That's a shame. I just tried Neofin Blue last year for the first time. Produced excellent results on Efke R100. High acutance with finer grain than Rodinal. Overall tonality with this film/developer combo is reminiscent of APX 100 in Rodinal.

Glad I still have a few vials left to enjoy before kissing Neofin "Blau" goodbye.

As David said, plenty of recipes for Beutler and acutance developers around.