Trust is the
hard part.
I build for it.
I’m André. I build tools that put people in control of AI—and teach teams how to use them.
01 / Selected work
The ideas. Running.
A client said I never worked those hours. Now the tool proves it.
xNAUT runs a fleet of coding agents. Every action lands in a hash-linked record whose head is signed on a Securosys HSM in Switzerland. You verify it in your browser or with one line of OpenSSL. It never goes through me.
MIT · macOS + Windows · 51 releasesExplore the build ↗- #041214:02:11claude-codewrote ledger/verify.rs +118 −69f3a…c1d2e71b…4830
- #041314:02:19codexcargo test · 64 passed, 0 failede71b…48303c0d…9a7e
- #041414:02:33claude-codefiled XNAUT-212 via MCP3c0d…9a7eb8e2…07f1
- #041514:03:02HEADhead signed · Securosys HSM · CHb8e2…07f1sig 3045…
$ openssl dgst -sha256 -verify xnaut.pub -signature head.sig head.jsonVerified OKCheck it at xnaut.dev/attest, or with stock OpenSSL against the published key. No account, no API, no xNAUT installed.
Engram
AGENT INFRASTRUCTURE
A memory layer that outlives the tool you’re using.
Apache-2.0 coreNautGate
LLM GATEWAY · EVIDENCE
Routing, cost and evidence for every model call.
AGPL-3.0NautLoop
CONFIDENTIAL COMPUTE
Sovereign agents inside the boundary you define.
Source not publicSmall tools, shared freely. Find something useful.
Explore the collection ↗02 / Where I stand
August 2026
Sovereignty is a boundary you draw before the first line.
Where the model runs. What data leaves. What gets recorded. Those are architectural decisions—and the questions behind my work.
Read “Sovereign sandboxes for AI agents” ↗
Less “imagine if”.
More “there it is”.
Keynotes that make the hard questions clear. Hands-on workshops where we build the thing together—and your team leaves with it running.
German + English / Zürich + beyond04 / Field notes