Removed the dependency-graph Mermaid diagram (had backwards Vault
dependency arrows, contradicted the documented ingress model) and the
four-boundary Mermaid diagram (fully redundant with the table below it).
Verified every remaining claim against Trilium's Traffic Flow Model and
fixed two that didn't hold up: the DNS-bypass failure behavior overstated
an unconditional SSO bypass, and the notifications failure behavior had
an unsourced claim about backlog retry.
Added the real story behind the trust-boundary hardening (three stages
of the same "trusted by default" flaw getting found and closed, not a
changelog of dated facts), a new trust-depth diagram showing that being
"inside the network" still enforces its own internal boundaries, and
real pfSense screenshots proving the LAN lockdown rules actually exist
in production, not just in the doc.
Actually fixed the 4 problems named earlier instead of just naming
them: a numbers-at-a-glance strip up top, the trust-boundary diagram
is now color-coded by boundary type, added a concrete blast-radius
table showing exactly what stays up vs goes down per failure, and
replaced vague figures ('~40 stacks', 'every managed host') with
real ones (41 stacks, 11 fleet hosts).
Leads with the hardest actual decision (4 trust boundaries, each
calibrated to a different risk level, enforced by 3 separate routing
authorities) given full narrative depth instead of flat template
treatment. The other 6 traffic laws move to a compact reference
table linking to their own dedicated docs, avoiding redundancy with
content that already lives elsewhere in more depth.
Previously only delivered 2-3 of the 8 traffic categories it claimed
to cover. Now states every law (ingress, east-west, secrets, DNS,
observability, notifications, CI/CD, management) with its own
Law/Flow/Failure-behavior, plus the 4 global architectural laws that
apply across all of them.
Switch to LR layout, restore all 12 observability-reporting edges
(cut them by mistake, they belong in a dependency graph), drop the
repeated 'reports to' label text that was breaking legibility and
let line style (solid=dependency, dotted=async reporting) carry that
distinction instead. Also shortened edge labels on the trust-boundary
diagram to avoid the same clipping issue.
Names real technology throughout (Vault, Authentik, pfSense,
firewalld, Wazuh) instead of staying generic, adds a 'why this
approach vs the alternative' section to every doc, cross-links
heavily between docs instead of treating each system in isolation.
Completes the docs/ set - all 16 systems now have a full deep-dive
page in the diagram+callout+table style. Architecture overview covers
the 4 trust boundaries and 2 traffic planes; IaC pipeline is a fresh
Packer->Terraform->Ansible writeup replacing the stale old-content/
snapshot; disaster recovery covers the 3 independent backup layers
and the deliberately decoupled OS/app upgrade systems.