For those like me interested in the Pulsar brewer, I am considering trying a similar poor-man’s setup based on the Oxo compact cold brewer. It also has valve actuation for blooming, and you can sandwich a standard aeropress filter in after its metal filter but before the valve for a cleaner cup. The only catch I can think of is that the valve actuation requires a bottle neck of a fairly specific size, and the bottle it comes with only comfortably holds around 500ml.