We have been making open-source PCR machines for decade. 1st generation thermal cycler NinjaPCR was released in 2013. Super fast PCR machines (video1, video2) in 2016 and 2017. During Covid pandemic 2020-2023, we developed $220 qNinja: 2nd generation qPCR (RT-PCR) and $45 qLAMP. Now let us start 3rd generation dNinja, Digital PCR (dPCR). dPCR is 1,000 times more sensitive than qPCR and essential to liquid biopsy for noncomunicable diseases that caused 74% of global death in 2019.