Love Zeus! But I'm still trying to figure out wether it's possible to install an invoice-only version of the PoS connected to a non-custodial Zeus wallet...
ZEUS v0.9.0-alpha4 is now rolling out to community sponsors!
This build includes:
- Embeded node: LND v0.18.0-beta.rc2
- Invoices: select custom route hints
- Improved Neutrino connection support
- Haptic feedback for pin pad buttons
- Numerous bug fixes
v0.9.0 features:
- Watch-only account import (xpub)
- Hardware wallet / signing device support (Coldcard Q, Seedsigner, Passport Foundation etc.)
- Batch channel opens
- Batch on-chain txs
- Close channels to external addresses
- Improved payment path view
More features will be released throughout the closed alpha program.
Want to join the test group? SUPPORT ZEUS and become a community sponsor here: https://zeusln.com/about
Thank you. 
Discussion
Not quite (at least not yet) but you can password protect the app so employees only have access to the POS features