cyberwitchery lab

independent product & consulting studio

we build hard software, and help teams build theirs.

we maintain two products of our own and consult across network automation, security, developer tooling, and systems.

consulting

hire us to design, build, or review. we use our own tools where they fit and work with what you already run where they don’t.

network automation & integration

data models, inventory migrations, and integrations between inventory, fabric, and operational tooling. often built on alembic, never dependent on it.

security architecture & review

architecture and threat-model reviews, application security strategy, and an isms and secure development lifecycle your teams can work with.

technical due diligence

assessment of code, architecture, delivery, and engineering organisation for investors and acquirers.

systems & developer tools

languages, compilers, developer tooling, and systems software: design, implementation, and review.

talks & hands-on workshops

each topic runs as a talk, a half-day, or a hands-on full-day workshop, on site or remote.

networking

  • data-model-first network automationwhy automation should start from a model of the world, not scripts.
  • from source of truth to fabricbuild a working pipeline from inventory to device configuration.
  • safe network config changediff and review config changes before they ship.

security

  • practical threat modellinglightweight, repeatable threat modelling your team can run in sprint cadence.
  • isms & ssdlc you can work withturn “we should do security” into a minimal isms and an ssdlc that holds up in practice.
  • secure coding workshopreview and write security-critical code with confidence. the bugs that matter, and the patterns that prevent them.
rates for talks & workshopsby format
talk · 45–60 min
€1,900–2,400
talk · 75–90 min
€2,400–2,800
workshop · 2–4 h
€2,500–3,000
workshop · 6–8 h
€4,200–4,800
remote delivery
20% less

people

veit heller

veit is a technologist with a fascination for the weird and wonderful. he’s worked across domains in programming language & tooling, security, and network automation.

erik svedäng

erik is a programmer and designer whose work ranges from programming languages and developer tooling to games and experimental software. at cyberwitchery, he works on alembic.