diff --git a/flake.lock b/flake.lock
index 8376166..36e9580 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,26 +1,5 @@
 {
   "nodes": {
-    "fenix": {
-      "inputs": {
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "rust-analyzer-src": "rust-analyzer-src"
-      },
-      "locked": {
-        "lastModified": 1658644019,
-        "narHash": "sha256-P4ZEkrJSvtiBVnXZUagg6QtiVRc6k9XgTbWLZ7Q73Ow=",
-        "owner": "nix-community",
-        "repo": "fenix",
-        "rev": "a844a251dcd8aac45d47a81adae6117ff4f57b8d",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "fenix",
-        "type": "github"
-      }
-    },
     "naersk": {
       "inputs": {
         "nixpkgs": [
@@ -43,45 +22,26 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1658644204,
-        "narHash": "sha256-MWyfCH9K3eVTXJUxBi67OQSAh9jJAnvWklM6qm4j8w8=",
+        "lastModified": 1664281702,
+        "narHash": "sha256-haixZ4TJLu1Dciow54wrHrHvlGDVr5sW6MTeAV/ZLuI=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "2f0c3be57c348f4cfd8820f2d189e29a685d9c41",
+        "rev": "7e52b35fe98481a279d89f9c145f8076d049d2b9",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixpkgs-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "root": {
       "inputs": {
-        "fenix": "fenix",
         "naersk": "naersk",
         "nixpkgs": "nixpkgs",
         "utils": "utils"
       }
     },
-    "rust-analyzer-src": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1658612252,
-        "narHash": "sha256-mO2M5pgrkxjSURWILT91w+ChkQ3mU+oOpdxF+yFaBEc=",
-        "owner": "rust-lang",
-        "repo": "rust-analyzer",
-        "rev": "977e12a0bdc3e329af179ef3a9d466af9eb613bb",
-        "type": "github"
-      },
-      "original": {
-        "owner": "rust-lang",
-        "ref": "nightly",
-        "repo": "rust-analyzer",
-        "type": "github"
-      }
-    },
     "utils": {
       "locked": {
         "lastModified": 1656928814,
diff --git a/flake.nix b/flake.nix
index 4c7d731..801478d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,15 +1,11 @@
 {
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "github:nixos/nixpkgs";
     utils.url = "github:numtide/flake-utils";
     naersk = {
       url = "github:nix-community/naersk";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    fenix = {
-      url = "github:nix-community/fenix";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
   };
 
   outputs = {
@@ -17,21 +13,11 @@
     nixpkgs,
     utils,
     naersk,
-    fenix,
+    ...
   }:
     utils.lib.eachDefaultSystem (system: let
         pkgs = nixpkgs.legacyPackages."${system}";
-        toolchain = with fenix.packages."${system}";
-          combine [
-            minimal.rustc
-            minimal.cargo
-            targets.x86_64-pc-windows-gnu.latest.rust-std
-            targets.x86_64-unknown-linux-gnu.latest.rust-std
-          ];
-        naersk-lib = naersk.lib."${system}".override {
-          cargo = toolchain;
-          rustc = toolchain;
-        };
+        naersk-lib = naersk.lib."${system}";
       in rec
       {
         packages.malachite = naersk-lib.buildPackage {
@@ -39,32 +25,9 @@
           root = ./.;
         };
 
-        packages.malachite-win = naersk-lib.buildPackage {
-          pname = "Malachite";
-          root = ./.;
-          strictDeps = true;
-          depsBuildBuild = with pkgs; [
-            pkgsCross.mingwW64.stdenv.cc
-            pkgsCross.mingwW64.windows.pthreads
-          ];
-          nativeBuildInputs = with pkgs; [
-            (
-              if system == "x86_64-linux"
-              then wineWowPackages.stable
-              else hello
-            )
-          ];
-          CARGO_BUILD_TARGET = "x86_64-pc-windows-gnu";
-          CARGO_TARGET_X86_64_PC_WINDOWS_GNU_RUNNER = pkgs.writeScript "wine-wrapper" ''
-            export WINEPREFIX="$(mktemp -d)"
-            exec wine64 $@
-          '';
-          doCheck = true;
-        };
-
         packages.default = packages.malachite;
 
-        apps.apod = utils.lib.mkApp {
+        apps.malachite = utils.lib.mkApp {
           drv = packages.malachite;
         };
 
@@ -77,9 +40,17 @@
             cargo-audit
             rustfmt
             clippy
+            rust-analyzer
+
+            # For `alpm` libs
+            pkg-config
+            pacman
+            openssl
           ];
+          # For rust-analyzer
+          RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
         };
 
         formatter = pkgs.alejandra;
       });
-}
+}
\ No newline at end of file