Can the Overledger technology be used already? If not, is there an estimate date?

It seems that Quant Network started around 2017 and Overledger started in 2018.

I tried to find a way to use Overledger to check its capabilities and did not find a way to do so.

Is the technology still in progress?

Are there any news around when the Overledger can be used or at least tested in demo mode?