chore(nix): drop flake-parts

The primary goals here include making the flake easier to contribute to
by having it follow the standard boilerplate, while also limiting the
size of our flake.lock to lower the chance of duplicate inputs for users

Signed-off-by: seth <getchoo@tuta.io>

flake.lock

@@ -16,26 +16,6 @@
         "type": "github"
       }
     },
-    "flake-parts": {
-      "inputs": {
-        "nixpkgs-lib": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1722555600,
-        "narHash": "sha256-XOQkdLafnb/p9ij77byFQjDf5m5QYl9b2REiVClC+x4=",
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "rev": "8471fe90ad337a8074e957b69ca4d0089218391d",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "type": "github"
-      }
-    },
     "libnbtplusplus": {
       "flake": false,
       "locked": {
@@ -71,7 +51,6 @@
     "root": {
       "inputs": {
         "flake-compat": "flake-compat",
-        "flake-parts": "flake-parts",
         "libnbtplusplus": "libnbtplusplus",
         "nixpkgs": "nixpkgs"
       }

flake.nix

@@ -8,10 +8,7 @@
 
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-    flake-parts = {
-      url = "github:hercules-ci/flake-parts";
-      inputs.nixpkgs-lib.follows = "nixpkgs";
-    };
+
     libnbtplusplus = {
       url = "github:PrismLauncher/libnbtplusplus";
       flake = false;
@@ -39,18 +36,64 @@
   };
 
   outputs =
-    inputs:
-    inputs.flake-parts.lib.mkFlake { inherit inputs; } {
-      imports = [
-        ./nix/dev.nix
-        ./nix/distribution.nix
-      ];
+    {
+      self,
+      nixpkgs,
+      libnbtplusplus,
+      ...
+    }:
+    let
+      inherit (nixpkgs) lib;
 
-      systems = [
-        "x86_64-linux"
-        "aarch64-linux"
-        "x86_64-darwin"
-        "aarch64-darwin"
+      # While we only officially support aarch and x86_64 on Linux and MacOS,
+      # we expose a reasonable amount of other systems for users who want to
+      # build for most exotic platforms
+      systems = lib.systems.flakeExposed;
+
+      forAllSystems = lib.genAttrs systems;
+      nixpkgsFor = forAllSystems (system: nixpkgs.legacyPackages.${system});
+    in
+    {
+      devShells = forAllSystems (
+        system:
+        let
+          pkgs = nixpkgsFor.${system};
+        in
+        {
+          default = pkgs.mkShell {
+            inputsFrom = [ self.packages.${system}.prismlauncher-unwrapped ];
+            buildInputs = with pkgs; [
+              ccache
+              ninja
             ];
           };
         }
+      );
+
+      formatter = forAllSystems (system: nixpkgsFor.${system}.nixfmt-rfc-style);
+
+      overlays.default =
+        final: prev:
+        let
+          version = builtins.substring 0 8 self.lastModifiedDate or "dirty";
+        in
+        {
+          prismlauncher-unwrapped = prev.callPackage ./nix/unwrapped.nix { inherit libnbtplusplus version; };
+
+          prismlauncher = final.callPackage ./nix/wrapper.nix { };
+        };
+
+      packages = forAllSystems (
+        system:
+        let
+          pkgs = nixpkgsFor.${system};
+
+          prismPackages = lib.makeScope pkgs.newScope (final: self.overlays.default final pkgs);
+        in
+        {
+          inherit (prismPackages) prismlauncher-unwrapped prismlauncher;
+          default = prismPackages.prismlauncher;
+        }
+      );
+    };
+}

nix/README.md

@@ -44,11 +44,14 @@ Example:
       # Optional: Override the nixpkgs input of prismlauncher to use the same revision as the rest of your flake
       # Note that overriding any input of prismlauncher may break reproducibility
       # inputs.nixpkgs.follows = "nixpkgs";
+
+      # This is not required for Flakes
+      inputs.flake-compat.follows = "";
     };
   };
 
   outputs =
-    { nixpkgs, prismlauncher }:
+    { nixpkgs, prismlauncher, ... }:
     {
       nixosConfigurations.foo = nixpkgs.lib.nixosSystem {
         modules = [
@@ -85,11 +88,14 @@ Example:
       # Optional: Override the nixpkgs input of prismlauncher to use the same revision as the rest of your flake
       # Note that overriding any input of prismlauncher may break reproducibility
       # inputs.nixpkgs.follows = "nixpkgs";
+
+      # This is not required for Flakes
+      inputs.flake-compat.follows = "";
     };
   };
 
   outputs =
-    { nixpkgs, prismlauncher }:
+    { nixpkgs, prismlauncher, ... }:
     {
       nixosConfigurations.foo = nixpkgs.lib.nixosSystem {
         modules = [

nix/dev.nix

@@ -1,15 +0,0 @@
-{
-  perSystem =
-    { pkgs, self', ... }:
-    {
-      devShells.default = pkgs.mkShell {
-        inputsFrom = [ self'.packages.prismlauncher-unwrapped ];
-        buildInputs = with pkgs; [
-          ccache
-          ninja
-        ];
-      };
-
-      formatter = pkgs.nixfmt-rfc-style;
-    };
-}

nix/distribution.nix

@@ -1,31 +0,0 @@
-{ inputs, self, ... }:
-{
-  perSystem =
-    { lib, pkgs, ... }:
-    {
-      packages =
-        let
-          ourPackages = lib.makeScope pkgs.newScope (final: self.overlays.default final pkgs);
-        in
-        {
-          inherit (ourPackages) prismlauncher-unwrapped prismlauncher;
-          default = ourPackages.prismlauncher;
-        };
-    };
-
-  flake = {
-    overlays.default =
-      final: prev:
-      let
-        version = builtins.substring 0 8 self.lastModifiedDate or "dirty";
-      in
-      {
-        prismlauncher-unwrapped = prev.callPackage ./pkg {
-          inherit (inputs) libnbtplusplus;
-          inherit version;
-        };
-
-        prismlauncher = final.callPackage ./pkg/wrapper.nix { };
-      };
-  };
-}

nix/unwrapped.nix

@@ -28,9 +28,9 @@ stdenv.mkDerivation {
   inherit version;
 
   src = lib.fileset.toSource {
-    root = ../../.;
+    root = ../.;
     fileset = lib.fileset.unions (
-      map (fileName: ../../${fileName}) [
+      map (fileName: ../${fileName}) [
         "buildconfig"
         "cmake"
         "launcher"