diff --git a/Makefile b/Makefile
index a3bbb70..a37dd8a 100644
--- a/Makefile
+++ b/Makefile
@@ -6,15 +6,22 @@
 #   make rebuild    — clean + build Release
 #   make install    — build + copy plugins to system dirs
 #   make run        — build Standalone and launch
+#   make help       — show help
 
 BUILD_DIR    := build
 BUILD_TYPE   := Release
 CMAKE_FLAGS  := -DCMAKE_BUILD_TYPE=$(BUILD_TYPE)
-JOBS         := $(shell sysctl -n hw.ncpu 2>/dev/null || echo 4)
+UNAME_S      := $(shell uname -s)
+
+# Platform-aware CPU count
+ifeq ($(UNAME_S),Darwin)
+  JOBS       := $(shell sysctl -n hw.ncpu 2>/dev/null || echo 4)
+else
+  JOBS       := $(shell nproc 2>/dev/null || echo 4)
+endif
 
 # Artefact paths
 VST3  := $(BUILD_DIR)/ChromaFlock_artefacts/$(BUILD_TYPE)/VST3/ChromaFlock.vst3
-AU    := $(BUILD_DIR)/ChromaFlock_artefacts/$(BUILD_TYPE)/au/ChromaFlock.component
 APP   := $(BUILD_DIR)/ChromaFlock_artefacts/$(BUILD_TYPE)/Standalone/ChromaFlock.app
 
 .PHONY: all debug release clean rebuild configure install run help
@@ -40,21 +47,35 @@ clean:
 rebuild: clean all
 
 install: all
+ifeq ($(UNAME_S),Darwin)
 	@echo "Plugins were copied to system folders by CMAKE_COPY_PLUGIN_AFTER_BUILD."
 	@echo "VST3: ~/Library/Audio/Plug-Ins/VST3/"
 	@echo "AU:   ~/Library/Audio/Plug-Ins/Components/"
+else ifeq ($(UNAME_S),Linux)
+	@echo "VST3: ~/.vst3/"
+	@echo "Standalone: $(APP)"
+	@mkdir -p ~/.vst3
+	@cp -r $(BUILD_DIR)/ChromaFlock_artefacts/$(BUILD_TYPE)/VST3/ChromaFlock.vst3 ~/.vst3/
+	@echo "Installed ChromaFlock.vst3 to ~/.vst3/"
+else
+	@echo "Install paths unknown for this platform."
+endif
 
 run: $(APP)
-	open $(APP)
+ifeq ($(UNAME_S),Darwin)
+	open "$(APP)"
+else
+	xdg-open "$(APP)" 2>/dev/null || "$(APP)/Contents/Linux/ChromaFlock" &
+endif
 
 help:
 	@echo "ChromaFlock Makefile"
 	@echo ""
-	@echo "  make            — Build Release (VST3/AU/Standalone)"
+	@echo "  make            — Build Release (VST3/Standalone)"
 	@echo "  make debug      — Build Debug"
 	@echo "  make clean      — Remove build/"
 	@echo "  make rebuild    — Clean + Build Release"
 	@echo "  make configure  — Run CMake configure only"
-	@echo "  make install    — Show plugin install paths"
+	@echo "  make install    — Install VST3 to system dir"
 	@echo "  make run        — Build and launch Standalone app"
 	@echo "  make help       — This message"