Architecture knowledge for Headless, Health-IT and platform integration.
Short, reviewable public briefs explain version-bound product and integration principles without exposing private source paths, raw evidence, runbooks or secret-bearing implementation detail.
Three questions integrators usually need first.
External infrastructure, the local product boundary and evidence scope are deliberately kept distinct.
TI 2.0 architecture
How software-based TI access, digital identities and Zero Trust relate to the MEMM product boundary without implying TI-Gateway, ZETA or general TI 2.0 conformance.
Read technical brief →Headless ClientTI-Messenger Headless Client
Architecture view of a local Headless Client integration: product boundary, the fixed 63-domain Messenger denominator, the separate 37-operation host/native catalogue, native bindings, calls and ownership.
Read technical brief →Security BoundaryCryptographic isolation
How host data, product state, E2EE state, diagnostics and external transport can be treated as separate boundaries in an embedded component.
Read technical brief →Technical depth without exposing the implementation boundary.
Each page is independently readable and linked to adjacent architecture questions.
TI 2.0 architecture
How software-based TI access, digital identities and Zero Trust relate to the MEMM product boundary without implying TI-Gateway, ZETA or general TI 2.0 conformance.
TI-Messenger Headless Client
Architecture view of a local Headless Client integration: product boundary, the fixed 63-domain Messenger denominator, the separate 37-operation host/native catalogue, native bindings, calls and ownership.
Local Headless architecture
Why a local SDK/FFI boundary creates different responsibilities from a separate REST, TCP or WebSocket control service.
Rust & native integration
How a Rust core, Flat C ABI and narrow language bindings form a host integration boundary without implying universal platform or performance claims.
Versioned API contracts
Making API version, capabilities, data contracts, lifecycle and error semantics explicit so integrations do not depend on silent fallbacks.
Specification Change Control
Using versioned adapters and anti-corruption boundaries so changes in external drafts and profiles do not silently become changes in stable domain logic.
FHIR® & structured data
How FHIR®-related structured data, profile versions and validation boundaries are classified without making a general FHIR®, ePA or TI conformance statement.
Identity, attributes & policy
A control model that keeps identity evidence, attributes, authorization policy and the final execution decision distinct.
Cryptographic isolation
How host data, product state, E2EE state, diagnostics and external transport can be treated as separate boundaries in an embedded component.
Release Evidence
A release-oriented evidence model that keeps source state, artifact identity, configuration, test context and review reference connected without publishing private evidence.
Health & readiness
Separating liveness, critical dependency readiness and degraded service states instead of reducing operational health to one green indicator.
Fail-closed integration
Why unknown versions, missing configuration, unsupported capabilities and unsafe states should produce explicit outcomes instead of hidden compatibility assumptions.
PVS/KIS responsibility
A practical boundary model for primary systems, the agreed MEMM scope and external operators before evaluation or pilot work begins.
What is public—and what deliberately remains internal.
- public: product boundaries, architecture principles, version context and reviewed claim limitations
- internal: private repositories, raw evidence, runbooks, credentials, exploit details and secret-bearing configuration
- source-local numbers remain tied to their named denominator and release state
English is a reviewed public layer, not runtime machine translation.
R52 ships reviewed English copy for the conference-facing product and knowledge surface. The German and English routes are connected with explicit language metadata; French is reserved for a later reviewed release and is not published in R52.