diff --git a/.github/workflows/continuous-delivery.yml b/.github/workflows/continuous-delivery.yml
index d1a5ca3..7631666 100644
--- a/.github/workflows/continuous-delivery.yml
+++ b/.github/workflows/continuous-delivery.yml
@@ -27,3 +27,15 @@ jobs:
         run: earthly --ci --secret GH_TOKEN +release-artifacts --release "${GITHUB_REF_NAME}"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by GitHub Actions.
+  publish:
+    name: Publish.
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download Earthly v0.8.12.
+        run: "sudo /bin/sh -c 'wget https://github.com/earthly/earthly/releases/download/v0.8.12/earthly-linux-amd64 -O /usr/local/bin/earthly && chmod +x /usr/local/bin/earthly'"
+      - name: Checkout code.
+        uses: actions/checkout@v4
+      - name: Publish.
+        run: earthly --ci --secret CARGO_REGISTRY_TOKEN +publish
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
diff --git a/Earthfile b/Earthfile
index 8ab9e09..6ae72dc 100644
--- a/Earthfile
+++ b/Earthfile
@@ -199,3 +199,10 @@ release-artifacts:
     DO +COPY_SOURCECODE
     ARG release
     RUN --secret GH_TOKEN ./ci/release-artifacts.sh --release "${release}"
+
+
+publish:
+    FROM +rust-base
+    COPY "README.md" "./"
+    DO +COPY_SOURCECODE
+    RUN --secret CARGO_REGISTRY_TOKEN ./ci/publish.sh
diff --git a/ci/publish.sh b/ci/publish.sh
new file mode 100755
index 0000000..4dd61c3
--- /dev/null
+++ b/ci/publish.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env sh
+
+set -o errexit
+set -o xtrace
+
+cargo publish --verbose