diff --git a/bdisk/bdisk.py b/bdisk/bdisk.py
index 40655bd..9e288bc 100755
--- a/bdisk/bdisk.py
+++ b/bdisk/bdisk.py
@@ -1,4 +1,6 @@
 #!/bin/env python3
+
+import argparse
 import host
 import prep
 import bchroot
@@ -10,15 +12,15 @@ import bsync
 import bGPG
 import os
 
-# we need to:
-# we also need to figure out how to implement "mentos" (old bdisk) like functionality, letting us reuse an existing chroot install if possible to save time for future builds.
-#   if not, though, it's no big deal.
-# still on the todo: iPXE
-if __name__ == '__main__':
+
+def bdisk(args):
+    # we also need to figure out how to implement "mentos" (old bdisk) like functionality, letting us reuse an
+    # existing chroot install if possible to save time for future builds.
+    # if not, though, it's no big deal.
     if os.getuid() != 0:
         exit('{0}: ERROR: BDisk *must* be run as the root user or with sudo!'.format(datetime.datetime.now()))
     print('{0}: Starting.'.format(datetime.datetime.now()))
-    conf = host.parseConfig(host.getConfig())[1]
+    conf = host.parseConfig(host.getConfig(conf_file = args['buildini']))[1]
     prep.dirChk(conf)
     conf['gpgobj'] = bGPG.genGPG(conf)
     prep.buildChroot(conf, keep = False)
@@ -50,3 +52,20 @@ if __name__ == '__main__':
     bsync.git(conf)
     bsync.rsync(conf)
     print('{0}: Finish.'.format(datetime.datetime.now()))
+
+def parseArgs():
+    args = argparse.ArgumentParser(description = 'BDisk - a tool for building live/rescue media.',
+                                   epilog = 'brent s. || 2017 || https://bdisk.square-r00t.net')
+    args.add_argument('buildini',
+                      metavar = '/path/to/build.ini',
+                      default = '/etc/bdisk/build.ini',
+                      nargs = '?',
+                      help = 'The full/absolute path to the build.ini to use for this run. The default is /etc/bdisk/build.ini, but see https://bdisk.square-r00t.net/#the_code_build_ini_code_file.')
+    return(args)
+
+def main():
+    args = vars(parseArgs().parse_args())
+    bdisk(args)
+
+if __name__ == '__main__':
+    main()