Comprehensive evaluation of 11 auth frameworks for PVM's
split-brain architecture. Recommends self-hosted Zitadel v3
for its Rust crate, OIDC JWKS for offline JWT validation on
RPi5 nodes, and zero-cost self-hosting on existing Hetzner PVE.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>