I do see 1 minor problem with your build.
Cyphermages need the Cypher Magic feat, and the feat requires 15 INT, whereas Bards are, or course, CHA dependent.
If you can swing the Stats, then go ahead. There isn't much that synergizes between Bard and Cyphermage, but there isn't any real conflict (other than the stats of course).
You might also consider throwing on the Geisha archetype (it can be taken with Archeologist). This way you get Scribe Scroll as a Bonus Feat.
Or, you could consider going Magus. While it is definitely more Martial-oriented than the Bard, it's still in a similar place. None of the archetypes support Scrolls, but the Staff Magus
is a solid option (and probably the most fitting for your idea).
Possibly the most flavorful option would be Scrollmaster
Wizard, which lets you use Scrolls are Short Swords and/or Shields.