build: add automation commands

.gitignore

@@ -1,5 +1,6 @@
 lib/
 app/
+build/
 downloads/
 Unknown/
 

justfile

@@ -0,0 +1,45 @@
+_default: 
+	@just --list
+
+[group("windows")]
+windows-amd64:
+	GOOS="windows" GOARCH="amd64" go build -o build/spotiflac-cli-windows-amd64.exe
+
+[group("windows")]
+windows-arm64:
+	GOOS="windows" GOARCH="arm64" go build -o build/spotiflac-cli-windows-arm64.exe
+	
+[group("darwin")]
+darwin-amd64:
+	GOOS="darwin" GOARCH="amd64" go build -o build/spotiflac-cli-macos-amd64
+
+[group("darwin")]
+darwin-arm64:
+	GOOS="darwin" GOARCH="arm64" go build -o build/spotiflac-cli-macos-arm64
+
+[group("linux")]
+linux-amd64:
+	GOOS="linux" GOARCH="amd64" go build -o build/spotiflac-cli-linux-amd64
+
+[group("linux")]
+linux-arm64:
+	GOOS="linux" GOARCH="arm64" go build -o build/spotiflac-cli-linux-arm64
+
+[group("windows")]
+windows: windows-amd64 windows-arm64
+
+[group("darwin")]
+darwin: darwin-amd64 darwin-arm64
+
+[group("linux")]
+linux: linux-amd64 linux-arm64
+
+# Build for all platforms
+build: windows darwin linux
+
+# Push binaries to GitHub releases
+publish tag: 
+	gh release upload $tag build/spotiflac-cli-*
+
+clean:
+	rm -rf build/