Add Nix dev shell

Also change go version in current CI jobs to match the go version the nix shell would be using

Co-Authored-By: stringintech <[email protected]>

Author: starius

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: '1.23.3'
+        go-version: '1.23.12'
 
     - name: Install Boost library
       run: |
@@ -46,7 +46,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.23.3'
+          go-version: '1.23.12'
 
       - name: Install Boost library
         run: |
@@ -86,7 +86,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.23.3'
+          go-version: '1.23.12'
 
       - name: Build Kernel
         run: make build-kernel

README.md

@@ -44,7 +44,9 @@ This command will configure Bitcoin Core's CMake build system and statically com
 [macOS](./depend/bitcoin/doc/build-osx.md),
 [Windows](./depend/bitcoin/doc/build-windows.md))
 
-**Addtional note for Windows:** MinGW toolchain is required. CGo uses GCC on Windows, so static linking requires the library to be compiled with GCC/MinGW rather than MSVC for ABI compatibility.
+**Additional notes:**
+- **For Windows:** MinGW toolchain is required. CGo uses GCC on Windows, so static linking requires the library to be compiled with GCC/MinGW rather than MSVC for ABI compatibility.
+- **For Nix users:** Run `nix develop` to automatically get all the build and runtime dependencies, then run `make build-kernel` and continue with the remaining steps in the Nix dev shell.
 
 ### Step 3: Run Tests
 

flake.lock

@@ -0,0 +1,30 @@
+{
+  description = "go-bitcoinkernel";
+
+  inputs = {
+    nixpkgs.url = "nixpkgs/nixos-25.05";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+        };
+        nativeDeps = with pkgs; [
+          cmake
+          go_1_23
+          golangci-lint
+        ];
+        runtimeDeps = with pkgs; [
+          boost
+        ];
+      in
+      {
+        devShells.default = pkgs.mkShell {
+          nativeBuildInputs = nativeDeps;
+          buildInputs = runtimeDeps;
+        };
+      });
+}