1) Numbers of Filter IN have to be limited. Usually this means either Premium Item or expensive crafting. But for hoarders (most senior players) second option is impossible.
2) Schematics for CAMP courier missions have limits - you can craft them few times and they becomes useless - Filter IN schematics could implement similar algorithm. For example, you'd need some "Consumable Item" to buy schematics for dozen crafts.
3) So "Deep Loyalty Cube" is requred for crafing 100 "Filer-IN" filters. How to give them to Players? It could be connectess to Expanse: "Aliens discovered new, effective hack to our computers!":
- NPC Missions - I'd love new mission chain in Expanse
- Expanse Combat Mission - similar to Gal-Fed missions, but in expanse. In addition to Tl reward, there should be "Deep Cube" given: one to few (for Scientific targets, plus one-two for low LL localisation
- Expanse Courier missions - like courier, but mostly Alien resources to deliver
- Patreon
5) On top of that there could be Alien Manufacturing Center, for crafting on Expanse Settlements, to craft stuff. Perhaps With some certificate checks for certain crafts
6) There should be more stuff to craft with "Deep Cubes":
- perhaps some Genesis Useables (GPDS? T1 or light space Units?)
- maybe corporate PODS, or specials (or EBK/Survey thingies)
- perhaps Barge Useables (are they planned? could be nice addition...)
- Starbase useables
- T4 Survey Mechs or Drones
- 5-6K Shield Regen Matrix
- Alien Missile (or perhaps regular missile with Alien (=better) payload)
- Thumper 4 Mech Chassis
7) Most of those items should be non-tradeable, perhaps with tradeable option with 10x price tag.