feat: use golang 1.25.0

default.nix

@@ -2,6 +2,7 @@
   lib,
   stdenv,
   buildGoApplication,
+  go,
   nix-gitignore,
   coverage ? false, # https://tip.golang.org/doc/go1.20#cover
   rocksdb,
@@ -39,6 +40,7 @@ buildGoApplication rec {
     tags
     ldflags
     ;
+  inherit go;
   src = (
     nix-gitignore.gitignoreSourcePure [
       "/*" # ignore all, then add whitelists
@@ -55,6 +57,7 @@ buildGoApplication rec {
     ] ./.
   );
   modules = ./gomod2nix.toml;
+  modRoot = ".";
   pwd = src; # needed to support replace
   subPackages = [ "cmd/cronosd" ];
   buildFlags = lib.optionalString coverage "-cover";

flake.nix

@@ -1,6 +1,6 @@
 {
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/release-24.11";
+    nixpkgs.url = "github:NixOS/nixpkgs/release-25.11";
     flake-utils.url = "github:numtide/flake-utils";
     nix-bundle-exe = {
       url = "github:3noch/nix-bundle-exe";
@@ -29,6 +29,19 @@
     }:
     let
       rev = self.shortRev or "dirty";
+      gomodOverlay =
+        final: prev:
+        let
+          gomodSrc = gomod2nix.outPath;
+          callPackage = final.callPackage;
+        in
+        {
+          inherit (callPackage "${gomodSrc}/builder" { }) buildGoApplication mkGoEnv mkVendorEnv;
+          gomod2nix =
+            (callPackage "${gomodSrc}/default.nix" { }).overrideAttrs (_: {
+              modRoot = ".";
+            });
+        };
       mkApp = drv: {
         type = "app";
         program = "${drv}/bin/${drv.meta.mainProgram}";
@@ -77,20 +90,21 @@
       }
     ))
     // {
-      overlays.default = [
-        (import ./nix/build_overlay.nix)
-        poetry2nix.overlays.default
-        gomod2nix.overlays.default
-        (import ./testground/benchmark/overlay.nix)
-        (final: super: {
-          go = super.go_1_23;
-          test-env = final.callPackage ./nix/testenv.nix { };
-          cronos-matrix = final.callPackage ./nix/cronos-matrix.nix {
-            inherit rev;
-            bundle-exe = final.pkgsBuildBuild.callPackage nix-bundle-exe { };
-          };
-          testground-image = final.callPackage ./nix/testground-image.nix { };
-        })
-      ];
+      overlays.default =
+        [
+          (import ./nix/build_overlay.nix)
+          poetry2nix.overlays.default
+          gomodOverlay
+          (import ./testground/benchmark/overlay.nix)
+          (final: super: {
+            go = super.go_1_25;
+            test-env = final.callPackage ./nix/testenv.nix { };
+            cronos-matrix = final.callPackage ./nix/cronos-matrix.nix {
+              inherit rev;
+              bundle-exe = final.pkgsBuildBuild.callPackage nix-bundle-exe { };
+            };
+            testground-image = final.callPackage ./nix/testground-image.nix { };
+          })
+        ];
     };
 }

nix/build_overlay.nix

@@ -9,11 +9,11 @@ let
     if len == 0 then [ ] else final.lib.lists.take (len - 1) l ++ [ newVal ];
 in
 {
-  go_1_23 = super.go_1_23.overrideAttrs (old: rec {
-    version = "1.23.12";
+  go_1_25 = super.go_1_25.overrideAttrs (old: rec {
+    version = "1.25.0";
     src = final.fetchurl {
       url = "https://go.dev/dl/go${version}.src.tar.gz";
-      hash = "sha256-4czpN5ok6JVxSkEsfd0VfSYU2e2+g6hESbbhhAtPEiY=";
+      hash = "sha256-S9AekSlyB7+kUOpA1NWpOxtTGl5DhHOyoG4Y4HciciU=";
     };
   });
   rocksdb = final.callPackage ./rocksdb.nix { };

nix/default.nix

@@ -11,17 +11,30 @@ import sources.nixpkgs {
       dapptools-master = sources.dapptools-master;
     })
     (_: pkgs: {
-      go = pkgs.go_1_23;
+      go = pkgs.go_1_25;
       go-ethereum = pkgs.callPackage ./go-ethereum.nix {
         inherit (pkgs.darwin) libobjc;
         inherit (pkgs.darwin.apple_sdk.frameworks) IOKit;
-        buildGoModule = pkgs.buildGo123Module;
+        buildGoModule = pkgs.buildGoModule;
       };
       flake-compat = import sources.flake-compat;
       chain-maind = pkgs.callPackage sources.chain-main { rocksdb = null; };
     }) # update to a version that supports eip-1559
     (import "${sources.poetry2nix}/overlay.nix")
-    (import "${sources.gomod2nix}/overlay.nix")
+    (
+      final: prev:
+      let
+        gomodSrc = sources.gomod2nix;
+        callPackage = final.callPackage;
+      in
+      {
+        inherit (callPackage "${gomodSrc}/builder" { }) buildGoApplication mkGoEnv mkVendorEnv;
+        gomod2nix =
+          (callPackage "${gomodSrc}/default.nix" { }).overrideAttrs (_: {
+            modRoot = ".";
+          });
+      }
+    )
     (
       pkgs: _:
       import ./scripts.nix {
@@ -65,7 +78,7 @@ import sources.nixpkgs {
     (_: pkgs: { test-env = pkgs.callPackage ./testenv.nix { }; })
     (_: pkgs: { cosmovisor = pkgs.callPackage ./cosmovisor.nix { }; })
     (_: pkgs: {
-      rly = pkgs.buildGo123Module rec {
+      rly = pkgs.buildGoModule rec {
         name = "rly";
         src = sources.relayer;
         subPackages = [ "." ];

nix/golangci-lint.nix

@@ -1,11 +1,12 @@
 {
-  buildGo123Module,
+  buildGoModule,
   fetchFromGitHub,
   lib,
   installShellFiles,
+  go_1_25,
 }:
 
-buildGo123Module rec {
+(buildGoModule.override { go = go_1_25; }) rec {
   pname = "golangci-lint";
   version = "2.1.6";
 

nix/sources.json

@@ -98,15 +98,15 @@
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "nixpkgs": {
-        "branch": "release-24.11",
+        "branch": "release-25.11",
         "description": "Nix Packages collection",
         "homepage": "",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "112c247873ba67732a9dd2563cb3d7b7749a82df",
-        "sha256": "00ghsa6842lkd0c0k0ln6531inq03y4m0nphczwnhf5n9g72sddh",
+        "rev": "f27d6578053dfba71ffe5156a8274a552340b730",
+        "sha256": "1bbm0v081qih6ksqjdqisw452wky8jzx5yi961m0w2vfy3zaqmhb",
         "type": "tarball",
-        "url": "https://github.com/NixOS/nixpkgs/archive/112c247873ba67732a9dd2563cb3d7b7749a82df.tar.gz",
+        "url": "https://github.com/NixOS/nixpkgs/archive/f27d6578053dfba71ffe5156a8274a552340b730.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "poetry2nix": {