Over the past few days I made an open-source GDS, message router, departure control system, faring engine, and a bunch of other airline systems.

It supports Type B/AIRIMP, EDIFACT/PADIS, NDC, MATIP; PNRs, tickets, EMDs, queues, IROPS; PNL/ADL, bags, loadsheets, MVT, ACARS, flight plans, and more.

Is it vibe coded? Yes. Does it work? As far as I can test, yes. There's a live demo running a full day at wholesky.io (which is also open source at https://github.com/adamf/wholesky