Logiscool needed a new version of Scoolcode, which would support coding in Python. The task was the design of a Python-like language and the implementation of a new compiler version that would support transforming Python code into the existing AST, thus allowing these new projects to use the existing runtime.

The solution I've designed is similar to the .NET framework. Each language has its custom grammar and commands but still compiles to a shared IL, which the runtime can execute. This allows the system to support cross-language imports so a StageScript project can use parts written in StagePython and vice versa. Plus, StagePython projects can import native Python modules.

It was a challenging project due to small but essential details, like built-in functions with the same name but different functionality in the two languages and the requirement of much stricter type checks in Python.

The result is not just an extra language but a much smarter compiler (which detects more typing errors) with almost 100% test coverage, thanks to a new unit testing framework that supports reflection and expected error outcomes.

The introduction of the new language and compiler was a great success based on the feedback from content creators, trainers, and students.

Logiscool Magyarország

Tekintsd meg a Logiscool oldalát, és válaszd ki gyermeked számára a legjobb programozó kurzust, workshopot vagy tábort!

An experiment with online branding, product design, and webshops.

Product design and rendering

We've designed several patterns and figures for pillows using Adobe products and created marketing materials using Blender.

Webshop design and setup

We've designed and set up a complete Shopify webshop with a customized theme.

Social campaign

We've created Facebook and Instagram pages and managed a social campaign, including posts and paid targeted ads.

Tales of Bunabee

Tales of Bunabee. 133 ember kedveli. Mackó ás Nyuszi mindennapi, de egyben nem mindennapi története.

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This is one of my most complex experiments, which is indeed two experiments in one: a domain specific language (DSL) for accountants and a transactional UI.

Domain Specific Language

For the language I used the brilliant JetBrain MPS, which provides an IDE for creating and using DSLs. I've created a subset of a natural language (Hungarian) which enables the user to define accounting rule sets.

Once ready, the rule set can be compiled into a JSON file, which after feeding it into the Accounting Engine, can be used to calculate TAXes for companies, process invoices or similar tasks.

Transactional UI/UX

The UI part of the experience is about the customers of the accountant. My aim was to create a user experience for this system which is more of a conversation and less a traditional UI. By the way, I wanted to reproduce the way customers communicate with accountants: email and phone.

So the system uses magic links for authentication and the UI is basicaly a set of emails. When the system requires input (information/decision) it sends an email, which contains links for the different options in a decision, or a single link to a data input form.

For a system like this a serverless implementation is very natural. As I've already tried Azure Serverless, this time I went with Vercel Functions and to make the project even more interesting used SvelteKit.

Results

As making a real product from this would require a team and a lot of time, I've decided to only create a small MVP. The system can handle a single way of taxation and calculate the amount of tax to be paid based on real invocing data (from the system of the local authority, NAV) and real account data (using Open Banking APIs). The calculation is executed in an async way, and the user is notified via an email message containing a magic link, which takes her to the generated taxation report.

Tales or Dare is one of my experiments. The aim was to create a role-playing game for parties where tasks are given and decisions are made using a chatbot with consequences in real life (like having to drink or being motionless for 5 minutes).

The system provides a generic platform for building thematic games, like a Harry Potter game with spells and magical creatures, or a show simulation like Big Brother, or almost anything that a creator can imagine.

Using Messenger allows the players to enjoy the game without installing anything new on their phones.

The editor is built around the concept of flow programming, and the game can be built from multiple parallel flows where specific points require interaction from a single or multiple players.

The backend is built using serverless technology using a stateful approach where the state is preserved in storage while the server waits for user input. This way, the execution time - and the cost - of the backend is minimized.

Real-time distributed Redux actions with extras. The LiveOps framework is a closed-source backend module built using NodeJS, SocketIO, and TypeScript, developed for real-time distributed apps.

The base concept is very similar to Playfab, but it is built with Redux and React in focus. It allows actions to be distributed between clients in real time and supports server-side triggers for features like achievements and notifications.

It can handle many parallel actions without problems caused by out-of-order processing and long-running tasks without slowing down the whole system.

This library allows frontend developers to build complex real-time applications quickly as the backend manages all complexities automatically. Here are a few experiences powered by the framework:

API Core started as one of my open-source experiments. I started this project years before Facebook announced GraphQL and validated my project. The aim was a generic query language for APIs instead of predefined API routes.

The result is a framework for building high-performance dynamic multi-level APIs implemented as microservices, plus automatically generated documentation and developer dashboard. It is compatible with Express, MongoDB, Redis, and other frequently used parts of the backend JS stack.

The documentation is generated using a closed source module from the source code of the API services and automatically aggregated into a central developer hub to make the developer experience seamless.

The dashboard is also a closed source part of the system, which automatically generates list and editor views for every service using the type and UI model information provided by the API services. While it is generated automatically using custom UI models, it is also highly customizable.

GitHub - ajuhos/api-core: Model-based dynamic multi-level APIs for any provider, plus multiple consumption channels

Model-based dynamic multi-level APIs for any provider, plus multiple consumption channels - GitHub - ajuhos/api-core: Model-based dynamic multi-level APIs for any provider, plus multiple consumpti…

GitHubajuhos

Logiscool required a solution to teach kids coding who had already mastered Scratch but were too young and inexperienced to switch to a real coding language. My task was to find and implement a solution quickly.

I created a custom IDE (integrated development environment) where kids could seamlessly transfer between visual block-based coding and real text-based coding thanks to the real-time sync between the views.

The custom StageScript language extends JavaScript with custom grammar to hide the language-specific complexities and allow kids to focus on learning the basic building blocks of coding, like if statements, variables, and functions. The runtime is powered by PixiJS and enables kids to build great games using features like 2D physics, camera, parallaxes, and cloud variables.

Thanks to Scoolcode, today Logiscool is the leader in the field. It is used by about 50,000 kids worldwide every day. The idea was validated by Microsoft and others, who made similar products in recent years, but thanks to the modular compiler and runtime architecture Scoolcode is still years ahead of the competition.

Logiscool Magyarország

Tekintsd meg a Logiscool oldalát, és válaszd ki gyermeked számára a legjobb programozó kurzust, workshopot vagy tábort!

Maptiv was a custom-developed mapping solution for conferences. It had an easy-to-use editor for building maps, an online dynamic map view, and support for exporting maps for print.

Tensi Holiday required three new websites for its extensive collection of program packages. We designed and delivered these using cutting-edge technologies and unique UX.

All sites featured bold designs with innovative navigation and filtering solutions, like map views and graphs.

Each site had a different design for mobile devices.

Tensi Holiday - Minőségben utazunk!

Tensi Holiday utazási iroda. Kínálatunkban az alábbi ajánlatainkat találja: Hajóutak, akciós ajánlatok, Disneyland Párizs, esküvők és nászutak, körutazások.

Tensi Kft