diff --git a/.github/workflows/backend-tests.yml b/.github/workflows/backend-tests.yml
index 4c7995f..50cfc69 100644
--- a/.github/workflows/backend-tests.yml
+++ b/.github/workflows/backend-tests.yml
@@ -1,24 +1,19 @@
 name: Backend tests
 
 # The code: formatting, Clippy, the workspace's tests, rustdoc links, the
-# privileged helper's authorization refusals and the translations. The
-# package itself is build-package.yml's. See docs/ci-workflows-audit.md.
+# privileged helper's authorization refusals and the translations.
+#
+# Not run on its own for pushes or pull requests: build-package.yml calls it
+# beside the package, so each push or pull request is one run with both
+# jobs (see docs/ci-workflows-audit.md). A manual run checks any branch.
 
 on:
-  pull_request:
-  push:
-    branches: [main]
+  workflow_call:
   workflow_dispatch:
 
 permissions:
   contents: read
 
-concurrency:
-  group: backend-tests-${{ github.ref }}
-  # A newer commit on a pull request makes the older run moot; every commit
-  # on main keeps its own result.
-  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
-
 jobs:
   rust:
     name: Rust workspace, helper authorization and translations
diff --git a/.github/workflows/build-package.yml b/.github/workflows/build-package.yml
index 02df064..fa500ed 100644
--- a/.github/workflows/build-package.yml
+++ b/.github/workflows/build-package.yml
@@ -1,7 +1,9 @@
 name: Build Package
 
 # Builds the commit under test with pkgbuild/PKGBUILD, in Arch's own
-# container, validates the package and keeps it as an artifact.
+# container, validates the package and keeps it as an artifact. Beside it,
+# backend-tests.yml checks the code: one run per push or pull request, with
+# both jobs.
 #
 # This workflow's success is what the BigLinux package builders act on: when
 # a "Build Package" run of biglinux/bigamemode ends in success, they build
@@ -33,6 +35,11 @@ concurrency:
   cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 jobs:
+  # The code's checks, in parallel with the package. A run is successful,
+  # and so handed to the BigLinux builders, only when both pass.
+  rust:
+    uses: ./.github/workflows/backend-tests.yml
+
   package:
     name: Build and validate the Arch package
     runs-on: ubuntu-24.04
diff --git a/.github/workflows/package-check.yml b/.github/workflows/package-check.yml
index abaa5d3..9935578 100644
--- a/.github/workflows/package-check.yml
+++ b/.github/workflows/package-check.yml
@@ -1,9 +1,10 @@
 name: Package check
 
-# The package build and every check of build-package.yml, for pull requests
-# and manual runs of any branch. Under this name a successful run is not
-# handed to the BigLinux package builders, which act on "Build Package"
-# runs only (see build-package.yml). See docs/ci-workflows-audit.md.
+# Everything build-package.yml runs (the code's checks of backend-tests.yml
+# and the package), for pull requests and manual runs of any branch, as one
+# run. Under this name a successful run is not handed to the BigLinux package
+# builders, which act on "Build Package" runs only (see build-package.yml).
+# See docs/ci-workflows-audit.md.
 
 on:
   pull_request:
@@ -13,5 +14,5 @@ permissions:
   contents: read
 
 jobs:
-  package:
+  check:
     uses: ./.github/workflows/build-package.yml
diff --git a/README.md b/README.md
index 82f205e..7451868 100644
--- a/README.md
+++ b/README.md
@@ -470,20 +470,22 @@ BIGAME_LOCALEDIR=/tmp/bgm-locale LANGUAGE=pt_BR bigame-engine/target/debug/bigam
 template, compiles the catalogues and runs `cargo test --release --frozen
 --workspace` in `check()`.
 
-Two workflows check every pull request (details in
-[`docs/ci-workflows-audit.md`](docs/ci-workflows-audit.md)):
-
-- `.github/workflows/backend-tests.yml`, also on every push to `main`:
-  formatting, Clippy with warnings as errors, the tests, `cargo doc` with
-  warnings as errors, the helper's authorization test as an ordinary user, the
-  translation template and catalogues.
-- `.github/workflows/build-package.yml`, also on every push to `main`,
-  `testing-*` and `stable-*`: a `makepkg` build of that very commit with
-  `pkgbuild/PKGBUILD`, checked with namcap, `desktop-file-validate`,
-  `appstreamcli` and a look at every file it installs; the package is kept as
-  an artifact. A successful run of it is what the BigLinux package builders
-  build. Pull requests run the same build as `package-check.yml`, which is
-  not handed to them.
+One run checks every pull request and every push (details in
+[`docs/ci-workflows-audit.md`](docs/ci-workflows-audit.md)), with two jobs in
+parallel:
+
+- the code (`.github/workflows/backend-tests.yml`): formatting, Clippy with
+  warnings as errors, the tests, `cargo doc` with warnings as errors, the
+  helper's authorization test as an ordinary user, the translation template
+  and catalogues;
+- the package (`.github/workflows/build-package.yml`): a `makepkg` build of
+  that very commit with `pkgbuild/PKGBUILD`, checked with namcap,
+  `desktop-file-validate`, `appstreamcli` and a look at every file it
+  installs; the package is kept as an artifact.
+
+Pushes to `main`, `testing-*` and `stable-*` run as *Build Package*; a
+successful one is what the BigLinux package builders build. Pull requests run
+as *Package check*, which is not handed to them.
 
 ## Author
 
diff --git a/docs/ci-workflows-audit.md b/docs/ci-workflows-audit.md
index aca7c87..ff6c3bd 100644
--- a/docs/ci-workflows-audit.md
+++ b/docs/ci-workflows-audit.md
@@ -56,20 +56,26 @@ outside CI is the test above, in `bigame-core/src/graphics/optiscaler.rs`.
 ## Final architecture
 
 ```text
-pull_request ─┬─► backend-tests ─── rust: fmt · clippy · test · doc · authorization · translations
-push main ────┤
-              │
-              └─► package-check ──┐
-                                   │ workflow_call
-push main,                         ▼
-testing-*, stable-* ──► build-package ─── package: prepare source of $GITHUB_SHA → makepkg -s
-                                              → identify → metadata → contents → desktop
-                                              → AppStream → namcap → SHA256SUMS → artifact
-                           │
-                           └─ a successful "Build Package" run: the BigLinux
-                              builders build its branch
+pull_request ──► "Package check" (package-check.yml) ─┐
+                                                      │ workflow_call
+push main,                                            ▼
+testing-*, stable-* ──► "Build Package" (build-package.yml)
+                         ├─ rust (backend-tests.yml, workflow_call):
+                         │    fmt · clippy · test · doc · authorization · translations
+                         └─ package: prepare source of $GITHUB_SHA → makepkg -s
+                              → identify → metadata → contents → desktop
+                              → AppStream → namcap → SHA256SUMS → artifact
+
+A successful "Build Package" run (both jobs): the BigLinux builders build
+its branch.
 ```
 
+One run per push or pull request, with both jobs in parallel. Until
+2026-10-09 the code's checks were a workflow of their own, so every push
+and pull request showed two runs, and a push to `main` repeated, as two more
+runs, what its pull request had just run. `backend-tests.yml` now only runs
+when called (or by hand).
+
 ## How the BigLinux builders are triggered
 
 The BigLinux builders (GitLab, `gitlab.bigib.org/builder/packagebuilder`)