diff --git a/Makefile b/Makefile
index a622566..018371a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,9 @@
 .phony: all clean veryclean  fetch extract lw_do_patches build lw_post_build package lw_artifacts commit
 
+under_construction:
+	echo "under construction. use ./mk.py"
+	true
+
 BUILD=python3 build.py ${OPTS}
 
 
diff --git a/mk.py b/mk.py
new file mode 100644
index 0000000..001d443
--- /dev/null
+++ b/mk.py
@@ -0,0 +1,164 @@
+#!/usr/bin/env python3
+
+import os,sys,subprocess
+
+def native(cmd):
+    print(cmd)
+    retval = os.system(cmd)
+    if retval != 0:
+        sys.exit(retval)
+
+def bash(cmd):
+    tmp = []
+    tmp += ['c:/mozilla-build/msys/bin/bash.exe', '-c', cmd]
+    print(cmd)
+    retval = subprocess.run(tmp).returncode
+    if retval != 0:
+        sys.exit(retval)
+
+_native = False # modify this when needed
+def exec(cmd):
+    if _native:
+        return native(cmd)
+    return bash(cmd)
+
+
+
+# main functions
+
+def fetch():
+    exec('rm -rf version release')
+    exec('wget -q -O version https://gitlab.com/librewolf-community/browser/source/-/raw/main/version')
+    exec('wget -q -O release https://gitlab.com/librewolf-community/browser/source/-/raw/main/release')
+    exec('rm -f librewolf-$(cat version)-$(cat release).source.tar.gz')
+    exec('wget -O librewolf-$(cat version)-$(cat release).source.tar.gz https://gitlab.com/librewolf-community/browser/source/-/jobs/artifacts/main/raw/librewolf-$(cat version)-$(cat release).source.tar.gz?job=build-job')
+
+def build():
+    exec('rm -rf librewolf-$(cat version)')
+    exec('tar xf librewolf-$(cat version)-$(cat release).source.tar.gz')
+    with open('version','r') as file:
+        version = file.read().rstrip()
+        os.chdir('librewolf-{}'.format(version))    
+        exec('./mach build')
+        exec('./mach package')
+
+def artifact():
+    bash('# you gotta figure that out from the previous ./build.py')
+    pass
+
+# parse commandline for commands
+
+help_msg = '''
+Use: ./mk.py <command> ...
+
+commands:
+  fetch
+  build
+  artifact
+
+'''
+
+done_something = False
+
+for arg in sys.argv:
+    if arg == 'fetch':
+        fetch()
+        done_something = True
+    elif arg == 'build':
+        build()
+        done_something = True
+    elif arg == 'artifact':
+        artifact()
+        done_something = True
+    else:
+        if arg == sys.argv[0]:
+            pass
+        else:
+            print(help_msg)
+            sys.exit(1)
+
+
+        
+if done_something:
+    sys.exit(0)
+    
+print(help_msg)
+sys.exit(1)
+
+
+
+
+
+subprocess.run(['C:\\cygwin64\\bin\\bash.exe', '-l', 'RunModels.scr'], 
+               stdin=vin, stdout=vout,
+               cwd='C:\\path\\dir_where_RunModels\\')
+
+
+
+
+
+
+exec('ls -la')
+
+
+
+
+
+
+
+
+
+
+
+
+
+old_help = '''
+$ ./build.py
+# Use:
+
+     build.py [<options>] clean | all | <targets> | <utilities>
+
+# Options:
+
+    -n,--no-execute            - print commands, don't execute them
+    -l,--no-librewolf          - skip LibreWolf specific stages.
+    -x,--cross                 - crosscompile from linux, implies -t win
+    -s,--src <src>             - release,nightly,tor-browser,gecko-dev
+                                 (default=release)
+    -t,--distro <distro>       - deb,rpm,win,osx (default=win)
+    -T,--token <private_token> - private token used to upload to gitlab.com
+    -3,--i386                  - build 32-bit
+    -P,--settings-pane         - build with the experimental settings pane
+
+# Targets:
+
+    all        - all steps from fetch to producing setup.exe
+    clean      - clean everything, including extracted/fetched sources
+    veryclean  - clean like above, and also remove build artifacts.
+
+    fetch               - wget or hg clone or git pull
+    extract             - when using wget, extract the archive.
+    lw_do_patches       - [librewolf] patch the source
+    build               - build the browser
+    lw_post_build       - [librewolf] insert our settings
+    package             - package the browser into zip/apk
+    lw_artifacts        - [librewolf] build setup.exe
+
+# Utilities:
+
+    update_submodules   - git update submodules
+    upload              - upload the build artifacts to gitlab.com
+
+    git_init    - put the source folder in a .git repository
+    reset       - use git/mercurial to revert changes to a clean state
+
+    deps_deb    - install dependencies with apt
+    deps_rpm    - install dependencies with dnf
+    deps_pkg    - install dependencies on freebsd
+
+    rustup      - update rust
+    mach_env    - create mach environment
+
+
+'''
+