diff --git a/.forgejo/workflows/cleanup.yml b/.forgejo/workflows/cleanup.yml
new file mode 100644
index 0000000..48305c8
--- /dev/null
+++ b/.forgejo/workflows/cleanup.yml
@@ -0,0 +1,56 @@
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "30 3 * * *"
+
+jobs:
+  cleanup-workflow-runs:
+    runs-on: docker
+    steps:
+      - name: Install Packages
+        run: apt-get update && apt-get install -y curl jq
+
+      - name: Delete workflow runs older than 14 days
+        env:
+          TOKEN: ${{ forgejo.token }}
+          API: ${{ forgejo.api_url }}
+          REPO: ${{ forgejo.repository }}
+          CURRENT_RUN_ID: ${{ forgejo.run_id }}
+        run: |
+          set -eu
+
+          CUTOFF="$(date -u -d "14 days ago" +"%Y-%m-%dT%H:%M:%SZ")"
+          PAGE=1
+          DELETE_IDS=delete-workflow-runs.txt
+
+          : > "$DELETE_IDS"
+
+          while :; do
+            curl -fsS \
+              -H "Authorization: token $TOKEN" \
+              "$API/repos/$REPO/actions/runs?page=$PAGE&limit=50" \
+              -o runs.json
+
+            COUNT="$(jq '.workflow_runs | length' runs.json)"
+            test "$COUNT" -gt 0 || break
+
+            jq -r \
+              --arg cutoff "$CUTOFF" \
+              --arg current "$CURRENT_RUN_ID" \
+              '.workflow_runs[]
+                | select((.id | tostring) != $current)
+                | select(["success", "failure", "cancelled", "skipped", "succeeded", "failed"] | index(.status))
+                | select(.created < $cutoff)
+                | .id' runs.json \
+              >> "$DELETE_IDS"
+
+            PAGE="$((PAGE + 1))"
+          done
+
+          while IFS= read -r run_id; do
+            test -n "$run_id" || continue
+            echo "Deleting workflow run $run_id"
+            curl -fsS -X DELETE \
+              -H "Authorization: token $TOKEN" \
+              "$API/repos/$REPO/actions/runs/$run_id"
+          done < "$DELETE_IDS"
diff --git a/.forgejo/workflows/deploy-prod.yml b/.forgejo/workflows/deploy-prod.yml
index ef210bd..6adc499 100644
--- a/.forgejo/workflows/deploy-prod.yml
+++ b/.forgejo/workflows/deploy-prod.yml
@@ -232,6 +232,46 @@ jobs:
               -F "attachment=@$file"
           done
 
+      - name: Delete dev releases for prod version
+        env:
+          TOKEN: ${{ forgejo.token }}
+          API: ${{ forgejo.api_url }}
+          REPO: ${{ forgejo.repository }}
+          TAG: ${{ steps.version.outputs.tag }}
+        run: |
+          set -eu
+
+          PAGE=1
+          PREFIX="$TAG-dev-"
+          DELETE_RELEASES=delete-dev-releases.tsv
+
+          : > "$DELETE_RELEASES"
+
+          while :; do
+            curl -fsS \
+              -H "Authorization: token $TOKEN" \
+              "$API/repos/$REPO/releases?page=$PAGE&limit=50&pre-release=true" \
+              -o releases.json
+
+            COUNT="$(jq 'length' releases.json)"
+            test "$COUNT" -gt 0 || break
+
+            jq -r \
+              --arg prefix "$PREFIX" \
+              '.[] | select(.prerelease == true) | select(.tag_name | startswith($prefix)) | [.id, .tag_name] | @tsv' releases.json \
+              >> "$DELETE_RELEASES"
+
+            PAGE="$((PAGE + 1))"
+          done
+
+          while IFS="$(printf '\t')" read -r release_id release_tag; do
+            test -n "$release_id" || continue
+            echo "Deleting dev release $release_tag"
+            curl -fsS -X DELETE \
+              -H "Authorization: token $TOKEN" \
+              "$API/repos/$REPO/releases/$release_id"
+          done < "$DELETE_RELEASES"
+
       - name: Update root flake release hash
         env:
           TAG: ${{ steps.version.outputs.tag }}
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..58c21e6
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,3 @@
+# Information
+
+All dev releases between two prod version get deleted upon creation of the latest prod release.