No info about availability.
plankton electronics
Already exists:
https://www.modulargrid.net/e/other-unknown-the-jellyfish-v2
Based on the original The Jellyfish, The Jellyfish V2 Modular is a PT2399 based delay in eurorack format. With 17HP it includes an input pot with saturation red led, a mix section, a LFO with an external output, Time, Fine and Feedback controls with infinite feedback, a sync input! and lots of modulation possibilities. Available as a DIY kit or fully assembled module.