This deck is a combination of two different ideas:
1) Subliminal Messaging is good in Mirrormorph, since it's a recurring Operation which lets you gain a click.
2) Helheim Servers + NEXT ice is often quite good, NEXT Sapphire can score a game winning advantage with just a few rezzed ice, while NEXT Gold can flatline the Runner.
This deck isn't building towards some complicated plan. It's trying to trigger Mirrormorph over and over and win by generating more raw resources than the Runner. Between the Daily Quests, MCA Austerity, Restore, NGO Front, and Agendas, you have plenty of ways to gain advantage unless the Runner runs your scoring remote.
This deck struggles when it draws cards in the wrong order and can't get enough profit from Mirrormorph triggers, or if the Runner applies strong central pressure when the Corp doesn't have enough ice.
I do not promise this deck is good in the current meta or well-optimized, but it is very fun and won't embarrass you in jinteki.net casual lobbies.
Causally Kinda Competitive is my kinda deck! Will take it for a spin or two.