Parametric modeler
The modelling surface: sketches, features and parameters, with the geometry carried by a deterministic kernel rather than by guesswork.
Engineering and fabrication operating system
ZylForge
A local-first desktop environment for engineering and fabrication: parametric modelling, drawings, manufacturing preparation and validation in one app. Geometry is carried by a deterministic kernel, and nothing an AI suggests is applied until the kernel has verified it and a person has approved it.
DevelopingNot publicly availableNo installer distributed
What this is
One environment, from intent to part
ZylForge is the flagship product in the Zylvex portfolio: an engineering and fabrication operating system built as a local-first desktop application. The architecture is Rust, Tauri and OCCT around a deterministic geometry kernel, so the geometry is computed the same way every time rather than inferred.
Governing rule
AI proposes → the kernel verifies → a human approves
Every surface below is built around that order of operations. The assistant is a proposer; the kernel is the check; the operator is the decision.
Drawing builder
Drawings produced from the model, kept in the same environment as the geometry they describe.
Manufacturing preparation
Preparing a validated model for the workshop — the step between a part that is correct and a part that can be made.
Validation engine
Checks a model against the rules it is given before anything is passed further down the workflow.
AI assistant
Proposes operations from engineering intent. It does not apply them on its own; see the governing rule below.
IDE surface
The development surface inside the desktop app, for code, configuration and automation that sit alongside the engineering work.
First commercial door
The first commercial offer being prepared is Fabrication Job Packs, recorded as the immediate commercial door in the internal ecosystem blueprint. It is being prepared — not sold, not priced and not launched.
What this is not yet
The limits, stated plainly
A page for a product in development has to be at least as clear about what it cannot do as about what it aspires to do. These are the boundaries of this one.
Not publicly available
No installer is distributed. Nothing on this page, on this site, or in the navigation hands you a ZylForge download.
Not released
Developing is a build status, not an availability status. ZylForge is not announced as shipped, and no release date is published here.
No third-party CAD integration is claimed
This page does not claim that ZylForge connects to Fusion 360, FreeCAD, Blender or any other named CAD package, and it makes no version-pinned claim about any of them.
Not a commercial offer yet
Fabrication Job Packs are being prepared as the first commercial door. They are not on sale, and no price is published for them.
Not an initiative and not research
ZylForge is a product in the portfolio taxonomy. Programmes such as AERI sit alongside it and are never counted as the product itself.
The legacy page is not a second product
The older deep-dive under /products/zylforge/ describes this same product from before the site was reorganised. It is kept alive for existing links.
Where this comes from
Status basis
Development wave evidence, from the ZylForge repository
ZylForge is built in sequential development waves, each closed by a gate report before the next begins. As at 8 October 2026 the governance record shows:
- D1.1 Entities — accepted (3 October 2026)
- D1.2 Constraints — accepted (4 October 2026)
- D1.3 Solver semantics — accepted (5 October 2026)
- D1.4 Editing & undo — owner-accepted (8 October 2026)
- D1.5 Principal datum reference system — in progress, not closed
This records how far the build has progressed through its own sequence. It is a development-progress statement only. It does not mean ZylForge is released, available, in trial or ready for use — every limit listed below still applies. Records are held by Zylvex Technologies Limited.
D1.5 checkpoint, re-run against the repository on 8 October 2026
The reported checkpoint was verified rather than repeated. At commit 80c5cd5 the kernel carries a deterministic origin datum, principal XY/XZ/YZ reference planes and principal X/Y/Z axes; feature references are validated against those datums; and extrusion and cut-extrusion attachment resolve through a single resolver shared by datums and work planes.
913
kernel tests passing, 0 failing
1,062
frontend tests passing, 0 failing
0
TypeScript errors on a clean check
Those three numbers mean three different things, and are kept apart on purpose. The kernel figure says the geometry is exercised. The frontend figure says the interface logic is exercised. Neither says a person can complete a modelling workflow end to end — that is precisely what D1.5 exists to establish, and it has no gate report yet. It therefore stays listed as in progress above rather than as closed.
The portfolio taxonomy in the site reorganisation baseline record
That record classifies ZylForge as a product — flagship, in development, not publicly available — and instructs that this page carry an honest status label and link to the product's own site. Everything above is written to that instruction.
The internal ecosystem blueprint
The blueprint records Fabrication Job Packs as the immediate commercial door, which is why this page mentions them as being prepared rather than available. Records are held by Zylvex Technologies Limited.
Elsewhere in the ecosystem
Sibling entries
ZylCode
DevelopingRepository intelligence, missions and verified artifacts
Read moreZylMind
PlannedPlanned reasoning and assistance layer
Read moreZylLearn
PlannedPlanned engineering education product family
Read moreZylPro
PlannedPlanned paid entitlement tier
Read moreZylPass
PlannedPlanned identity, access and credentials layer
Read moreThe legacy product index at /products/ is still online so existing links keep working. New work should point at /ecosystem/.