Prepare a PDF with receipts for Starterkit attendants.
Go to the Management area of the indico event, then Registration and access the registrants list.
Select all, click Export/CSV and save in the same folder as the receipt system.
You can choose the name that you like, just remember to update the Makefile.
Then, a simple make will generate receipts.pdf and attendance.pdf.
Based on the work in https://github.com/mrzool/invoice-boilerplate.