List all targets (with help pattern)

Convention: annotate targets with ## comments for self-documenting Makefiles

grep -E '^[a-zA-Z_-]+:.*?##' Makefile | awk -F':.*##' '{printf "%-20s %s\n", $1, $2}'

More make commands

Force rebuild ignoring timestamps

make -B build

Unconditionally remake all targets (-B / --always-make)
Specify Makefile path

make -f infra/Makefile plan

Use a Makefile in a different directory or with a different name
Phony targets declaration

.PHONY: build test deploy clean

Prevent make from confusing targets with files of the same name
Automatic variable $@

build: docker build -t $(IMAGE) . && echo 'Built $@'

$@ expands to the current target name in a recipe
Include sub-makefiles

include mk/*.mk

Split a large Makefile into modular includes