We don't just rewrite it.
We prove every byte.
Deterministic transpilation, not probabilistic guessing. Every program we produce is verified against your real system — byte for byte — before a single line cuts over. Then a live governance dashboard sits on top of the modernized mainframe.
assess → transpile → run → prove → govern
One pipeline,
end to end.
From a legacy estate you're afraid to touch, to a modern Rust system you can govern — with proof at every step.
Assess
// know it before you touch itWe map the estate first — every program, dependency, and single point of failure — and scan the source for what's convertible. You see the blast radius of a change before anyone makes one.
Transpile
// deterministic, not AIOne engine auto-detects and lowers COBOL, PL/I, RPG, REXX, CICS and JCL to modern Rust — or Java, or C++17 — through a shared core and runtime. Same input, same output, every run. No LLM, no temperature, no hallucinated business logic.
Run
// the whole estate, on the new stackBatch and online workloads run on a Rust runtime with real CICS, DB2, DL/I, VSAM and BMS support — driven by a job spine that executes your JCL flow. Not isolated programs in a demo; the actual system, end to end.
Prove
// the moatEvery program is mirror-run and compared byte-for-byte against your real system, against real oracles — not our own say-so. If a single byte differs, it does not pass. Every output carries a tamper-evident, signed certificate of exactly what was verified.
Govern & cut over
// modernized, and controllableThe switch withholds on any divergence. And on the modernized side, our Asset Governance Platform plugs straight into the new Rust mainframe — a live dashboard for assets, inspections, approvals, immutable audit and access control, from the moment it goes live.
Proof, not slides.
We took real CMS Medicare ESRD pricing logic, transpiled it, and reproduced the original compiled system's priced output byte-for-byte — across a seven-year pricing series, to the cent — with no licensed compiler in the loop.
Reproduce it yourself.
The whole proof runs in Docker on your machine — one command pulls a prebuilt image, compiles every program, runs each one, and diffs against the reference output. You don't take our word for it; you re-run it.
Modernized —
and governable, day one.
Most modernizations hand you a new black box. Ours hands you a dashboard. After cutover, the Asset Governance Platform plugs into the new Rust mainframe over a signed, key-authenticated API — no shared database, no code changes on either side.
- Assets sync both ways — the mainframe pushes records in; the platform sends signed webhooks back.
- One dashboard for asset lifecycle, inspections, approvals and reporting.
- Immutable, tamper-evident audit on every change.
- Deny-by-default access, encrypted at rest, air-gap capable.
system of record · business logic
dashboard · inspections · audit · RBAC
Make us prove it on your code.
The fastest way to know it's real: send us one module — one program, one report, one calc. We transpile it, run the parity harness, and hand you back the modern code plus the byte-for-byte proof. No deck. No commitment.
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