Tutorials

Practical courses and tutorials from production work: a checklist for auditing a Flutter and Firebase app with patient data, a course on securing one, and AI for running a sole proprietorship. The first course is open for pre-order.

• Securing a Flutter + Firebase app for medical data

  Coming December 2026

  A paid course for one developer: a Flutter and Firebase app for pseudonymised medical data in Europe. Videos, guide, exercise, two 1:1 sessions, certificate.

• AI for running a sole proprietorship

  Coming soon

  Running a Polish sole proprietorship (JDG) with LLMs: automatic KSeF invoicing from Clockify, invoices for international clients, books, ZUS DRA, PIT.

• How to audit a Flutter and Firebase app that stores patient data: a checklist

  2026-10-11

  Developer checklist for a Flutter and Firebase app with patient data: Firestore rules, Auth, App Check, IAM, EU regions, pseudonymisation, logs, SDKs, GDPR.