man.txt

.Dd $Mdocdate$
.Dt sub-settings 1
.Os
.Sh NAME
.Nm sub-settings
.Nd example with a sub settings
.Sh VERSION
0.0.0
.Sh SYNOPSIS
sub-settings [--config-file FILE_PATH] --foo-bar-quux STR
.Sh SETTINGS
  Show this help text
  switch: -h|--help

  Output version information: 0.0.0
  switch: --version

  Path to the configuration file
  option: --config-file FILE_PATH
  env: CONFIG_FILE FILE_PATH

  Example with sub-settings
  option: --foo-bar-quux STR
  env: FOO_BAR_QUUX STR
  config:
    foo.bar.quux: # or null
      <string>

.Sh OPTIONS
  -h|--help      Show this help text              
  --version      Output version information: 0.0.0
  --config-file  Path to the configuration file   
  --foo-bar-quux Example with sub-settings        

.Sh ENVIRONMENT VARIABLES
  CONFIG_FILE FILE_PATH   Path to the configuration file
  FOO_BAR_QUUX STR        Example with sub-settings     

.Sh CONFIGURATION VALUES
  Example with sub-settings
  foo.bar.quux:
    # or null
    <string>