diff --git a/.github/workflows/boxci-merge.yml b/.github/workflows/boxci-merge.yml
new file mode 100644
index 0000000..d704038
--- /dev/null
+++ b/.github/workflows/boxci-merge.yml
@@ -0,0 +1,44 @@
+# Trigger boxci sleek-merge pipeline on push to main (post-merge APK + Flatpak).
+# boxci runs on https://boxci.boxd.sh — see boxci/pipelines/sleek-merge.yml.
+#
+# Manual: ./scripts/boxci/dispatch-merge.sh
+
+name: boxci merge
+
+on:
+  push:
+    branches: [main]
+
+concurrency:
+  group: boxci-merge-${{ github.sha }}
+  cancel-in-progress: false
+
+jobs:
+  trigger:
+    name: Trigger boxci merge build
+    runs-on: ubuntu-latest
+    steps:
+      - name: POST boxci /api/runs
+        env:
+          BOXCI_URL: https://boxci.boxd.sh
+        run: |
+          set -euo pipefail
+          payload="$(jq -n \
+            --arg pipeline "sleek-merge.yml" \
+            --arg trigger "merge" \
+            --arg sha "${{ github.sha }}" \
+            --arg ref "${{ github.ref }}" \
+            '{
+              pipeline: $pipeline,
+              env: {
+                BOXCI_TRIGGER: $trigger,
+                GIT_SHA: $sha,
+                GIT_REF: $ref,
+                SLEEK_BRANCH: "main"
+              }
+            }')"
+          echo "POST ${BOXCI_URL}/api/runs"
+          curl -fsSL -X POST "${BOXCI_URL}/api/runs" \
+            -H "Content-Type: application/json" \
+            -d "$payload" \
+            | jq '{id, status, pipeline, duration_s}'
diff --git a/scripts/boxci/dispatch-merge.sh b/scripts/boxci/dispatch-merge.sh
new file mode 100755
index 0000000..3ef24a9
--- /dev/null
+++ b/scripts/boxci/dispatch-merge.sh
@@ -0,0 +1,87 @@
+#!/usr/bin/env bash
+# Trigger boxci sleek-merge pipeline (APK + Flatpak after merge to main).
+#
+# Usage:
+#   ./scripts/boxci/dispatch-merge.sh
+#   ./scripts/boxci/dispatch-merge.sh --sha abc1234
+#
+# Env:
+#   BOXCI_URL          — default https://boxci.boxd.sh
+#   SLEEK_BRANCH       — default main
+#   OPENBAO_TOKEN      — optional; not required for trigger itself
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
+cd "$REPO_ROOT"
+
+usage() {
+  sed -n '2,12p' "$0"
+  exit 2
+}
+
+SHA=""
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --sha)
+      [[ $# -ge 2 ]] || usage
+      SHA="$2"
+      shift 2
+      ;;
+    -h | --help)
+      usage
+      ;;
+    *)
+      if [[ -z "$SHA" && "$1" =~ ^[0-9a-fA-F]{7,40}$ ]]; then
+        SHA="$1"
+        shift
+      else
+        echo "dispatch-merge: unknown arg: $1" >&2
+        usage
+      fi
+      ;;
+  esac
+done
+
+BOXCI_URL="${BOXCI_URL:-https://boxci.boxd.sh}"
+BRANCH="${SLEEK_BRANCH:-main}"
+
+command -v curl >/dev/null 2>&1 || { echo "curl required" >&2; exit 1; }
+command -v jq >/dev/null 2>&1 || { echo "jq required" >&2; exit 1; }
+
+if [[ -z "$SHA" ]]; then
+  command -v git >/dev/null 2>&1 || { echo "git required (or pass --sha)" >&2; exit 1; }
+  SHA="$(git rev-parse "$BRANCH")"
+fi
+
+payload="$(jq -n \
+  --arg pipeline "sleek-merge.yml" \
+  --arg trigger "merge" \
+  --arg sha "$SHA" \
+  --arg branch "$BRANCH" \
+  '{
+    pipeline: $pipeline,
+    env: {
+      BOXCI_TRIGGER: $trigger,
+      GIT_SHA: $sha,
+      SLEEK_BRANCH: $branch
+    }
+  }')"
+
+url="${BOXCI_URL%/}/api/runs"
+echo "POST $url"
+echo "  pipeline=sleek-merge.yml BOXCI_TRIGGER=merge GIT_SHA=${SHA:0:7} branch=$BRANCH"
+
+response="$(curl -fsSL -X POST "$url" \
+  -H "Content-Type: application/json" \
+  -d "$payload")"
+
+run_id="$(echo "$response" | jq -r '.id // empty')"
+status="$(echo "$response" | jq -r '.status // empty')"
+
+if [[ -n "$run_id" ]]; then
+  echo "run $run_id: $status"
+  echo "$response" | jq '{id, status, pipeline, duration_s, steps: [.steps[] | {key, label, status}]}'
+else
+  echo "$response" | jq .
+fi