RGB-Tools · bitwalt · Aug 7, 2026 · Aug 12, 2026
diff --git a/.github/workflows/interoperability.yaml b/.github/workflows/interoperability.yaml
@@ -0,0 +1,31 @@
+name: Run interoperability tests
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  interoperability:
+    runs-on: ubuntu-latest
+    timeout-minutes: 60
+    steps:
+      - uses: actions/checkout@v6
+        with:
+          submodules: true
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: stable
+          rustflags: ""
+      # the fixture pulls in a full stock LDK dependency tree, so it's cached on its own lockfile
+      - name: Cache the stock ldk-node fixture
+        uses: actions/cache@v4
+        with:
+          path: target/interoperability
+          key: ldk-node-fixture-${{ hashFiles('src/test/interoperability/ldk-node/Cargo.lock') }}
+      - name: Interoperability tests
+        run: cargo test interoperability -- --ignored --test-threads=1
diff --git a/.gitmodules b/.gitmodules
@@ -1,5 +1,5 @@
 [submodule "rust-lightning"]
 	path = rust-lightning
-	url = https://github.com/RGB-Tools/rust-lightning.git
-	branch = rgb
+	url = https://github.com/bitwalt/rust-lightning.git
+	branch = rgb-stock-ldk-interop
 	shallow = true
diff --git a/rust-lightning b/rust-lightning
diff --git a/src/test/interoperability/ldk-node/.gitignore b/src/test/interoperability/ldk-node/.gitignore
@@ -0,0 +1 @@
+/target
+2 −4		lightning/src/ln/chan_utils.rs
+14 −14		lightning/src/ln/channel.rs
+1 −1		lightning/src/ln/htlc_reserve_unit_tests.rs
+13 −6		lightning/src/ln/msgs.rs
+20 −2		lightning/src/rgb_utils/mod.rs
+26 −8		lightning/src/sign/tx_builder.rs