Einar Gudni

Reykjavíksunrise --:--sunset --:--

hire

I build solutions that fit your systems.

Product features, internal tools, integrations and, lately, AI agents, with the evals and guardrails that make them safe to ship. Software developer at Maul and independent contractor.

Builder. Curious, tinkerer, late bloomer & nerd.

Work with meUse cases

Use cases

All use cases
  1. Sep 2026Draft with AI for Gigover's create formsFive draft callables in production behind the assistant allowlist, with schema-checked prompt rules, a relative-date fix and an acceptance eval harness.Gigover · agents
  2. Sep 2026Proof over trust — letting an agent verify Maul's admin appWriting the feature map found five real product bugs before any test existed, including an edit form that silently wiped a company's billing discount.Maul · agents
  3. Jul 2026Sterkir pabbar: a scoped AI assistant inside a coaching platform for dadsLanding page live on HTTPS with a CMS the coach edits himself; members' app in production at app.sterkirpabbar.is; assistant passing 57 of 63 acceptance evals with zero critical failures.Sterkir pabbar · agents

Things I've built

13
  1. postureA macOS app that reads your AirPods' motion sensors and tells you when you've been slouching, from a live strip beside the notch.
  2. pdlTracks a weekly padel group's matches, standings and streaks. Mobile-first, on Cloudflare Workers and D1.
  3. eggoThe Icelandic landing site for Eggo, a small software and tech consultancy, with a working contact form.
  4. team tallyAn offline, no-account mobile app for tracking player fines in team sports, with a waitlist landing page.
  5. lesA native macOS RSS and read-it-later app: OPML import, bookmarks, Readability article text and full-text search.
  6. jstopA macOS menu bar app that monitors node processes. Like htop, but for your Node.js toolkit.
  7. ts-miniInteractive visualization of the TypeScript compiler pipeline. Explore how code gets scanned, parsed, and emitted.
  8. dotfilesMy personal development environment. Neovim, tmux, zsh, and macOS configuration managed with care.
  9. einargudni.comThis site. Built with TanStack Start, Velite for MDX content, and Tailwind v4. Deployed on Cloudflare Workers.
  10. todo-systemA CLI-powered task management system with Taskwarrior, syncing to Things 3 and Asana.
  11. babyA countdown and tracker for the newest member of the family.
  12. sól og bjórRanks Reykjavík bars by the cheapest beer and the most sun right now. Mobile-first, with a sun-aware shade map.
  13. nidoA private little app for remembering who gave you what when a baby arrives — so the kindness gets thanked and the loans get returned.

Writing

All writing
  1. sól og bjórPost
  2. nidoPost
  3. karabinerPost
  4. Middleware - React routerDeep dive
  5. React Server Components: A Deep DiveDeep dive

Experience

  1. 2020–MaulSoftware Developer
  2. 2022–2024TiffinSoftware Developer, remote
  3. 2022–FreelanceSoftware Developer, remote

Elsewhere

  1. AboutWho, what, why
  2. NowShort-term focus
  3. SomedayLong-term focus

Health

Whoop
75%

Sleep

7.1 hrs

89%

Recovery

HRV 61ms · RHR 46

2.6

Strain

Stats from Sun, Oct 4

30-day avg · Recovery 62 · Sleep 5.9h · 18 workouts

Sleep is my recovery lever: nights of 7h+ average 85 recovery vs 57 after short ones — a +28 swing, surfaced by my life-os.

Activity

GitHub

5,232 contributions in the last year

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Work with me

Open for opportunities

Tell me about the problem and the system it lives in. Sometimes the answer is an agent; often it is plain, careful engineering.

Or write to einargudnig@gmail.com

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