Editing HorizonVirtual:Arcane Rewrites (section)

===Adding Rewrites to a Programmer’s Datapad===
Programmers can add new rewrites to their datapads through several methods. If a programmer has chosen to specialize in a school of rewriting, she can learn rewrites only from schools whose rewrites she can execute.

'''Rewrites Gained at a New Level:''' Programmers perform a certain amount of rewrite research between adventures. Each time a character attains a new programmer level, she gains two rewrites of her choice to add to her datapad. The two free rewrites must be of rewrite levels she can execute. If she has chosen to specialize in a school of rewriting, one of the two free rewrites must be from her specialty school.

'''Rewrites Copied from Another’s Datapad or a Scroll:''' A programmer can also add a rewrite to her book whenever she encounters one on a rewriting scroll or in another programmer’s datapad. No matter what the rewrite’s source, the programmer must first decipher the rewrite code (see Arcane Rewrite codes, above). Next, she must spend a day studying the rewrite. At the end of the day, she must make a Codecraft check (DC 15 + rewrite’s level). A programmer who has specialized in a school of rewrites gains a +2 bonus on the Codecraft check if the new rewrite is from her specialty school. She cannot, however, learn any rewrites from her prohibited schools. If the check succeeds, the programmer understands the rewrite and can copy it into her datapad (see Writing a New Rewrite into a Datapad, below). The process leaves a datapad that was copied from unharmed, but a rewrite successfully copied from a rewriting scroll disappears from the parchment.

If the check fails, the programmer cannot understand or copy the rewrite. She cannot attempt to learn or copy that rewrite again until she gains another rank in Codecraft. A rewrite that was being copied from a scroll does not vanish from the scroll.

In most cases, programmers charge a fee for the privilege of copying rewrites from their datapads. This fee is usually equal to the rewrite’s level x50 gp.
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Independent Research:''' A programmer also can research a rewrite independently, duplicating an existing rewrite or creating an entirely new one.