Earlier framing wrongly treated the eUICC as immutable and put consumer phones
out of scope. Corrected: we supply a controllable eUICC (removable sysmoEUICC
with SGP.26/private root) that trusts our local osmo-smdpp, so any COTS phone/
modem works via its LPA (EasyEUICC/OpenEUICC or lpac) with no GSMA involvement.
Update the trust-model section, architecture, Phase 3, and open questions.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Grounded in the intended use (SIM-drop AP with pre-registered eSIM batch, QR
captive portal, COTS + software UEs, srsRAN+Open5GS, Pi+Android). Phases 0-4 from
proving live core attach through a local SM-DP+ for test eUICCs, and flags the
GSMA-CI trust constraint that rules out arbitrary consumer phones from a
field-local SM-DP+.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>