use stdenv.hostPlatform.system instead of deprecated system

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "crane": {
       "locked": {
-        "lastModified": 1779130139,
-        "narHash": "sha256-BLrtr42azquO7MdGFU5a7KiMl3YpFlTeIXqy1fT5GlQ=",
+        "lastModified": 1785520756,
+        "narHash": "sha256-eGUJ3OJ+P4R6x9bN2xx/VTwhrhBt3U0CKtcY/B5xp50=",
         "owner": "ipetkov",
         "repo": "crane",
-        "rev": "edb38893982a3338972bb4a2ec7ce7c29ba10fd9",
+        "rev": "fe4c37e1c9e4d5135a89c7f6a734da02e778c34b",
         "type": "github"
       },
       "original": {
@@ -15,28 +15,13 @@
         "type": "github"
       }
     },
-    "nix-filter": {
-      "locked": {
-        "lastModified": 1757882181,
-        "narHash": "sha256-+cCxYIh2UNalTz364p+QYmWHs0P+6wDhiWR4jDIKQIU=",
-        "owner": "numtide",
-        "repo": "nix-filter",
-        "rev": "59c44d1909c72441144b93cf0f054be7fe764de5",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "nix-filter",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1779622335,
-        "narHash": "sha256-ViA62qtL5za7V3d5I8OA9q9JcFhsVAiL5jVHwEclWqk=",
+        "lastModified": 1785386831,
+        "narHash": "sha256-sPS3CaXH8RAT3FZRuy4VcV47iuYIWMMfa0GbyJKC3o4=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "705e9929918b43bd7b715dc0a878ac870449bb03",
+        "rev": "21ea275a7c46aef9d4d6ddc962e6d562e9d94183",
         "type": "github"
       },
       "original": {
@@ -49,7 +34,6 @@
     "root": {
       "inputs": {
         "crane": "crane",
-        "nix-filter": "nix-filter",
         "nixpkgs": "nixpkgs",
         "treefmt-nix": "treefmt-nix"
       }
@@ -61,11 +45,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1775636079,
-        "narHash": "sha256-pc20NRoMdiar8oPQceQT47UUZMBTiMdUuWrYu2obUP0=",
+        "lastModified": 1785360170,
+        "narHash": "sha256-XE1lKgQ3eIO3E7zWryqcRsax+mYXod/5RHBn4YaR9YE=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "790751ff7fd3801feeaf96d7dc416a8d581265ba",
+        "rev": "d1187f8bc71fb8aab02395869ec3f5c1920f75c0",
         "type": "github"
       },
       "original": {

flake.nix

@@ -3,7 +3,6 @@
 
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-26.05";
-    nix-filter.url = "github:numtide/nix-filter";
     crane.url = "github:ipetkov/crane";
     treefmt-nix = {
       url = "github:numtide/treefmt-nix";
@@ -16,7 +15,6 @@
       self,
       nixpkgs,
       crane,
-      nix-filter,
       treefmt-nix,
     }:
     let
@@ -52,16 +50,7 @@
         let
           craneLib = crane.mkLib pkgs;
           commonArgs = {
-            src = nix-filter.lib.filter {
-              root = ./.;
-              include = [
-                ./Cargo.toml
-                ./Cargo.lock
-                ./src
-                ./README.md
-                ./LICENSE
-              ];
-            };
+            src = craneLib.cleanCargoSource ./.;
             strictDeps = true;
             nativeBuildInputs = with pkgs; [
               pkg-config
@@ -102,7 +91,7 @@
       };
 
       overlays.default = final: prev: {
-        servicepoint-cli = self.legacyPackages."${prev.system}".servicepoint-cli;
+        servicepoint-cli = self.legacyPackages."${prev.stdenv.hostPlatform.system}".servicepoint-cli;
       };
 
       devShells = forAllSystems (