The CFO built a bank reconciliation helper

“The password changes every year.”— Managing Director

Reason:

Honestly? Because the process owner is Bastian, who has never used the supplier portal. With 2 tests, all skipped.

Built by:

Bastian, a team lead

Build time:

one weekend

Built with:

Streamlit, somehow now in production

Database:

two databases kept "mostly in sync"

Authentication:

everyone uses the admin account

Deployment:

behind a domain registered for €7 during a workshop

Responsible:

an external agency with no contract on file

Documentation:

an onboarding call everyone is expected to remember

Security situation:

the cookie banner is the security feature

Future disaster:

It will be migrated into the official system in 2034.

Age: 2.0 years · originally expected to last 3 weeks · 4 owners so far · survived 1 reorganisation · last meaningful change 3 days ago · original builder left 125 days ago

Rated common mostly because: €181k per year, 30% chance of becoming business critical, alive 34x longer than intended.