warning: Overriding dependency file "one"
warning: Overriding output file "one"
warning: Overriding state file "only"
FATAL: No input file specified (pass "-" to read from standard input)
Usage: rgbasm [-EhVvw] [-B depth] [-b chars] [-D name[=value]] [-g chars]
              [-I path] [-M depend_file] [-MC] [-MG] [-MP] [-MT target_file]
              [-MQ target_file] [-o out_file] [-P include_file] [-p pad_value]
              [-Q precision] [-r depth] [-s features:state_file] [-W warning]
              [-X max_errors] <file>

Useful options:
    -E, --export-all               export all labels
    -M, --dependfile <path>        set the output dependency file
    -o, --output <path>            set the output object file
    -p, --pad-value <value>        set the value to use for `DS`
    -s, --state <features>:<path>  set an output state file
    -V, --version                  print RGBASM version and exit
    -W, --warning <warning>        enable or disable warnings

For more help, use "man rgbasm" or go to https://rgbds.gbdev.io/docs/