felixgollnhuber.dev · build 2026-07-23 · session #001

Felix Gollnhuber

I orchestrate the agents that build my software.

Software engineer in Vienna, Austria. I ship real products — an energy platform with 510 members, a company running more than 100 energy communities on top of it, and developer tools that keep AI agents in line.

currently: shipping

01 — selected work

  1. PeakShare

    The platform that runs a whole network of citizen energy communities for a single client: 510 members and 2.85 million kWh of locally produced electricity distributed in 2025 — automated meter-data imports, distribution algorithms and monthly billing in a brutally regulated market. It proved what the product should look like.

    main project

    Next.js · energy market · production

  2. colibrie

    Energy communities shouldn't need their own dev team to exist. colibrie is the product version of that idea: metering-point onboarding, market communication with grid operators, distribution logic and billing. Where PeakShare runs one client's network, colibrie is built for many customers with one or many communities each — more than 100 communities live today. We're now rebuilding the whole platform on everything PeakShare proved. I'm co-founder and CTO.

    main project

    Next.js · Go · TimescaleDB · co-founder & CTO

  3. tempoll

    Find a time without making an account. Paint your availability on a live heatmap, share a link, done. Self-hostable and AGPL — scheduling data is nobody's business model.

    side project

    Next.js · PostgreSQL · AGPL · live

  4. dienstweg

    Coding agents are fast. dienstweg makes them follow procedure: one issue as the single source of truth, parallel worktrees, and an ensemble of independent reviewers before anything merges. Zero dependencies, MIT, running in every repo I own.

    tooling

    TypeScript · npm · 0 deps

  5. leitstelle

    A mission-control desktop app for agent work: every session and every open issue across my projects on one board, so I can see what the agents are doing without tailing six terminals. Named after the dispatch centre it behaves like.

    tooling

    Tauri · Rust · Agent SDK · in progress

  6. codex status bar

    Tab away during a long agent turn and still know what's happening: a tiny macOS menu bar app showing Codex's live status — animated while it works, a yellow dot when it's waiting on you, a timer on the current turn. No window, no dock icon; it launches itself with the first session and quits with the last. A Codex port of claude-status-bar, rebuilt on native hooks.

    tooling

    Swift · macOS · Codex hooks

  7. factotum

    npm, but for knowledge. Subscribe to git-backed knowledge repos, mount them read-only next to your private notes, and index everything as one Obsidian-compatible graph that agents can search over MCP. Files stay the source of truth; the index is disposable.

    side project

    TypeScript · MCP · SQLite FTS5 · early

02 — how i work

Everything above shipped the same way. Not by typing faster — by running a better pipeline.

  1. 1

    spec

    Every change starts as a written issue. Scope first, code later.

  2. 2

    fan-out

    Agents work the issue in parallel git worktrees, each attempt isolated.

  3. 3

    ensemble review

    Independent reviewer agents tear the diff apart before merge.

  4. 4

    board approval

    The final gate is human. Nothing ships without my signature.

This page is no exception — .

03 — about

I studied Automotive Computing in Hagenberg (BSc 2025 — thesis on native versus cross-platform iOS development) and I'm now doing my master's in Business Informatics at TU Wien.

Half my work smells like electricity markets. I'm co-founder and CTO of colibrie, where we build the software that lets citizen energy communities exist without hiring a development team — and back home I help run one of those communities myself, which is how billing algorithms and grid-operator protocols became a hobby.

The other half is tooling for agent-driven development — because how software gets built is changing, and I'd rather build the change than watch it.

Felix Gollnhuber seen from behind on a summit, above a sea of clouds at dawn
felix.jpg · above the fog · approved ✓
based in
Vienna, AT
roots
Upper Austria
role
co-founder & CTO, colibrie
bsc
Automotive Computing, FH Hagenberg
msc
Business Informatics, TU Wien
volunteer
citizen energy community
stack
TS · Swift · Go · Rust · C

04 — contact

Say hello.

Email is fastest — the inbox is triaged by an agent and answered by a human.