§00   Sunrise Software Oy   /   Est. 2024

Twenty years in clinics.
Two decades overclocking silicon.
Now building software
nobody else would think to build.

Principal Petri Korhonen
Location Tampere, Finland
§01   The connection

Four disciplines. One shared method.

Whatever I do — a body, a benchmark, a codebase, a threat model — the work is the same. Find the pattern. Locate the root cause. Optimise until the system gives everything it can, stably.

01   Psychophysical physiotherapy

Twenty years of clinical work. A human is one system, not a collection of parts. Pattern recognition and root-cause reasoning are the core of clinical thinking.

02   Optimisation

First engines as a teenager, then silicon under liquid helium. How much can a system give, and how stably can it give it? Same question, different substrates.

03   Cybersecurity & health-tech development

My day work: digital health software, built to clinical and regulatory standards. Where an understanding of the human body meets an understanding of the systems that model it.

04   Software

The place where all of the above applies at once. Read the system. Find the root cause. Push past specification.

§02   Selected work

Three products. Each one solves a problem that did not exist five years ago.

MasterForge Pro Master: parametric EQ, spectrogram, loudness metering and AI-driven analysis showing LUFS, True Peak, stereo correlation and a tonal recommendation for a dark-character mix
§02.1  ·  Pro Master Parametric EQ · LUFS −14.5 · AI spectral analysis
§02.1
Live  ·  Paying customers
2023 → present

MasterForge

AI music mastering, for problems that didn't exist a year before it shipped.

When Suno and its contemporaries arrived, the outputs carried a specific kind of brittleness: codec artifacts in the upper mids, harsh transients, collapsed stereo, a dull low end. Existing mastering tools were built for recordings from microphones, not from neural networks. They could not solve it.

MasterForge is built around that gap. A real-time DSP engine, ToneMap with 26 driven controls, AI artifact suppression, vocal clarity stages, multiband compression, mid/side processing, stem-aware cleanup. Four tiers, free to fourteen-ninety-nine.

Real-time DSP engine ToneMap  ·  26 controls Four tiers  ·  Free to Studio Stripe integration
masterforge.app
Quaesitor V2 Resonance mode: three parallel cognitive streams named Alpha Analytical, Beta Synthesiser and Gamma Falsifier, each running a five-phase reasoning cycle, with an Assembler report synthesising their findings
§02.2  ·  Resonance Three specialised reasoning streams · synthesis by Assembler
§02.2
Live  ·  v2.12.11
2023 → present

Quaesitor

A research engine that thinks, falsifies, and verifies — in code and in arithmetic.

Quaesitor is built around an original mode I call the cognitive stream: an agent runs its own chain of thought autonomously, then falsifies its claims, verifies them with code and with computation, and refuses to repeat a question it cannot answer more strongly than before.

The engine now runs three specialised streams in parallel — each with its own role in the reasoning — with falsification memory and an information-resistance engine keeping the conversation moving. The architecture is, in its present form, at the level of current academic research on multi-agent reasoning.

Cognitive stream architecture Three specialised reasoning lines Falsify  ·  verify  ·  compute Information Resistance Engine
quaesitor.app
Luviamo landing page in Finnish with the headline ‘Markkinointi ideasta julkaisuun’, a quiet birch-and-paper visual identity, and a two-track call to action
§02.3  ·  Luviamo Marketing, from idea to publication · launching within the month
§02.3
Launching within the month
2026

Luviamo

One brand voice. The whole marketing lifecycle. Replacing five to eight separate tools.

Most businesses stitch marketing together from a growing pile of separate apps: one for planning, one for content, one for social, one for email, one for analytics, one for brand assets, one for the campaign calendar. Each one has its own login, its own subscription, and its own idea of what the brand sounds like.

Luviamo replaces that pile. A single platform that learns the brand voice and carries it coherently through ideation, planning, production, distribution, and measurement — for solo founders, for growing teams, for companies large enough to need granular roles across marketing, sales, and leadership. The quiet visual identity (birch, paper, rising sun) is deliberate: the tool should disappear into the work.

Brand voice, learned once Full marketing lifecycle Solo to enterprise GDPR-native  ·  Nordic-built
luviamo.app
§03   The rest of the cabinet

Twenty more, in brief.

