flake: a mixture of hotfixes and updates

README.md

@@ -13,7 +13,7 @@ Nintendo GameBoy Advance™ emulator and debugger, written in Rust.
 The file at [`external/gamecontrollerdb.txt`](./external/gamecontrollerdb.txt) is not my work - it is sourced from [this GitHub repository](https://github.com/mdqinc/SDL_GameControllerDB) and covered by the appropriate license present in said repository.
 
 ## Usage
-You will need to specify the BIOS file to run with, using the `--bios` command-line argument. Note that there is such a BIOS ROM present in this directory at [`./external/gba_bios.bin`](./external/gba_bios.bin)
+You will need to specify the BIOS file to run with, using the `--bios` command-line argument. Note that there is such a BIOS ROM present in this directory at [`./external/gba_bios.bin`](./external/gba_bios.bin).
 
 ## Key bindings
 GBA key bindings:

flake.nix

@@ -1,11 +1,7 @@
 {
-  description = "Rust development environment for oxitoko using fenix";
+  description = "Rust development environment for rustboyadvance-ng";
 
   inputs = {
-    fenix = {
-      url = "github:nix-community/fenix";
-      inputs.nixpkgs.follows = "nixpkgs-unstable";
-    };
     utils.url = "github:numtide/flake-utils";
     nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
   };
@@ -14,26 +10,17 @@
     self,
     nixpkgs-unstable,
     utils,
-    fenix,
     ...
   }:
     utils.lib.eachDefaultSystem
     (
       system: let
-        pkgs = import nixpkgs-unstable {
-          inherit system;
-          overlays = [fenix.overlays.default];
-        };
-        toolchain = pkgs.fenix.complete;
+        pkgs = import nixpkgs-unstable { inherit system; };
         dependencies = with pkgs; [ SDL2 SDL2_image ];
       in rec
       {
         # Executed by `nix build`
-        packages.default =
-          (pkgs.makeRustPlatform {
-            inherit (toolchain) cargo rustc;
-          })
-          .buildRustPackage {
+        packages.default = pkgs.rustPlatform.buildRustPackage {
           pname = "rustboyadvance-ng";
           name = "rustboyadvance-ng";
           src = ./.;
@@ -46,19 +33,10 @@
           };
           buildInputs = dependencies;
         };
-
         # Executed by `nix run`
         apps.default = utils.lib.mkApp {drv = packages.default;};
-
         # Used by `nix develop`
-        devShells.default = pkgs.mkShell rec {
-          buildInputs = with pkgs; [
-            (with toolchain; [
-              cargo rustc rust-src clippy rustfmt # rust components
-            ])
-          ] ++ dependencies;
-          RUST_SRC_PATH = "${toolchain.rust-src}/lib/rustlib/src/rust/library";
-        };
+        devShells.default = pkgs.mkShell rec { buildInputs = dependencies; };
       }
     );
 }