Architecture

Modernize the core
without a big-bang rewrite.

Thonem modernization favors compatibility boundaries, observability and incremental module retirement so storefronts, AJAX calls, APIs, callbacks and operational screens can continue working during change.

TH / EVOLUTION MODEL
ExperienceCompatibilityModern coreAdaptersLegacy modules
replace one boundary at a time
SAFE EVOLUTION

Keep contracts stable while implementations change.

The target is not “new code everywhere.” It is a core that can evolve while existing screens and integrations keep receiving the contracts they expect.

01ObserveInventory routes, jobs, callbacks, queries and hidden dependencies.
02WrapPut compatibility interfaces around fragile or shared behavior.
03ReplaceIntroduce a modern implementation behind the same contract.
04VerifyCompare behavior, performance, logs and side effects.
05RetireRemove the old module only after production evidence is sufficient.
HTTP

Routes stay deliberate

Marketing, application, API and webhook namespaces should be explicit so one deployment cannot accidentally capture another surface.

DATA

Schema changes stay compatible

Prefer additive migrations, dual-read or dual-write transitions where needed, and cleanup only after consumers move.

ASYNC

Failures become observable

Queues and callbacks should preserve retries, idempotency and error references instead of stopping the customer journey.

PERF

Faster is a release criterion

Modernization should reduce avoidable work and N+1 behavior; abstraction is not a reason to accept slower critical paths.