2023 →
Premius Plus clinical platform
Clinical wellness and rehabilitation platform. Programmes for migraine, tension headache, hip osteoarthritis, jaw & bite, men’s pelvic floor, wellness assessment. Biopsychosocial methodology.
2024
TilastoSilta live
Finnish statistics aggregator across seven sources, with semantic AI search. tilastosilta.fi
2025
HEIJASTE entering public distribution
Psychophysical self-reflection card system. Forty cards, five dimensions, three clinical editions including a veteran/PTSD branch.
2023
HomeTeam beta
Gamified family task system. HomeCoin economy, streaks, push notifications. home.sunrisesoftware.app
2025
VitalTrack beta
Personal training and health platform. TSS, NP, HR zones, PMC chart, Garmin sync. health.sunrisesoftware.app
2025
BrightFeed coming
News aggregation without engagement manipulation. Curated, clean, slow.
Internal tools production
BreathForge Studio, MasterVideo 3D, MasterPromo, PhotoMaster, VideoForge, SongForge, Command Center, Sunrise Marketing Planner, Premius Planner. Built for daily use; not for sale.
§04   Archive  ·  SF3D  ·  2008–2016

Before the software, liquid helium.

Under the alias SF3D I spent eight years in the extreme overclocking scene — pouring liquid nitrogen, then liquid helium, onto silicon to see what it could do at temperatures it was never designed for. The intuition built there — pressure, tolerance, the line between working and failing — is the same intuition applied now to audio DSP, to machine-learning outputs, and to clinical reasoning.

Petri Korhonen pouring liquid nitrogen at the GALAX Overclocking Carnival in Taiwan
GALAX OC Carnival · Taiwan
SF3D overclocking session — liquid nitrogen vapor rising from a motherboard mounted with an LN2 pot
Selected records
2008–2016
Multiple world records in 3D and calculation benchmarks
2010
First 7 GHz quad-core CPU, cooled with liquid helium
2012
SuperPi 32M world record, Ivy Bridge class
Principal sponsors
Intel AMD Asus ASRock Foxconn G.Skill Kingston Gigabyte MSI
CPU-Z and Super Pi 1.5 XS windows showing an Intel Core i7 3770K Ivy Bridge at 6902.25 MHz completing the 32M calculation benchmark in 4 minutes 47 seconds
§04a  ·  Screenshot SuperPi 32M, 4m 47.031s i7 3770K @ 6.90 GHz · 2012
HWBot Professional Overclockers League showing SF3D in third place worldwide with 1335.90 points
§04b  ·  Ranking HWBot Pro League, world #3 SF3D · 1335.90 pts
SF3D overclocking bench in Las Vegas at the AMD world record event, with insulation, a fan and three thermometers reading sub-zero temperatures
§04c  ·  Bench AMD world record event Las Vegas · three-point thermal
EK Water Blocks and SF3D Triple Point EVO four-module liquid nitrogen pot installed on a motherboard
§04d  ·  Product Triple Point EVO SF3D × EK Water Blocks · CPU LN2 pot
2008 → 2013
SF3D OC  ·  Pre-overclocked systems
Factory pre-overclocked and tuned PCs sold in Finland through Jimm’s PC Store. The SF3D.fi site ran as the public storefront and reference archive until 2013, when the venture was closed by choice.
2010s
SF3D × EK Water Blocks  ·  LN2 product lines
Co-designed liquid-nitrogen cooling product lines manufactured with the Slovenian company EK Water Blocks and distributed internationally to the enthusiast overclocking market. Triple Point EVO for CPUs, Critical Point for GPUs.
3DMark benchmark running during an SF3D overclocking session
Benchmark session · 3DMark
Temperature display reading minus 234 degrees Celsius during liquid helium cooling
Liquid helium · −234 °C
SF3D overclocking bench with dual Radeon graphics cards and a multimeter reading sub-zero temperatures
Dual-GPU bench
EK Water Blocks and SF3D Critical Point liquid nitrogen GPU pot on an AMD Radeon graphics card with a thermocouple attached
Critical Point · SF3D × EK
§05   Approach

Three rules. No exceptions.

01
I do not prototype. The first version ships. If a product is not worth releasing, it is not worth building.
02
Every tool I build is one I use daily. The customer and the developer are the same person, separated only by time.
03
If it is not better than what exists, I do not publish it. Sameness is not a business model.
§06   Correspondence

For serious conversations only.

If the work above resembles something you need, or something you would like to see done properly, write directly. No forms, no calendars. A sentence or two is enough.

Colophon