diff --git a/REUSE.toml b/REUSE.toml
index 00d4486..d951b24 100644
--- a/REUSE.toml
+++ b/REUSE.toml
@@ -6,6 +6,7 @@ path = [
     ".github/workflows/**/",
     ".gitignore",
     ".gitmodules",
+    "audit/**/",
     "README.md",
     "flake.lock",
     "flake.nix",
diff --git a/audit/protofire.rain.sol.codegen.feb-2026.pdf b/audit/protofire.rain.sol.codegen.feb-2026.pdf
new file mode 100644
index 0000000..b331280
Binary files /dev/null and b/audit/protofire.rain.sol.codegen.feb-2026.pdf differ
diff --git a/flake.lock b/flake.lock
index 9a12e0c..b88de52 100644
--- a/flake.lock
+++ b/flake.lock
@@ -175,11 +175,11 @@
         "solc": "solc"
       },
       "locked": {
-        "lastModified": 1769366341,
-        "narHash": "sha256-jeYOweTuJdKshW9lqVoNxvl4+flyRzWxEctRGabTW/8=",
+        "lastModified": 1770274701,
+        "narHash": "sha256-00kymonJVHUtCBBaXMqmVF3b78dtDdXJg8K7P2U9lbA=",
         "owner": "rainprotocol",
         "repo": "rainix",
-        "rev": "e7bfe9c39d2de818eac241f88ecabc69e86ed734",
+        "rev": "51c1c74a0e6bc5c49336b02ef97684d01e1e8ad4",
         "type": "github"
       },
       "original": {