WORK_
Public systems you can inspect and client outcomes you can interrogate. Different forms of evidence, held to the same engineering standard.
Open Systems
// Public engineeringLocal-first infrastructure for understanding code, coordinating agents, evaluating results, and preserving the knowledge behind the work.
Hayvenhurst
A live code graph for people and coding agents.
$ hayven impact <symbol> --depth 2Inspect build →Guignet
Benchmark AI agents on the code that actually matters—your own.
$ guignet mine && guignet gateInspect build →Sirius Forester
The local foreman for parallel coding agents.
$ sirius doctorInspect build →Ametrite
Shared work and memory for coding agents.
$ amt claim --agent worker-1Inspect build →Catryna Wikinelli
Documentation that lives with the code—and gets used.
$ search_docs query="architecture"Inspect build →Client Outcomes
// Selected engagementsSelected engagements showing the operational problem, the system delivered, and the outcome measured.
Music Production140Catalog and Booking for a GRAMMY-Winning Engineer
CASE_SND_005 // 2026Identity site, a 140 record filterable discography, and a deposit-first booking pipeline for Angelo Carretta.
Published with the client's permission. Angelo Carretta is named here at his request and continues to refer work to bc9. Chart credits shown on his site are his own engineering credits, not bc9 engagements.
Automotive Services85%CarbillPro: CRM and Follow-Up Automation for Auto Service
CASE_SVC_004 // 2025A CRM rebuild and automated post-service follow-up for a regional auto service group. The system now runs as CarbillPro.
Published with the client's permission. The system built in this engagement now runs as CarbillPro. Implementation details of the stack are withheld.