update flake.nix to build correctly with all dependencies

flake.nix

@@ -28,13 +28,11 @@
         };
         rust = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain.toml;
 
-        libs = with pkgs; [
+        libPath = with pkgs; lib.makeLibraryPath [
-          libX11
+          fontconfig.dev
-          libXrandr
-          libXinerama
-          libXcursor
-          libXi
           libxkbcommon
+          libGL
+          wayland
         ];
 
       in
@@ -46,11 +44,15 @@
               buildInputs = [
                 rust
                 cargo-nextest
-              ]
+                pkg-config
-              ++ libs;
+                fish
+              ];
+
+              LD_LIBRARY_PATH = "$LD_LIBRARY_PATH:${libPath}";
 
               shellHook = ''
                 echo Entered Rust dev shell for project SoftwareManager-rs
+                exec fish
               '';
             };
         };