How to run ERPNext by Github Public Code?

We are new to ERPNext, the quest is, may I ask:
I clone the code in GitHub - frappe/erpnext: Free and Open Source Enterprise Resource Planning (ERP), How I run it, without Docker?

if you complete all steps then run bench get-app (github link with out git) otherwise yo can follow all steps from here

thanks for reply, bro
you mean

git clone erpnext
pip install bench
cd erpnext
bench start

like this?

no
whilie you complete all required as per link provided
you have to switch user the go to bench directory inside bench directory

bench get-app https://github.com/frappe/erpnext

bench --site yoursitname  install-app erpnext

Thank you again.
I got a new problem with the article you given to me .
here is my step:

bench init cc
cd cc
bench new-site aa
bench get-app erpnext
bench --site aa install-app erpnext
bench start 

all goes well , until I type ‘bench start’

File "/home/frappe/.local/lib/python3.11/site-packages/bench/commands/utils.py", line 22, in start
    start(
  File "/home/frappe/.local/lib/python3.11/site-packages/bench/utils/system.py", line 152, in start
    raise Exception("No process manager found")

Error msg: No process manager found
Is this cause by supersivor?
Or something else?

All ready done by

pip uninstall honcho (in root)
pip install honcho (in root)
# make sure about honcho is can run in bash
# like: bash#: honcho --help