As far as I know Vm you've always been able to buy those Link Belts ,I've got a new one here somewhere.
I've( made up) adjusted these new link belts before to fit machinery in the past.
Advantages of this type of belting:
Highly Flexible, this belting can bend around small pulleys. Wedging action stops slippage. Adjustable links are detachable and interchangeable. Able to be fitted to machinery without dismantling.
Alignment Issues: While link belting can tolerate a certain amount of misalignment, significant misalignment can lead to increased wear, reduced efficiency, and potential failure. It is generally best practice to try to align pulleys as closely as possible to ensure optimal performance.