
Software & systems engineer
Johannes Franz
Above the cloud, plate 01: Sea of cloud, first light46°01′N 7°45′E
I build software that sits close to the machine: storage engines, build tooling and the systems underneath products. I also photograph, mostly mountains and cities, and publish both here.
Photographs
All seriesWork
All work- 2026This websiteStatic siteA photo and writing site built as a survey map series. Every page states its own weight, measured at build time.
- 2025–LedgerStorage libraryAn append-only write-ahead log for Rust services, with group commit and checksummed segments.
- 2024TidewaterBuild toolingA content-addressed remote cache for monorepo builds, served from object storage.
- 2023ContourCommand-line toolRenders contour-line maps as SVG from open elevation data, for printing at any scale.

