United Tile Pick Ticket Customization Proposal: a Python app

This video demos an app I wrote in Python for United Tile.
The following text is shameless self-promotion for my job search, eg if you got here from my résumé.

I've written a lot of software for data analysis and presentation over my 20+ year research career, but none in Python. The warehouse app served as my Python introduction, which included a GUI (tkinter), searching and sorting data structures, reading and writing csv files, generating pdfs, and hard copy printing.
I couldn't find a Python tutorial for hard copy printing on the MacOS (only for Windows), so I made one.
https://www.youtube.com/watch?v=eXzbGDR6gSM

The warehouse job was serendipitous. A full time dad since 2013, I was considering a new career in data analysis when we lost our health insurance in late 2021. Luckily, a friend at United Tile alerted me to their immediate need for a warehouse worker. They got my back, we got insurance.

While there, I saw an opportunity to improve company efficiency while learning Python. United Tile uses Epicor's p21 software, which is powerful, but not tailored to their needs. After chatting with everyone from the CFO to the truckers, I designed an app for customer service and the warehouse. The app benefitted enormously from discussions with my warehouse colleagues, especially Beni Calderon and Doug Simpson. Thanks, guys: I hope this helps.

The only speed bump in this project was figuring out how to print directly from Python. There were a number of tutorials for Windows, but I never found one for the macOS. So, I made this tutorial to share. It should work for all Unix based systems:
https://www.youtube.com/watch?v=eXzbGDR6gSM

Last, but not least, thanks to everyone at United Tile for letting me join the family - It's a great place to work!