
diff --git a/action.yml b/action.yml
index 8e3b8e1..118385a 100644
--- a/action.yml
+++ b/action.yml
@@ -21,12 +21,12 @@ inputs:
 outputs: {}
 runs:
   using: 'docker'
-  image: ghcr.io/apricote/releaser-pleaser:v0.3.0 # x-releaser-pleaser-version
+  image: ghcr.io/apricote/releaser-pleaser:v0.4.0 # x-releaser-pleaser-version
   args:
     - run
     - --forge=github
     - --branch=${{ inputs.branch }}
-    - --extra-files=${{ inputs.extra-files }}
+    - --extra-files="${{ inputs.extra-files }}"
   env:
-    GITHUB_TOKEN: ${{ inputs.token }}
+    GITHUB_TOKEN: "${{ inputs.token }}"
     GITHUB_USER: "oauth2"
diff --git a/cmd/rp/cmd/run.go b/cmd/rp/cmd/run.go
index 8fe818f..c29047b 100644
--- a/cmd/rp/cmd/run.go
+++ b/cmd/rp/cmd/run.go
@@ -95,6 +95,12 @@ func run(cmd *cobra.Command, _ []string) error {
 }
 
 func parseExtraFiles(input string) []string {
+	// We quote the arg to avoid issues with the expected newlines in the value.
+	// Need to remove those quotes before parsing the data
+	input = strings.Trim(input, `"`)
+	// In some situations we get a "\n" sequence, where we actually expect new lines,
+	// replace the two characters with an actual new line
+	input = strings.ReplaceAll(input, `\n`, "\n")
 	lines := strings.Split(input, "\n")
 
 	extraFiles := make([]string, 0, len(lines))
diff --git a/cmd/rp/cmd/run_test.go b/cmd/rp/cmd/run_test.go
new file mode 100644
index 0000000..d4cea7a
--- /dev/null
+++ b/cmd/rp/cmd/run_test.go
@@ -0,0 +1,59 @@
+package cmd
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_parseExtraFiles(t *testing.T) {
+	tests := []struct {
+		name  string
+		input string
+		want  []string
+	}{
+		{
+			name:  "empty",
+			input: ``,
+			want:  []string{},
+		},
+		{
+			name:  "empty quoted",
+			input: `""`,
+			want:  []string{},
+		},
+		{
+			name:  "single",
+			input: `foo.txt`,
+			want:  []string{"foo.txt"},
+		},
+		{
+			name:  "single quoted",
+			input: `"foo.txt"`,
+			want:  []string{"foo.txt"},
+		},
+		{
+			name: "multiple",
+			input: `foo.txt
+dir/Chart.yaml`,
+			want: []string{"foo.txt", "dir/Chart.yaml"},
+		},
+		{
+			name: "multiple quoted",
+			input: `"foo.txt
+dir/Chart.yaml"`,
+			want: []string{"foo.txt", "dir/Chart.yaml"},
+		},
+		{
+			name:  "multiple with broken new lines",
+			input: `"action.yml\ntemplates/run.yml\n"`,
+			want:  []string{"action.yml", "templates/run.yml"},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := parseExtraFiles(tt.input)
+			assert.Equal(t, tt.want, got)
+		})
+	}
+}
diff --git a/templates/run.yml b/templates/run.yml
new file mode 100644
index 0000000..0531c95
--- /dev/null
+++ b/templates/run.yml
@@ -0,0 +1,36 @@
+spec:
+  inputs:
+    # Remember to update docs/reference/gitlab-ci-component.md
+    branch:
+      default: main
+      description: "This branch is used as the target for releases."
+
+    token:
+      description: "GitLab token for creating and updating release MRs."
+
+    extra-files:
+      description: 'List of files that are scanned for version references.'
+      default: ""
+
+    stage:
+      default: build
+      description: 'Defines the build stage'
+    # Remember to update docs/reference/gitlab-ci-component.md
+---
+
+releaser-pleaser:
+  stage: $[[ inputs.stage ]]
+  rules:
+    # There is no way to run a pipeline when the MR description is updated :(
+    - if: $CI_COMMIT_BRANCH == "$[[ inputs.branch ]]"
+  image:
+    name: ghcr.io/apricote/releaser-pleaser:v0.4.0 # x-releaser-pleaser-version
+    entrypoint: [""]
+  variables:
+    GITLAB_TOKEN: $[[ inputs.token ]]
+  script:
+    - |
+      rp run \
+        --forge=gitlab \
+        --branch=$[[ inputs.branch ]] \
+        --extra-files="$[[ inputs.extra-files ]]"