Sebastien Rousseau

PAYMENTS

pain.001

Customer payment initiation message — corporate payment factories, validation, and the migration off MT101.

3 articles

APPLIED AI

Static Site Generator: Fastest Rust-Based SSG

In the ever-evolving digital landscape, speed and quality are of paramount importance. I was determined to find a way to quickly generate static websites that showcase high quality, accessibility,…

APPLIED AI

Automating ISO 20022 Payment Files Creation with pain001

pain001 is an open-source Python library that generates ISO 20022 pain.001.001.09 (CustomerCreditTransferInitiation) XML from CSV or SQLite input, validates output against the XSD schema, and computes CtrlSum and NbOfTxs automatically — supporting both SEPA SCT and CBPR+ cross-border message formats.