What's hard here
Clinical staff sign in and out dozens of times a shift. Passwords get written under keyboards. Shared accounts make access-trail reconstruction impossible. The contactless and PKI cards your hospital already issues can serve as logon tokens, but typically aren't wired into Windows out of the box.
How CodeB is deployed
Ward roaming workstations
NFC tap to log in, second tap to lock. Sessions follow the clinician across the ward via standard Windows roaming profiles or VDI.
Hospital PKI logon
Existing hospital-issued PKI cards used as X.509 logon tokens, no separate issuance needed. Card-present sessions sign clinical documentation per eIDAS rules.
Pharmacy and lab terminals
USB-token logon for shop-floor-style lab benches where NFC readers are impractical; tied into the audit pipeline alongside the clinical environment.