Add build and make scripts

Makefile

@@ -0,0 +1,38 @@
+# Makefile
+
+# Project name / binary name
+BINARY_NAME := cloudcover
+
+# Default target
+all: build
+
+# Run go app from CLI
+run:
+	go run .
+
+install-linux:
+	sudo apt install libopencv-dev
+
+install-macos:
+	brew install opencv
+
+# Build for the host system
+build:
+	go build -o build/$(BINARY_NAME) .
+
+# Cross-compile for macOS ARM64
+build-macos-arm64:
+	GOOS=darwin GOARCH=arm64 go build -o build/$(BINARY_NAME)-macos-arm64 .
+
+# Cross-compile for Linux AMD64
+build-linux-amd64:
+	GOOS=linux GOARCH=amd64 go build -o build/$(BINARY_NAME)-linux-amd64 .
+
+# Build all targets
+build-all: build-macos-arm64 build-linux-amd64
+
+# Clean build artifacts
+clean:
+	rm -rf build
+
+.PHONY: all build build-macos-arm64 build-linux-amd64 build-all clean