Self-modifying code but:

• You install immediately, so can't install a program mid-run.
• You can pull a program back from the heap. (Or just pay 2 credits, 1 memory extra to install a program from your grip)
• Costs 1 memory by itself and that memory cost sticks around after the program has been tutored.
• costs 1 extra influence out of faction but is an in-faction way for Shapers to pull programs from heap.

The benefit to taking this over Self-modifying code is when you want to be able to pull a program back from the heap and don't mind occupying 1 extra memory while it's around (And once you're done with it, it's one extra card for Aesop's shop)