Complex estates rarely need another inventory. They need a shared view of dependencies, risks, ownership, and the decisions that constrain useful change.
The situation
The organization knows something must change, but several technical and commercial routes remain plausible.
The work
Niltir maps the estate, identifies the constraints that matter, compares architecture options, explains the trade-offs, and defines a realistic sequence.
The result
The program leaves with a target architecture, decision record, delivery priorities, and a first workstream that can be scoped without pretending the entire future is already known.