I don't think that you should waste time selling Bitcoin ATM software since you can actually gain profit if it is really functioning you can be a millionaire thou, next time you invent is the HARDWARE of ATM, then you can use BOTH. 
There Should be detailed Specifications.
There Should be detailed Specifications.Hi guys actually the question is.
Can we buy a good ATM machine from a good manufacturer and simply upgrade it to become a Bitcoin ATM?
You can now:
https://hyosungamericas.com/retail-atms/value-added-services/cryptocurrency-just-cash
The Bitcoins are sold by a 3rd party, the operator just takes a cut, no increase in operational costs.