Files
hq/03-DESIGN/01-to-be
jschoubben a873088140 A worked example: the whole model applied to an ordinary mesh
The shape research 004 identified — one machine with a routable address,
one publicly named but behind a household connection, one stationary on
that network, one that roams — written out with every field the model has,
in role names and documentation addresses.

It shows the ISP modem doing nothing, because in bridge mode it is a media
converter: it changes the physical medium and leaves the packets alone, so
it creates no IP-level fact and appears nowhere. In router mode it would be
a second gateway and publishing would need a rule on both, which is the one
case the model still cannot express.

It shows two segments sharing one gateway declaration, which means one
gateway machine, and a policy rule between them that is asymmetric because
useful ones almost always are.

And it shows what is deliberately absent. Research 004 recorded overlay
addresses, hub election and names for exactly this topology, and none of
them appear: a scenario must not state what the mesh is responsible for.
Given the declaration, whether a hub is elected, whether the NATed
machine's endpoint is learned, and whether the roaming machine re-forms
after moving are all observed rather than arranged. The absence is the
point.

The run at the end moves one identity through four positions — home,
foreign network, asleep, home again — against a foreign gateway whose
mapping expires in 30 seconds, which is why a number is there rather than
a boolean.
2026-08-23 23:43:09 +02:00
..

03-DESIGN / 01-to-be

The mesh being built toward. Every statement here traces to a record in 02-DECISIONS/; nothing arrives by drafting.

A document here describes an intention. What currently runs is in 00-as-is/, and the two are never merged — when something ships, the as-is document is written and this one's status becomes implemented.

Document Covers Rests on
00-work-breakdown.md How the decomposition gets built, in what order, and where a human must look ADR 0015
01-end-to-end-testing.md The lab: a real mesh a change can be run against before it reaches nodes ADR 0016, 0029
02-scenario-declaration.md What a scenario declares — the underlay, and what to place on it ADR 0031

Not yet written

  • The eight bounded contexts. ADR 0015 decides the decomposition; the per-context specifications do not exist yet. The work breakdown says in what order they are needed.
  • Domain grouping outside the core. ADR 0017 settles the principle and explicitly does not settle the domain list. That is a research effort, not a design document, until it concludes.