diff --git a/flake.nix b/flake.nix
index 401d2346..8b615d46 100644
--- a/flake.nix
+++ b/flake.nix
@@ -26,11 +26,12 @@
         };
         build = targets: buildTarget.override { inherit targets; };
       in rec {
-        nim-codex   = build ["all"];
-        default = nim-codex;
+        logos-storage-nim   = build ["all"];
+        libstorage = build ["libstorage"];
+        default = logos-storage-nim;
       });
 
-      nixosModules.nim-codex = { config, lib, pkgs, ... }: import ./nix/service.nix {
+      nixosModules.logos-storage-nim = { config, lib, pkgs, ... }: import ./nix/service.nix {
         inherit config lib pkgs self;
         circomCompatPkg = circom-compat.packages.${pkgs.system}.default;
       };
@@ -40,7 +41,8 @@
       in {
         default = pkgs.mkShell {
           inputsFrom = [
-            packages.${system}.nim-codex
+            packages.${system}.logos-storage-nim
+            packages.${system}.libstorage
             circom-compat.packages.${system}.default
           ];
           # Not using buildInputs to override fakeGit and fakeCargo.
@@ -51,24 +53,24 @@
       checks = forAllSystems (system: let
         pkgs = pkgsFor.${system};
       in {
-        nim-codex-test = pkgs.nixosTest {
-          name = "nim-codex-test";
+        logos-storage-nim-test = pkgs.nixosTest {
+          name = "logos-storage-nim-test";
           nodes = {
             server = { config, pkgs, ... }: {
-              imports = [ self.nixosModules.nim-codex ];
-              services.nim-codex.enable = true;
-              services.nim-codex.settings = {
-                data-dir = "/var/lib/nim-codex-test";
+              imports = [ self.nixosModules.logos-storage-nim ];
+              services.logos-storage-nim.enable = true;
+              services.logos-storage-nim.settings = {
+                data-dir = "/var/lib/logos-storage-nim-test";
               };
-              systemd.services.nim-codex.serviceConfig.StateDirectory = "nim-codex-test";
+              systemd.services.logos-storage-nim.serviceConfig.StateDirectory = "logos-storage-nim-test";
             };
           };
           testScript = ''
-            print("Starting test: nim-codex-test")
+            print("Starting test: logos-storage-nim-test")
             machine.start()
-            machine.wait_for_unit("nim-codex.service")
-            machine.succeed("test -d /var/lib/nim-codex-test")
-            machine.wait_until_succeeds("journalctl -u nim-codex.service | grep 'Started Storage node'", 10)
+            machine.wait_for_unit("logos-storage-nim.service")
+            machine.succeed("test -d /var/lib/logos-storage-nim-test")
+            machine.wait_until_succeeds("journalctl -u logos-storage-nim.service | grep 'Started Storage node'", 10)
           '';
         };
       });
diff --git a/nix/README.md b/nix/README.md
index f389f568..ca3cce64 100644
--- a/nix/README.md
+++ b/nix/README.md
@@ -22,6 +22,12 @@ It can be also done without even cloning the repo:
 nix build 'git+https://github.com/logos-storage/logos-storage-nim?submodules=1#'
 ```
 
+To build the C bindings you can use:
+
+```sh
+nix build ".?submodules=1#libstorage"
+```
+
 ## Running
 
 ```sh
diff --git a/nix/checksums.nix b/nix/checksums.nix
index d79345d2..c9c9f3d4 100644
--- a/nix/checksums.nix
+++ b/nix/checksums.nix
@@ -6,7 +6,7 @@ let
 in pkgs.fetchFromGitHub {
   owner = "nim-lang";
   repo = "checksums";
-  rev = tools.findKeyValue "^ +ChecksumsStableCommit = \"([a-f0-9]+)\"$" sourceFile;
+  rev = tools.findKeyValue "^ +ChecksumsStableCommit = \"([a-f0-9]+)\".*$" sourceFile;
   # WARNING: Requires manual updates when Nim compiler version changes.
-  hash = "sha256-Bm5iJoT2kAvcTexiLMFBa9oU5gf7d4rWjo3OiN7obWQ=";
+  hash = "sha256-JZhWqn4SrAgNw/HLzBK0rrj3WzvJ3Tv1nuDMn83KoYY=";
 }
diff --git a/nix/default.nix b/nix/default.nix
index 3b2d7fad..c5a288d9 100644
--- a/nix/default.nix
+++ b/nix/default.nix
@@ -83,8 +83,14 @@ in pkgs.gcc13Stdenv.mkDerivation rec {
   '';
 
   installPhase = ''
-    mkdir -p $out/bin
-    cp build/storage $out/bin/
+    if [ -f build/storage ]; then
+      mkdir -p $out/bin
+      cp build/storage $out/bin/
+    else
+      mkdir -p $out/lib $out/include
+      cp build/libstorage* $out/lib/
+      cp library/libstorage.h $out/include/
+    fi
   '';
 
   meta = with pkgs.lib; {
@@ -93,4 +99,4 @@ in pkgs.gcc13Stdenv.mkDerivation rec {
     license = licenses.mit;
     platforms = stableSystems;
   };
-}
\ No newline at end of file
+}
diff --git a/nix/nimble.nix b/nix/nimble.nix
index 39c5e0ff..6eb4c8a0 100644
--- a/nix/nimble.nix
+++ b/nix/nimble.nix
@@ -9,5 +9,5 @@ in pkgs.fetchFromGitHub {
   fetchSubmodules = true;
   rev = tools.findKeyValue "^ +NimbleStableCommit = \"([a-f0-9]+)\".+" sourceFile;
   # WARNING: Requires manual updates when Nim compiler version changes.
-  hash = "sha256-Rz48sGUKZEAp+UySla+MlsOfsERekuGKw69Tm11fDz8=";
+  hash = "sha256-wgzFhModFkwB8st8F5vSkua7dITGGC2cjoDvgkRVZMs=";
 }
diff --git a/nix/tools.nix b/nix/tools.nix
index 108d3860..47e99450 100644
--- a/nix/tools.nix
+++ b/nix/tools.nix
@@ -9,7 +9,12 @@ in {
     let
       linesFrom = file: splitString "\n" (fileContents file);
       matching = regex: lines: map (line: match regex line) lines;
-      extractMatch = matches: last (flatten (remove null matches));
+      extractMatch = matches:
+        let xs = flatten (remove null matches);
+        in if xs == [] then
+          throw "findKeyValue: no match for regex '${regex}' in ${toString sourceFile}"
+        else
+          last xs;
     in
       extractMatch (matching regex (linesFrom sourceFile));
 }