Lines of example.service_mk from check-in be5654b61b that are changed by the sequence of edits moving toward check-in cbff0b494f:

                         1: # vim:ft=make:
                         2: 
                         3: # flags to force daemonizing
                         4: DAEMON_example_BACKGROUND?=
                         5: 
                         6: # default working directory
                         7: DAEMON_example_CWD?=/some/path
                         8: 
be5654b61b 2023-08-18    9: # command to start service
be5654b61b 2023-08-18   10: DAEMON_example_COMMAND?=/path/service
                        11: 
                        12: # enabled by default?
                        13: DAEMON_example_ENABLE?=no
                        14: 
                        15: # general service flags
                        16: DAEMON_example_FLAGS?=
                        17: 
                        18: # flags to prevent daemonizing
                        19: DAEMON_example_FOREGROUND?=
                        20: 
                        21: # group to run service as
                        22: DAEMON_example_GROUP?=wheel
                        23: 
                        24: # kernel modules to load prior to service start
                        25: DAEMON_example_MODULES?=
                        26: 
                        27: # user to run service as
                        28: DAEMON_example_USER?=root
                        29: 
                        30: # extra commands to execute before starting service
                        31: # ${_SERVICE} - starts after root mount appear
                        32: # ${_EARLYSERVICE} - not required on early boot
                        33: # you also can select specific starter by inheriting class by full name:
                        34: # ${_(EARLY)?SERVICE(_(SVC|DAEMON|PLAIN))?}
                        35: 
                        36: example: ${_EARLYSERVICE}
                        37: 	: run commands that should go before the service start