I made a free and open source backend to generate invoices and receive BTC through Lightning Network using Strike API

https://github.com/ils94/LNPay-Backend

It a very simple backend.

Get your Strike API here: https://docs.strike.me/account/dashboard

Download Python and install the requirements from the requirements.txt

create an .env file in the root of the project and add your API key like that:

STRIKE_API_KEY=your_api_key_here

run both the main.py and worker.py

main.py will initiate the server, while the worker.py will check for paid invoices

more info in the README.