diff --git a/.github/workflows/release-production.yml b/.github/workflows/release-production.yml
index 4866ba3f402..8e26450336c 100644
--- a/.github/workflows/release-production.yml
+++ b/.github/workflows/release-production.yml
@@ -397,11 +397,26 @@ jobs:
         with:
           ref: ${{ needs.prepare-build.outputs.build_ref }}
           fetch-depth: 1
-      # Targeted init (not `submodules: true`) so we skip the large tauri-cef
-      # fork the core image doesn't need. The Dockerfile COPYs vendor/ because
-      # [patch.crates-io] resolves Rust SDK crates from vendor/.
+      # Every submodule, not an enumerated subset. The Dockerfile COPYs vendor/
+      # because [patch.crates-io] resolves Rust SDK crates from vendor/, and an
+      # uninitialised submodule is copied in as an EMPTY directory — cargo then
+      # fails on the missing manifest before it compiles anything.
+      #
+      # This used to name eight paths, to skip "the large tauri-cef fork the
+      # core image doesn't need". That fork stopped being a submodule in
+      # `1843706c3 refactor(tauri): replace CEF runtime with upstream Wry`, so
+      # there is nothing left for the list to exclude: all ten entries in
+      # `.gitmodules` are `path` dependencies of the root crate, and cargo reads
+      # every one of their manifests to resolve, `optional` or not. A subset is
+      # therefore always a bug, which is what the list kept producing — it went
+      # stale three times (tinymemory in `54f8710f`, then tinywallet and
+      # tinyhosts together, issue #5594), and each time the breakage surfaced at
+      # RELEASE time rather than in PR CI.
+      #
+      # Enumerating buys nothing once nothing can legitimately be excluded, so
+      # the enumeration is gone rather than corrected a third time.
       - name: Init vendored Rust submodules
-        run: git submodule update --init --recursive vendor/tinyagents vendor/tinyflows vendor/tinycortex vendor/tinychannels vendor/tinyplace vendor/tinyhumans-sdk vendor/tinybus vendor/tinymemory
+        run: git submodule update --init --recursive
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v4
       - name: Log in to GHCR
diff --git a/.github/workflows/release-staging.yml b/.github/workflows/release-staging.yml
index 842a901e952..29057b0578c 100644
--- a/.github/workflows/release-staging.yml
+++ b/.github/workflows/release-staging.yml
@@ -293,11 +293,26 @@ jobs:
         with:
           ref: ${{ needs.prepare-build.outputs.build_ref }}
           fetch-depth: 1
-      # Targeted init (not `submodules: true`) so we skip the large tauri-cef
-      # fork the core image doesn't need. The Dockerfile COPYs vendor/ because
-      # [patch.crates-io] resolves Rust SDK crates from vendor/.
+      # Every submodule, not an enumerated subset. The Dockerfile COPYs vendor/
+      # because [patch.crates-io] resolves Rust SDK crates from vendor/, and an
+      # uninitialised submodule is copied in as an EMPTY directory — cargo then
+      # fails on the missing manifest before it compiles anything.
+      #
+      # This used to name eight paths, to skip "the large tauri-cef fork the
+      # core image doesn't need". That fork stopped being a submodule in
+      # `1843706c3 refactor(tauri): replace CEF runtime with upstream Wry`, so
+      # there is nothing left for the list to exclude: all ten entries in
+      # `.gitmodules` are `path` dependencies of the root crate, and cargo reads
+      # every one of their manifests to resolve, `optional` or not. A subset is
+      # therefore always a bug, which is what the list kept producing — it went
+      # stale three times (tinymemory in `54f8710f`, then tinywallet and
+      # tinyhosts together, issue #5594), and each time the breakage surfaced at
+      # RELEASE time rather than in PR CI.
+      #
+      # Enumerating buys nothing once nothing can legitimately be excluded, so
+      # the enumeration is gone rather than corrected a third time.
       - name: Init vendored Rust submodules
-        run: git submodule update --init --recursive vendor/tinyagents vendor/tinyflows vendor/tinycortex vendor/tinychannels vendor/tinyplace vendor/tinyhumans-sdk vendor/tinybus vendor/tinymemory
+        run: git submodule update --init --recursive
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v4
       - name: Build image (no push)