Less friction. More building.
Engineering manager · Developer tools maker · Ansbach, Germany
Website · Projects · Writing · Reading
I lead Platform Engineering at Tradebyte, where we're building an Internal Developer Platform to help engineering teams ship software with less friction.
Outside work, I build open-source tools with a shared shape: local-first, one binary, plain files you can read in Git, and usable by people and AI agents alike. I like small, focused utilities. This occasionally escalates into building a shell, or a programming language.
| If you want to… | Take a look at… |
|---|---|
| Keep your todos in your repo | tdx: a terminal todo manager with Vim-style navigation. Your tasks stay in plain Markdown. |
| Launch apps with a key sequence | Keywink: a native macOS launcher. Type a few letters; the on-screen guide shows the way. Config stays in JSON. |
| Write Markdown in a calm, native editor | Focal: a macOS Markdown editor you open from the terminal. Live rendering, and files are saved exactly as you wrote them. |
| Remember why you decided something | vrdx: engineering decision records in Markdown, with a local dashboard and structured context for agents. |
| Turn architecture into diagrams | Sceno: describe it in KDL, preview locally, export SVG, PDF and slides. Agents can iterate until it validates. |
| Give an agent credentials without handing over the vault | Latchrun: scoped sessions from 1Password or pass, approved commands only, replay-safe. |
| Ship a Python CLI as one binary | Kipferl: write Python-style scripts, get a fast standalone executable. |
| Keep every repository on your machine in order | repot: a predictable home for every checkout, parallel fetches, a status report, and a fuzzy picker to jump between them. |
| Run a team chat on your own server | Sideporch: channels, threads, polls and search in one Rust binary and one data directory. Imports from Slack. |
| Explore a different kind of shell | Quirl: familiar Bash commands, typed data pipelines, and Lua extensions. |
| Try a small new language | Morrow: statically typed and functional, with Python-like syntax, compiled to native programs. |
Each of them has a page with pictures, the story behind it and live numbers at nheer.com/projects.
- speed-comparison: the same computation across 75 implementations. Eight years old and still surprising me. What a benchmark measures.
- Kindred: a family tree the whole family can open, with houses, coats of arms, photographs and the stories that go with them. Self-hosted.
- Shoalow: a deep-sea card game for 2 to 10 players in the browser, with bots.
- Overhead Overdrive: a 3D overhead-projector racing game set in my old school. The story behind it.
- Spokn: a macOS text-to-speech panel with karaoke-style highlighting. Swift and AppKit, no cloud.
- dotfiles, for the terminal-curious.
Building tools: Rust · Go · Python · TypeScript · Swift
Building platforms: AWS · Docker
Away from the keyboard: A book. Often followed by another book.