diff --git a/.gitignore b/.gitignore
index 29296fef..726d2d63 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,2 @@
 result
 .direnv
-
-
-# Added by cargo
-
-/target
diff --git a/backend/.gitignore b/backend/.gitignore
new file mode 100644
index 00000000..41d423bc
--- /dev/null
+++ b/backend/.gitignore
@@ -0,0 +1,2 @@
+# Added by cargo
+/target
diff --git a/Cargo.lock b/backend/Cargo.lock
similarity index 100%
rename from Cargo.lock
rename to backend/Cargo.lock
diff --git a/Cargo.toml b/backend/Cargo.toml
similarity index 100%
rename from Cargo.toml
rename to backend/Cargo.toml
diff --git a/backend/default.nix b/backend/default.nix
new file mode 100644
index 00000000..2a28878d
--- /dev/null
+++ b/backend/default.nix
@@ -0,0 +1,27 @@
+{
+  perSystem = { self', pkgs, lib, ... }:
+    let
+      src = lib.sourceFilesBySuffices ./. [ ".rs" ".toml" "Cargo.lock" ];
+      inherit (lib.importTOML (src + "/Cargo.toml")) package;
+    in
+    {
+      packages = {
+        ${package.name} = pkgs.rustPlatform.buildRustPackage {
+          pname = package.name;
+          inherit (package) version;
+          inherit src;
+          cargoLock.lockFile = (src + "/Cargo.lock");
+        };
+        default = self'.packages.${package.name};
+      };
+
+      devShells.backend = pkgs.mkShell {
+        inherit (package) name;
+        inputsFrom = [ self'.packages.${package.name} ];
+        packages = with pkgs; [
+          rust-analyzer
+          nil
+        ];
+      };
+    };
+}
diff --git a/src/main.rs b/backend/src/main.rs
similarity index 100%
rename from src/main.rs
rename to backend/src/main.rs
diff --git a/flake.nix b/flake.nix
index 17d73ece..76a28664 100644
--- a/flake.nix
+++ b/flake.nix
@@ -9,39 +9,24 @@
   outputs = inputs:
     inputs.flake-parts.lib.mkFlake { inherit inputs; } {
       systems = import inputs.systems;
-      imports = [ inputs.treefmt-nix.flakeModule ];
+      imports = [
+        inputs.treefmt-nix.flakeModule
+        ./backend
+      ];
 
-      perSystem = { self', pkgs, lib, ... }:
-        let
-          src = lib.sourceFilesBySuffices inputs.self [ ".rs" ".toml" "Cargo.lock" ];
-          inherit (lib.importTOML (src + "/Cargo.toml")) package;
-        in
-        {
-          packages = {
-            ${package.name} = pkgs.rustPlatform.buildRustPackage {
-              pname = package.name;
-              inherit (package) version;
-              inherit src;
-              cargoLock.lockFile = (src + "/Cargo.lock");
-            };
-            default = self'.packages.${package.name};
-          };
-
-          devShells.default = pkgs.mkShell {
-            inherit (package) name;
-            inputsFrom = [ self'.packages.${package.name} ];
-            packages = with pkgs; [
-              rust-analyzer
-              nil
-            ];
-          };
+      perSystem = { self', pkgs, lib, ... }: {
+        devShells.default = pkgs.mkShell {
+          inputsFrom = [
+            self'.devShells.backend
+          ];
+        };
 
-          # Run `nix fmt` to format the source tree.
-          treefmt = {
-            projectRootFile = "flake.nix";
-            programs.nixpkgs-fmt.enable = true;
-            programs.rustfmt.enable = true;
-          };
+        # Run `nix fmt` to format the source tree.
+        treefmt = {
+          projectRootFile = "flake.nix";
+          programs.nixpkgs-fmt.enable = true;
+          programs.rustfmt.enable = true;
         };
+      };
     };
 }