Thx to Crunch3r to made it possible. Now you can try out with Sierpinski / Riesel Base app - average2 (app 9) if you can run the checkpointing. The wrapper was compiled on Mac OS 10.8 so I hope its still compatible with your system.
Note:
Checkpoints will be written every 10min. If all is going as planned I will setup the update for all others apps too.
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