merenparras.fi

Merenparras

A workshop at the edge of the sea. Small tools, careful automation, and a few experiments left running.

Built and maintained by Mike — helping people, building systems, and occasionally turning a solved problem into software.
Espoo, Finland.

Projects

What lives here

These are working things — some useful to others, some built for my own purposes, some somewhere in between. Each one started as a problem I wanted solved.

Most of my career has been spent helping people navigate technical systems. Building software has become my way of improving those systems, automating them, or occasionally replacing them altogether.

Finnish Tax Administration Live

Vat-app

Fully automated VAT return filing for Finnish small companies, talking directly to Vero's production API. No accountant, no portal login, no forgotten deadlines. The first automated production filing ran on 26 May 2026. Built from scratch: PKI certificates, Supabase-encrypted storage, GitHub Actions, and a three-step onboarding flow. This is the one I'm most proud of.

Roadmap & details

Political analysis Daily updates

US Stability Tracker

I outsourced my US inner-politics news reading to Claude. Every day it ingests the news cycle and plots the Trump administration's political stability on a custom 1–6 scale: 1 is total party obedience, 6 is an open challenge to the leader's authority that forces an immediate reaction. The tracker updates automatically and the graph tells a more honest story than any headline.

View the live sheet

Household tool Ready to use

Chore Scheduler

Generates a full yearly schedule for dividing up household chores across any number of roommates and tasks. Fully customisable, print-friendly, and runs entirely in the browser. No accounts, no data collected — just paste in your people and your chores.

Open scheduler

Board games / Go

GoR Calculator

Takes a tournament walllist exported from OpenGotha — the standard software for running European go tournaments — and calculates the GoR (Go Rating) change for each player by cross-referencing the European Go Database. Useful after club tournaments and local events where you want to know the rating impact before results are officially processed.

Open calculator

Live stream Live

Birbcam

A blackbird pair built a nest and agreed to be filmed. Two eggs have hatched — two pink blobs, doing blob things. Two more eggs still waiting. Mum visits often; dad shows up when he feels like it. No sound, no commentary, no plot — just the nest.

Watch live

Personal Not public

Wiki

Less a project, more a running diary. A personal wiki where notes, half-formed ideas, and project logs accumulate over time. Mentioned here for completeness — it's not open to visitors, but it lives at this domain and it's where a lot of the thinking behind these other projects started.

Go there anyway