feat: project 3

flake.nix

@@ -4,9 +4,13 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
     systems.url = "github:nix-systems/default";
+
+    crane.url = "github:ipetkov/crane";
+    fenix.url = "github:nix-community/fenix";
+    fenix.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = { self, nixpkgs, systems, ... }:
+  outputs = inputs@{ self, nixpkgs, systems, crane, fenix, ... }:
     let
       subdirs = [
         "assignment1"
@@ -14,6 +18,7 @@
         "assignment3"
         "project1"
         "project2"
+        "project3"
       ];
 
       eachSystem = nixpkgs.lib.genAttrs (import systems);
@@ -23,7 +28,7 @@
         in pkgs.lib.mergeAttrsList
           (builtins.map (d:
             builtins.mapAttrs
-              (_: v: pkgs.callPackage v {})
+              (_: v: pkgs.callPackage v { inherit inputs; })
               (import ./${d}/${file}))
             subdirs));
     in {
@@ -33,7 +38,7 @@
       devShells = eachSystem (system:
         let pkgs = nixpkgs.legacyPackages.${system};
         in {
-          default = pkgs.callPackage ./shell.nix {};
+          default = import ./shell.nix { inherit pkgs crane fenix; };
         });
     };
 }