fixup! build: add a simple nix dev shell

Signed-off-by: Vincenzo Palazzo <[email protected]>

contrib/nix/default.nix

@@ -2,39 +2,48 @@ let
   # Import nixpkgs
   # To see why this is required please look at
   # https://discourse.nixos.org/t/nix-consumes-all-available-memory-evaluating-a-flake-using-recent-nixpkgs/33322
-  pkgs = import (builtins.fetchTarball {
-    # Descriptive name to make the store path easier to identify
-    name = "nixpkgs-23.05";
-    # Commit hash for nixos-unstable as of 2018-09-12
-    url = "https://github.com/NixOS/nixpkgs/archive/refs/tags/23.05.tar.gz";
-    # Hash obtained using `nix-prefetch-url --unpack <url>`
-    sha256 = "10wn0l08j9lgqcw8177nh2ljrnxdrpri7bp0g7nvrsn9rkawvlbf";
+  pkgs = import (fetchTarball {
+    url =
+      "https://github.com/NixOS/nixpkgs/archive/3476a10478587dec90acb14ec6bde0966c545cc0.tar.gz";
   }) { };
-
-  # Import poetry2nix and its functions
-  poetry2nixSrc = pkgs.fetchFromGitHub {
-    owner = "nix-community";
-    repo = "poetry2nix";
-    rev = "e23218d1599e3369dfc878757e58974017e0ecc8"; # Fetch the latest master
-    sha256 = "sha256-p6niqag7b4XEHvzWgG0X/xjoW/ZXbAxW8ggd8yReT3Y=";
-  };
-
-  poetry2nix = import poetry2nixSrc { };
+  poetry2nix = pkgs.poetry2nix;
 
   # Create a Python environment using poetry2nix
   finalEnv = poetry2nix.mkPoetryEnv {
     python = pkgs.python310;
     projectDir = ../../.;
     poetrylock = ../../poetry.lock; # Path to your poetry.lock file
     overrides = poetry2nix.overrides.withDefaults (self: super: {
+      cryptography = super.cryptography.overrideAttrs (oldAttrs: rec {
+        version = "41.0.4";
+        src = pkgs.fetchurl {
+          url =
+            "https://pypi.io/packages/source/c/cryptography/cryptography-${version}.tar.gz";
+          sha256 = "sha256-f+vDCUEl/BJqf2+x9CDQ2mOfPzLLFcj/DcOZfEVJ9Ro=";
+        };
+
+        cargoDeps = pkgs.rustPlatform.fetchCargoTarball {
+          inherit src;
+          sourceRoot = "${oldAttrs.pname}-${version}/src/rust";
+          name = "${oldAttrs.pname}-${version}";
+          hash = "sha256-oXR8yBUgiA9BOfkZKBJneKWlpwHB71t/74b/5WpiKmw=";
+        };
+
+        # cryptography-vectors is in a let so it's not easy to override
+        # AssertionError: assert '41.0.4' == '41.0.3'
+        doCheck = false;
+      });
+
       attrs = super.attrs.overridePythonAttrs (old: {
         buildInputs = old.buildInputs or [ ]
           ++ [ self.wheel self.hatch-vcs self.hatch-fancy-pypi-readme ];
       });
+
       protobuf3 = super.protobuf3.overridePythonAttrs (old: {
         buildInputs = old.buildInputs or [ ]
           ++ [ super.setuptools super.wheel ];
       });
+
       werkzeug = super.werkzeug.overridePythonAttrs
         (old: { buildInputs = old.buildInputs or [ ] ++ [ self.flit-core ]; });
 
@@ -67,14 +76,6 @@ let
         buildInputs = old.buildInputs or [ ] ++ [ self.setuptools self.wheel ];
       });
 
-      cryptography = super.cryptography.overrideAttrs (oldAttrs: {
-        src = pkgs.fetchurl {
-          url =
-            "https://pypi.io/packages/source/c/cryptography/cryptography-41.0.4.tar.gz";
-          sha256 = "oXR8yBUgiA9BOfkZKBJneKWlpwHB71t/74b/5WpiKmw=";
-        };
-      });
-
       rpds-py = super.rpds-py.overrideAttrs (old: {
         src = pkgs.fetchurl {
           url =