feat(gha): tweaks for cross builds. NOTICKET.

Author: brbrown25

.cargo/config.toml

@@ -0,0 +1,5 @@
+# Cargo configuration for cross-compilation
+
+[target.aarch64-unknown-linux-gnu]
+linker = "aarch64-linux-gnu-gcc"
+

.github/workflows/release.yml

@@ -50,6 +50,10 @@ jobs:
             sudo apt-get install -y gcc-aarch64-linux-gnu
           fi
       
+      - name: Install Rust targets
+        run: |
+          rustup target add ${{ matrix.target }}
+      
       - name: Install cross-compilation dependencies (macOS)
         if: matrix.os == 'macos-latest'
         run: |

Makefile

@@ -65,5 +65,12 @@ clean: ## Clean build artifacts
 install-tools: ## Install development tools (cargo-tarpaulin, cargo-watch)
 	$(CARGO) install cargo-tarpaulin cargo-watch
 
+install-targets: ## Install Rust targets for cross-compilation
+	@echo "Installing Rust targets for cross-compilation..."
+	rustup target add x86_64-unknown-linux-musl
+	rustup target add aarch64-unknown-linux-gnu
+	@echo "✅ Targets installed. Note: For cross-compilation from macOS, consider using 'cross' tool."
+	@echo "   Install with: cargo install cross --git https://github.com/cross-rs/cross"
+
 ci: fmt-check lint test ## Run all CI checks (format, lint, test)