fixup: Update to use avalanchego's golang flake for 1.24.8

Author: maru-ava

ffi/flake.lock

@@ -12,15 +12,18 @@
     rust-overlay.url = "github:oxalica/rust-overlay";
     crane.url = "github:ipetkov/crane";
     flake-utils.url = "github:numtide/flake-utils";
+    golang.url = "github:ava-labs/avalanchego?dir=nix/go&ref=edf67505fee7c95837c2220467de86fea0efc860";
   };
 
-  outputs = { self, nixpkgs, rust-overlay, crane, flake-utils }:
+  outputs = { self, nixpkgs, rust-overlay, crane, flake-utils, golang }:
     flake-utils.lib.eachDefaultSystem (system:
     let
       overlays = [ (import rust-overlay) ];
       pkgs = import nixpkgs { inherit system overlays; };
       inherit (pkgs) lib;
 
+      go = golang.packages.${system}.default;
+
       rustToolchain = pkgs.rust-bin.stable.latest.default.override {
         extensions = [ "rust-src" "rustfmt" "clippy" ];
       };
@@ -82,7 +85,7 @@
 
           # Run go generate to switch CGO directives to STATIC_LIBS mode
           cd $out/ffi
-          HOME=$TMPDIR GOTOOLCHAIN=local FIREWOOD_LD_MODE=STATIC_LIBS ${pkgs.go}/bin/go generate
+          HOME=$TMPDIR GOTOOLCHAIN=local FIREWOOD_LD_MODE=STATIC_LIBS ${go}/bin/go generate
         '';
 
         meta = with lib; {
@@ -104,7 +107,7 @@
 
       apps.go = {
         type = "app";
-        program = "${pkgs.go}/bin/go";
+        program = "${go}/bin/go";
       };
 
       devShells.default = craneLib.devShell {

ffi/flake.nix

@@ -2,6 +2,11 @@ module github.com/ava-labs/firewood/ffi
 
 go 1.24
 
+// Changes to the toolchain version should be replicated in:
+//   - ffi/go.mod (here)
+//   - ffi/flake.nix (update golang.url to a version of avalanchego's nix/go/flake.nix that uses the desired version)
+//   - ffi/tests/eth/go.mod
+//   - ffi/tests/firewood/go.mod
 toolchain go1.24.8
 
 require (