Projects I Have Done

Paraversume is a realtime online location based multiplayer game where the players command a drone and travel the world fighting the Paraversume Protection Agency and the opposing faction for ruling the world.

The server was done with C#/.NET and data storage is in PostgreSQL. The clients are written in Objective-C / C++ for iOS, Java for Android and the first test client was written for Windows Phone with C#/.NET.

Apple App Store  Google Play  Homepage  

• Android
• C#
• C++
• Game
• GIS
• iOS
• JavaScript
• Maps
• Mobile
• Objective-C
• OpenGL ES
• PostgreSQL
• Windows Phone

Telkussa is a multiplatform TV guide for Finland. It consists of a web site and apps for iOS, Windows Phone as well as Android. It is broadly used and the fastest site to use.

The website is done with ASP.NET Core MVC and the data storage is in PostgreSQL. iOS client was written in Objective-C and Windows Phone client in C#. Android client was written in Xamarin / C#.

Web site  Apple App Store  Google Play  

• Android
• ASP.NET
• C#
• iOS
• JavaScript
• Mobile
• Objective-C
• PostgreSQL
• Vue
• Web
• Windows Phone
• Xamarin

Jokahaku was my testbed for location based services and other search functionalities. It includes a self-drawn map based on OpenStreetMap and Digiroad data for Finland, company / service searching, route searching within Finland, public transport routes in Helsinki, news site searches, product searches and information, food ingredient information, multilangual dictionary etc.

All code is hand-written, no third party libraries are used for any of the functionality. Routing through all roads in Finland with A* algorithm.

Jokahaku web site  

• ASP.NET
• C#
• GIS
• JavaScript
• Maps
• Mobile
• PostGIS
• PostgreSQL
• Web

mIRGGI was the first IRC client for Symbian S60 3rd edition and later ported to work on 2nd edition and some EPOC devices also. It was the most used IRC client for Symbian devices and still has some users even though it hasn't been updated in a long time.

mIRGGI web site  

• C++
• Mobile
• Symbian

Poirot is a game of logic published for Windows Phone. I have also been writing a version of it for iOS and Android for learning new 2D frameworks but haven't finished those yet.

• C#
• Game
• Mobile
• Windows Phone
• Xamarin

Simple but usable chat app for Twitch. Can join channels and chat, shows the regular Twitch emoticons and everything.

• C#
• WPF

A complete solution to manage video streaming through OBS Studio or Streamlabs OBS. Contains a PC app and mobile clients to handle scenes, animations, volumes and lots more. On sale at Steam.

Homepage  Purchase on Steam  

• C#
• Mobile
• WPF
• Xamarin

Comic book reader for CBR / CBZ / CB7 formats. Needed a simple reader and didn't find any so made my own. First with WPF, then ported to UWP also. Maybe for mobile use also someday.

• C#
• UWP
• WPF

Hain was an old project meant to be a multifunctional service, mainly focusing on searches and location services. It was done in a time before GPS so users didn't really have good location services on their phones. I created a system that could collect data about the cell towers from users with GPS and then use that information to locate other users.

The system provided local service searches as well as guidance to get to places. It was also adapted to blind people needs to help them reach places and walk to services around them.

• ASP.NET
• C#
• C++
• GIS
• JavaScript
• Mobile
• Symbian

A blog system that was used by several people to publish their blogs. The system allowed using Nokia's LifeBlog system directly from mobile phones for photos and videos.

Jutut  

• ASP.NET
• C#
• JavaScript

I've written several volume rendering applications, one of which was presented in the Heureka Science Centre as well as traveled around the world as part of the show. The application included a human head which could be cut in different ways and the visitors could see what lies inside.

The system was written entirely in x86 assembly and included basic multitasking system and did all the volume rendering with shadows etc. This was done around 1996.

TReVoR  

• Assembly
• Medical

I built the hardware and software for a simple ECG machine that could handle the measurements from limb connections and produce a six channel graph for on-screen display.

ECG  

• C#
• Electronics
• Embedded
• Medical
• WPF

A simple Java Virtual Machine for Symbian as well as on J2ME platform. It could run simple Java applications with my own system classes. It was meant for dynamic application loading on the Hain platform.

• C++
• Emulation
• Java
• Mobile

A whole web shop system for handling the sales, packaging, invoicing, ordering etc for our PC hardware store. Was one of the first places to allow proper tracking and handling of orders in Finland.

• JavaScript
• PHP
• PostgreSQL

A document handling system for construction company and printing house use. Included everything including storing documents, showing blueprints, editing, revisions, ordering hardcopies, delivery tracking, construction area safety tracking etc.

• JavaScript
• PHP
• PostgreSQL

Translator LT is my test project for translating between languages. It can detect Lithuanian words, stem them and produce basic translation of the words to English at the moment. The target is to make it understand the words properly and translate them in proper form, most likely to Finnish, since Lithuanian and Finnish share many similarities.

• ASP.NET
• C#
• Languages
• WPF

I was active in the demo scnene for some years and produced several intros and demos quite successfully. Mostly written in x86 Assembly in the times of 386 and 486. Here's some examples:

My 4k intro "Optimize" was also in the top three of the IBM Leonardo da Vinci competition in Finland.

