Sunrise Software · Petri Korhonen

Four disciplines. One shared method.

Whatever I work on, a person, a benchmark, a codebase, a threat model, the work is the same. Understand the system first. Find the root cause. Then optimise until the system gives its best results.

01 · Psychophysical physiotherapy

Twenty years of clinical work with people. A human is one system, not a collection of parts, and understanding how they communicate is half the work.

02 · Optimisation

Engines, then silicon at cryogenic temperatures, now inference on a GPU box in the next room. How much can a system give, and how well can it hold it?

03 · Cybersecurity & health-tech

Day work: digital health software to clinical and regulatory standards. Patient data, audit trails and the security review are part of the product, not a layer added afterwards.

04 · Software

Where all of it applies at once. Read the system. Find the root cause. Push past specification.

Products people pay for, and the instruments behind them.

Commercial products

Pro Master · EQ, liveVisit ↗

Live · paying customers · 2024 →

MasterForge

Mastering built for AI-generated music.

AI-generated music carries a brittleness microphones never had: codec artifacts, harsh transients, collapsed stereo, a dull low end. MasterForge was built for that gap, and in September 2026 its free tier was rebuilt to measure the track first and derive the whole chain from what it hears.

Free · Starter · ProOne-click or full controlRuns in the browser

masterforge.app →

Intro · luviamo.app ▶ Visit ↗

Live · 2026 →

Luviamo

One brand voice. The whole marketing lifecycle: ideation, copy, visuals, scheduling, publishing and measurement in one place.

Five rooms: ideate, plan, produce, publish, track. A single platform that learns the brand voice and carries it through the whole lifecycle, publishing to Facebook, Instagram and newsletters. Built for Nordic small businesses.

Brand voice, learned onceFacebook · Instagram · newslettersSolo · Team · Business

luviamo.app →

Tools and research instruments

Somnus · local AI server · always onVisit ↗

In use · 2026 → · home AMD box

Somnus

The local AI server. Always on, in the next room, and part of every project.

Somnus runs on a machine at home: two AMD GPUs, local models, always on. It is the core of the scientific projects and takes part in all the work: it generates candidates, screens them locally for almost nothing, and hands only the best to the expensive models. What survives is remembered.

Two AMD GPUs · 52 GBThree-tier funnel · local firstAMD R9700 sample program · white paper in progress

Lab notes · sf3d.fi →

Atlas · the workspaceAccess-protected

In use · 2026 →

Atlas

The backbone of the work: every project, every partner and every decision in one place, so nothing drifts from what matters.

Atlas is how the work is run. Partners and projects work inside it: who is doing what, what is waiting on whom, which decisions are open and which are made, all in one place, on the phone as well.

It is also the library and the second memory: everything built, with the reasons behind it, kept beside the code. And it carries its own tools for validating an idea and building it, so a project stays on its core instead of drifting.

Projects · partners · decisionsThe library of everything builtIdeas validated before they are built

Access-protected · shown to partners

More products, tools and instruments.

Thirteen pathogens across twenty-three wellbeing regions from THL clinical and wastewater signals, a traffic-light state per region, opt-in email alerts. The light was redefined in September 2026 from a four-season backtest. Installable, works offline.

13 pathogens · 23 regionsEmail alerts for your regionWorks offline, installable

virustutka.app ↗

Virustutka: a map of Finland with each wellbeing region coloured by its respiratory-virus light, most amber, three red

Built on MML Maastotietokanta and Digiroad rather than OSM, so gravel and small forest roads are known across the whole country. Turn-by-turn with Finnish voice guidance, GPX and FIT export, loop planning, hill-aware routing.

Whole of FinlandFinnish voice guidanceGPX and FIT export

ultragravel.app ↗

Semantic search over eight-plus public sources, shareable SVG, CSV and PNG export. No login, no ads.

Eight-plus sourcesSemantic searchNo login, no ads

tilastosilta.fi ↗

TilastoSilta: the front page with a statistics search and featured charts

Lab notes, an autonomous news agent under a hard cost cap, and the SF3D heritage: from world records to world models.

Lab notesCurated AI research feedFrom world records to world models

sf3d.fi ↗

SF3D AI Lab: the front page with lab notes and the research feed

A magnifier over any part of the screen, a panel of every running coding session with its quota and burn rate, and the agent's edits as a live diff. Built for my own daily use. Open source, Apache-2.0.

Magnifier · sessions · live diffNothing leaves the machineOpen source, Apache-2.0

github.com/Sunrisesoftware-app/reviewglass ↗

Finnish defence subcontractors first. The vendor never touches the customer's classified material. Sales demo in production since August 2026; product core under way.

Runs inside the customer's networkNo outbound connectionThe vendor never sees inside

Repairs what AI generation and codecs break in audio, before mastering. Four repair stages and a Surgical De-tone panel for stubborn artifacts.

Companion to MasterForgeFour-stage repair pipelineSurgical De-tone

spectral.masterforge.app ↗

SpectralForge: a spectrogram with per-band scores and the repair pipeline controls

How the work gets done.

01Understand the person before the problem. Every product starts with someone, not a feature list.

02Get the most out of the system. Then make it feel effortless to the person using it.

03If it is not better than what exists, it does not ship. Sameness is not a business model.

Imagination is the limit. Build, then enjoy the world.

Build

Claude Code sessions in git worktrees, one branch and one pull request each, squash-merged. The agent types; I read, decide and merge.

Gate

CI is the gate, not the prompt: lint, types and tests in every repo, committed drift and render baselines in Atlas, a security lens on a schedule.

Run

Cloudflare Pages, Workers, D1 and R2 for the web; Hetzner for Python engines and routing; a home AMD box for local inference; Tailscale between them.

Record

Every repo carries a SEED, a session changelog, machine-readable build info, lessons and decision records. Atlas mirrors them; the repo is the truth.

Understand the human first. Then build the better product for them.