diff --git a/CMakeLists.txt b/CMakeLists.txt
index 036f787..59cffbc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,6 +5,8 @@ set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_C_STANDARD 17)
 
 include(FindPkgConfig)
+include(GNUInstallDirs)
+
 pkg_check_modules(riscv-riscv REQUIRED IMPORTED_TARGET riscv-riscv)
 pkg_check_modules(riscv-fesvr REQUIRED IMPORTED_TARGET riscv-fesvr)
 find_package(spdlog REQUIRED)
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..8b7d64e
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,23 @@
+{ stdenv
+, cmake
+, pkg-config
+, spike
+, mini-gdbstub
+, spdlog
+}: stdenv.mkDerivation {
+  pname = "spike-diff";
+  version = "0.0.1";
+
+  src = ./.;
+
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+    mini-gdbstub
+  ];
+
+  buildInputs = [
+    spike
+    spdlog
+  ];
+}
diff --git a/flake.nix b/flake.nix
index 6632a41..eec6d61 100644
--- a/flake.nix
+++ b/flake.nix
@@ -16,6 +16,23 @@
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs { inherit system; } // nur-xin.packages.${system};
+
+        spike = pkgs.spike.overrideAttrs (self: super: {
+          pname = super.pname + "-rv32e";
+
+          src = pkgs.fetchFromGitHub {
+            owner = "riscv-software-src";
+            repo = "riscv-isa-sim";
+            rev = "2890ea72125b69eb96bb0458a5bbc00ce26e8872";
+            hash = "sha256-gCtTmq4GhxoZit8fqJT0+E4XJiltM2ArlmLkEyJ68vk=";
+          };
+          patches = [ ];
+          configureFlags = [ "--with-isa=RV32E" "--enable-optional-subprojects" ];
+          check = false;
+          doInstallCheck = false;
+        });
+
+        mini-gdbstub = nur-xin.packages.${system}.mini-gdbstub;
       in
       {
         checks = {
@@ -33,6 +50,8 @@
           };
         };
 
+        packages.default = pkgs.callPackage ./default.nix { inherit spike mini-gdbstub; };
+
         devShells.default = (pkgs.mkShell.override { stdenv = pkgs.ccacheStdenv; }) {
           inherit (self.checks.${system}.pre-commit-check) shellHook;
           nativeBuildInputs = self.checks.${system}.pre-commit-check.enabledPackages;
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 23d6f98..7ac15a0 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -7,3 +7,5 @@ target_link_libraries(spike-diff
 
 set_property(TARGET PROPERTY POSITION_INDEPENDENT_CODE ON)
 target_link_options(spike-diff PRIVATE -Wl,-E)
+
+install( TARGETS spike-diff )