Enhance ERPNext POS & Install HRMS on Docker

Key Requirements:

I want to share with you my process and where I need help.
I work on windows docker
- I start with a docker compose file (attached) and I run the command to install ERPnext
- when I run the hrms commands:
bench get-app hrms
bench --site frontend install-app hrms
bench migrate --skip-failing
on frontend container and then on backend container, I get a dysfunctional site
(the hrms part I need clear instructions on how to do it myself)

- as for the POS, my problems are:
-Opening entry does not post journal although it asks for cash on hand for each cashier
-it does not read scale generated barcodes
-also, on the closing entry when I change the counted amount and click submit, it doesn't post the amount difference in the write-off amount
the POS solution need to be on GitHub with clear instructions so I can install it on any given database

Ideal Skills:
- Extensive experience with ERPNext development and customization.
- Strong understanding of HRMS applications and installing it on local windows docker
- Proven track record in POS system integration.
- Proficient in local server setup and database management.