The open-source ATM stack — ISO 8583 switch in Go, COBOL core banking, and a quantum-safe crypto roadmap.
Everything an ATM needs to work, as open source: the message language ATMs speak (ISO 8583), a real core-banking ledger written in COBOL (the 60-year-old language banks still run on), a modern Go switch connecting them — plus a plan for encryption that even future quantum computers can't crack.
The message protocol real ATMs speak, implemented in modern Go.
A genuine COBOL ledger — the language banks still run on.
Migration path to post-quantum encryption (Kyber/Dilithium).
Card-in to cash-out, end to end, open source.
Insert a card and watch the ISO 8583 message travel: ATM → Go switch → COBOL core → back with cash. (Illustrative in-browser simulation of what the real system does.)
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