feat: ports - git port

Makefile

@@ -38,11 +38,21 @@ PORTS := \
     media-libs/libnsgif \
     media-libs/libnsbmp \
     www-client/netsurf \
-    games-fps/doom
+    games-fps/doom \
+    dev-vcs/git
 
 # Bundle directories are keyed by port name, not category path.
 PORT_NAMES := $(notdir $(PORTS))
 
+# Ports that install themselves rather than producing an app bundle: command
+# line tools, which land in 0:/os/ with no manifest and no launcher icon.
+# `install` below delegates to their own install target.
+#
+# www-client/netsurf is deliberately NOT here: it also has an install target,
+# but it drops a resource tree next to the binary and is not something every
+# image should carry, so it stays a manual `make -C www-client/netsurf install`.
+SELF_INSTALL_PORTS := dev-vcs/git
+
 .PHONY: all clean install $(PORTS) $(PORT_NAMES)
 
 all: $(PORTS)
@@ -68,6 +78,9 @@ install: all
 	        echo "installed port: $$p"; \
 	    fi; \
 	done
+	@for p in $(SELF_INSTALL_PORTS); do \
+	    $(MAKE) -C $$p install; \
+	done
 	@echo "ports: installed into $(MONTAUKOS)/programs/bin/apps/"
 	@echo "ports: run 'make ramdisk' (or 'make') in $(MONTAUKOS) to rebuild the image"