goonK
01 / Introduction

Fredrik — developer · photographer · nerd

Software developer. Photographer. Occasional chaos engineer.

Making websites do things since Internet Explorer 4 was a problem

Full-stack developer with 28 years of building business-critical web systems: ERP and government integrations, multi-tenant platforms, and the legacy code nobody else wants to touch. I enjoy owning things end-to-end, debugging weird production issues and keeping deployments boring. I also take photos and occasionally break things in my homelab.

hej@goonk.seGitHubLinkedIn

02 / Selected Work
A long-running PlayStation site, rebuilt for what comes next.
PSbloggen.se — the redesigned homepage, a review page with the SVG score arc, and the curated collections page

Featured Project

PSbloggen.se migration

Moved a ten-year PlayStation enthusiast blog's content off WordPress and built it a full IGDB-powered editorial platform: curated collections, a daily guess-the-game feature, PS Plus catalog tracking, and reader accounts, all self-hosted. Running on staging; the switch to psbloggen.se is still to come.

Built withReact · Astro · IGDB · WordPress migration · self-hosted
StatusActive
Period2026 – present
Diariet
A bureaucratic horror game. Route five shifts of incident reports about the edges of the unexplained — and never get the full picture. That's the job.
drift
A visual-regression watchdog for the rest of the self-hosted family: screenshots every live project on a recurring interval and flags when a capture drifts from the last one — a CSS regression, a broken deploy, a dead API leaving a widget empty, silent otherwise.
wisp
Short-lived, end-to-end encrypted file sharing. Upload once, the recipient retrieves it later, and then it's gone for good.
03 / Recent Wins
  • Found and fixed a CI build-cache bug(a GitHub Action silently tearing down a persistent build cache every run) that cut a 2-minute CI build down to under 40 seconds
  • Publishing without a redeploysaving a post triggers a debounced background rebuild behind a filesystem lock; the old build keeps serving until the new one is ready, and only a brief Astro restart separates the two
  • Single-command Docker deploy with nginx routing both frontendsplus two independently-deployed sibling services (a review-pipeline bot and self-hosted analytics) over a shared Docker network
See what didn't work too →
04 / On the Workbench
  • PSbloggen.se migrationActive

    Day-to-day upkeep: tidier WordPress RSS imports, a review embargo in the Discord review bot, and a theme toggle with its light-theme fixes.

  • goonk.seActive

    An editorial pass across the site — one masthead style, readable labels — and a homepage that loads about twice as fast on mobile.

Homelab / Unclouding

Running my own stuff again because cloud bills are silly and self-hosting is fun. More →

See what I'm up to →
05 / What I Do

  • Build

    Frontends, backends, APIs and databases.

  • Ship

    CI/CD, containers, infrastructure and deployments.

  • Find the weird thing

    Production debugging, performance, and old systems nobody wants to touch.

  • Keep it running

    Monitoring, observability, and boring operations.

Tech:

Java · C# · TypeScript · JavaScript · SQL · React · Spring Boot · .NET · Docker/Podman · Kubernetes · CI/CD

Full CV →
06 / Away from the keyboard

Photography, music and other forms of therapy.

View photos →

Music I'm listening to while coding

Pulled live from Last.fm — what's been on repeat this past month, or whatever's playing right now.

Loading…
07 / From the Notebook
Essays, notes and occasional rambling.
Latest from the blog

Vad jag gjort med den här sajten på sistone

En personlig sajt är aldrig riktigt klar. Här är vad som hänt den senaste månaden, mer eller mindre i kronologisk ordning.

Read post →
Latest from notes

Vi skulle aldrig göra om samma misstag

Det började egentligen med att ett annat företag gick i konkurs.

Read post →
08 / Explore
You've reached the weird part of the website.

The useful stuff ends here. The interesting stuff doesn't.

About64KB RAM, bad deployment decisions, and other formative experiences.FailuresBugs, dead ends, wrong assumptions, and what they taught me.ConstellationHow the projects connect.GamesThings I've made playable.HomelabThe machines I argue with.Under the hoodHow this site actually works.WrappedThe last 365 days — music, code, and words.AtlasGit and listening history, cross-referenced.RewindLooking backwards.Then / nowThings change.ChangelogWhat I've been doing to this place.