Fixup Overflow, 64k Intro, Assembly 1993

Hoax 5 Disk Mag, 1993

GRR!, Demo, Aggressive 1993

Optimize, 4k intro, Assembly 1994 (3rd place)

Images, Demo, Assembly 1994 (5th place)

Rebel Mind, Demo, Assembly 1995 (5th place)

Optimize  Rebel Mind  Images  

• Assembly
• Multimedia

Realtime QR code reading on Symbian S60 platform phones with camera, without slow picture taking. Hand-written image processing for detecting the code, error detection and content handling. Done at a time when most systems requireq slow picture taking and post processing to find the code.

• C++
• Mobile
• Symbian

I needed a fast FTP server to transfer files from a Windows XP machine. The usual FTP servers available didn't really work fast enough, most likely due to them using the OS provided file transfer (which is limited in bandwidth) so I wrote my own.

The server is written in C# and can handle SSL encrypted connections and transfers data as fast as the network can handle.

• C#
• Server

NFS server to share files and other data from Windows computers to *NIX machines. The server can handle protocol version 3 and partially 4. It has a pluggable filesystem module so anything can be plugged into it, not just actual files on a hard drive.

• C#
• Server

HTTP/WebDAV server to handle remote file handling. It can be connected to the same system as the NFS server so it can provide real or virtual files out.

• C#
• Server

Simple IMAP/POP server and client systems to get email messages around. Can be connected to the same virtual/physical data store as HTTP/NFS servers.

• C#
• Server

Emulator for the Sega Master System. Doesn't do accurate emulation but this hardware doesn't really care about it and runs a lot of games.

• Assembly
• C#
• Emulation

Emulator for the Nintendo Entertainment System. Can run a lot of games and has accurate CPU emulation, pretty good graphics emulation, but of course isn't perfect.

• Assembly
• C#
• Emulation

Emulator for the Nintendo Gameboy/Gameboy Color. Quite accurate, but would need a bit more work to be entirely accurate. Runs a lot of games so good enough.

• Assembly
• C#
• Emulation

Emulator for Commodore 64 I wrote for fun. It can handle some cartridge games and basic input/output but has lots of problems. This was just a quick test project to learn new things.

• Assembly
• C#
• Emulation

Emulator for the iPaq 3630 PocketPC(StrongARM 1110). It can almost boot Linux on it but due to it not implementing timers properly it hangs during kernel startup. It was done for fun to learn more about ARM assembly and PocketPC system internals.

• Assembly
• C++
• Emulation

PDF reader that can mostly handle PDF files and render them up to a certain level. Doesn't handle modern formats since I haven't needed it in a long time.

• C#

Component to produce PDF files with text, images etc. It was used in some commercial reporting products as well as internal projects.

• C#

For a construction blueprint system I developed a HP-GL/2 viewer that was used to check plotter files printed from CAD software. It also allowed marking errors and notes on them and synchronizing these to the server for sharing with others.

• ActiveX
• C++

SVG renderer that supported almost all SVG features except animation. This was way before modern browsers(like Firefox) had any support for it.

• C#

I've developed calculation components for applications needing support for arbitraty formulas and data processing. The components can take a written formula, parse it and calculate results using aggregates, regular math operations etc. These components have been used in commercial applications.

• C#

Reader components to read and write Microsoft Office DOC and XLS files. These were used to read information from documents and produce spreadsheet files from tabular data in applications.

• C#

Using my XLS components I wrote a simple spreadsheet program that could open XLS files, render their contents using most of the styles defined, edit contents and calculate formulas.

• C#

Microsoft Office style Windows Forms ribbon component to be used in applications to enhance the user experience. Was used for example in SkanIt software by Thermo Fisher Scientific.

• C#
• WinForms

XML parser as well as an XSLT transform engine in C++ for testing speed and learning the technologies. The parsers worked quite well but weren't used much in actual products.

• C++

Since I don't use SQL Server for my own things I wanted to create a provider for using PostgreSQL with the ASP.NET Membership API. Works well and allows all functionality with my favorite database engine.

• ASP.NET
• C#
• PostgreSQL

COM component to use hand-made Code128 barcode font and published it for free to use. The component was used for producing invoices in Finland with a barcode for simple reading.

• C++

SSH communication library with a terminal emulator done in around 2005. This ran even on PocketPC devices with .NET Compact Framework and allowed connecting to servers and doing whatever was necessary there.

• C#

VNC client to test out the protocol and seeing how it could be made.

• C#

Multi-protocol chat app which could communicate with ICQ, MSN(Messenger), IRC, AOL etc.

• C#

Simple DICOM image reader for my test applications. Used in some volume rendering tests, for example.

• C#

Demo for Gravis Ultrasound to demonstrate their sound card features. The demo was used in trade shows etc.

• Assembly

I've written several 3D systems for demos and game tests as well as music players for several music formats (MOD, STM, MTM, S3M, FAR etc).

• Assembly
• C#
• C++
• Multimedia

Simple X11 server for use on Windows platforms with *NIX systems graphical applications. It didn't support many of the extensions required for actually using such systems but was interesting test.

• C#

Simple Radius server for authentication in a customer project.

• C++