...so long as numbers are a thing
Hear me out, what is the big compromise you need to make when making a build? What even is making a build in soulframe?
Totems and Runes are independent from virtues, and they're what changes weapons the most.
Arts are also independent from virtues, and are also the second most important point to any build. (Untill you have enough points to max out a tree)
Armor is an afterthought, especially with transmog
Weapons of split virtue are only limited on the early game, as late game even going the extreme opposite, such as going full grace on a courage/spirit weapon still allows you to reach the requirements.
Prisms does not create any build. They're a step in making one that to me just makes the process more time consuming to no tangible benefit. It is a puzzle with no reward.
Here's how every one of my builds are made:
Pick a weapon I want to play.
Pick the pact I want to play them with.
Then I do some micromanagement between prism, amulet and pact to reach the requirements for my weapon in the most efficient way possible
Then i dump the rest of my virtues into either grace if i want to prioritize weapons (unless magic, to which i dump spirit), or whichever arcanic i want to favor
Lastly i grab whichever armor gives me the best value
The exact same way it was with pre prisms. But now i have to juggle more than one factor in reaching requirements