diff --git a/.direnv/flake-profile b/.direnv/flake-profile
new file mode 120000
index 0000000..0c05709
--- /dev/null
+++ b/.direnv/flake-profile
@@ -0,0 +1 @@
+flake-profile-1-link
\ No newline at end of file
diff --git a/.direnv/flake-profile-1-link b/.direnv/flake-profile-1-link
new file mode 120000
index 0000000..29533f4
--- /dev/null
+++ b/.direnv/flake-profile-1-link
@@ -0,0 +1 @@
+/nix/store/3s4hkm9s028nb9q2c065pv8q3vbzjzb5-nix-shell-env
\ No newline at end of file
diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..3550a30
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+use flake
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..26811af
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,96 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1741513245,
+        "narHash": "sha256-7rTAMNTY1xoBwz0h7ZMtEcd8LELk9R5TzBPoHuhNSCk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "e3e32b642a31e6714ec1b712de8c91a3352ce7e1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1736320768,
+        "narHash": "sha256-nIYdTAiKIGnFNugbomgBJR+Xv5F1ZQU+HfaBqJKroC0=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "4bc9c909d9ac828a039f288cf872d16d38185db8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1741660300,
+        "narHash": "sha256-0jldJ58sC5RjqwpwE+ER+RPMeX4Moz5im/evQ3SU/dU=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "ac2f556db0eb5cbba3c4f5f5989c46330f439b0b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..49b24aa
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,29 @@
+{
+  description = "CLOVER's Flake";
+
+  inputs = {
+    nixpkgs.url      = "github:NixOS/nixpkgs/nixos-unstable";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    flake-utils.url  = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, rust-overlay, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+        };
+      in
+      {
+        devShells.default = with pkgs; mkShell {
+          buildInputs = [
+            openssl
+            pkg-config
+            rust-bin.nightly.latest.default
+          ];
+        };
+      }
+    );
+}
+
diff --git a/src/lib.rs b/src/lib.rs
index 947e24d..aff44a7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,6 @@
+#![feature(stmt_expr_attributes)]
+#![feature(let_chains)]
+
 pub mod server;
 pub mod arbiter;
 mod utils;