feat: use fenix for cargo, add dynamic linking and pkg-config paths

nix/flake.lock

@@ -81,6 +81,27 @@
       },
       "parent": []
     },
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1768632427,
+        "narHash": "sha256-Y6kP10exkn5UiK9ead2Gky8TFsFZSsyT4f69DMKm0Wo=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "edd560269f0d9ad75bd3da292ce4d9d27efdd22a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -189,6 +210,7 @@
     "root": {
       "inputs": {
         "custom-fonts": "custom-fonts",
+        "fenix": "fenix",
         "home-manager": "home-manager",
         "nixos-wsl": "nixos-wsl",
         "nixpkgs": "nixpkgs_2",
@@ -197,6 +219,23 @@
         "status-bar": "status-bar"
       }
     },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1768468158,
+        "narHash": "sha256-DfifO/Se9ogmp5rxe/OwmRIz20/w6BsbWC1s4kL1Bzc=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "adbff8baedae53f9955fe60c0d470ecd77b4f548",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    },
     "sops-nix": {
       "inputs": {
         "nixpkgs": [

nix/flake.nix

@@ -21,6 +21,11 @@
       url = "github:Mic92/sops-nix";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+
+    fenix = {
+      url = "github:nix-community/fenix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs =

nix/modules/commonPackages.nix

@@ -50,7 +50,6 @@
       gnumake
       watchman
       bat
-      rustup
       emote
       pkg-config
       openssl

nix/modules/default.nix

@@ -21,5 +21,6 @@
     ./dns.nix
     ./mounts.nix
     ./nfs-mesh.nix
+    ./rust.nix
   ];
 }

nix/modules/rust.nix

@@ -0,0 +1,41 @@
+{
+  pkgs,
+  lib,
+  config,
+  inputs,
+  ...
+}:
+{
+  options.rust = {
+    enable = lib.mkEnableOption "enable rust" // {
+      default = true;
+    };
+  };
+
+  config = lib.mkIf config.rust.enable {
+    nixpkgs.overlays = [ inputs.fenix.overlays.default ];
+    environment.systemPackages = with pkgs; [
+      (pkgs.fenix.stable.withComponents [
+        "cargo"
+        "clippy"
+        "rust-src"
+        "rustc"
+        "rustfmt"
+      ])
+      openssl
+      pkgconf
+    ];
+    environment.variables = {
+      PKG_CONFIG_PATH =
+        with pkgs;
+        lib.makeSearchPath "/lib/pkgconfig" [
+          openssl.dev
+        ];
+      LD_LIBRARY_PATH = "/run/current-system/sw/share/nix-ld/lib";
+    };
+    programs.nix-ld.libraries = with pkgs; [
+      openssl
+      zlib
+    ];
+  };
+}