Roman Prokofyev

Publishing Zima Weather to the LG TV Store

Prior to the digital world, we had few options for learning a foreign language – a book or a teacher. That still works well, but requires a time and discipline. Modern life is busy and fast-paced, and we are searching for quick shortcuts to achieve anything, from learning a foreign language

Origins I started Zima Weather in December 2020 by being inspired with the following Animated Weather Cards codepen: See the Pen Animated Weather Cards by Steve Gardner (@ste-vg) on CodePen. My idea was to make a smart dashboard that would be displayed constantly at home with Raspberry PI and a

Default domain verification  on Microsoft Azure requires placing a /.well-known/microsoft-identity-associaion.json file on your web server with a specific content: The trouble is, if you deploy with CloudFlare, for example, it fails verification before even checking the content, because someone at Microsoft decided they need to verify Content-Length header

This article is based on a recent implementation of Google Auth for one of my projects. The implementation uses plain JavaScript on the frontend and FastAPI on the backend. It uses modern Google Identity Services library to handle user authentication on the frontend, as the previous library was deprecated some

OAuth is an open standard protocol used for authorization and authentication between different services, applications, and platforms. Usually, it's easy enough to implement, and the libraries are available for the major web frameworks, such as Django, Flask, React, etc. Unlike, for example, GitHub, Google requires your website to pass a

A typical hedge fund today needs to diversify its portfolio in a number of ways, one being distributing its assets geographically. That means trading instruments on major exchanges in the US, Europe and Asia-Pacific. Each exchange has its own local holidays and trading schedule, so that data needs to be

In all the hype, I also bought GPT-4 subscription, and decided to make an experiment: I will guide GPT to fully develop a production-ready system for one of my needs. The system is rather simple: * It will query Twitter API with a given search query, then store all new tweets

Starting SaaS business as a solo/bootstrap dev requires upfront investments in a bunch of tools and services, many of which have recurring costs (see list below). You have to cover all these costs before your service earns you even a single dollar, maybe for many months. This might be

This is my opinionated list of the most interesting gadgets, technologies, and experiences I would like to try from 2022.

Postcards with sand, cork and fabric, and more.

Список книг ниже - это моя личная коллекция детских книг, которые я собираю из разных источников: поиск на амазоне, рассылки издателей, рекомендации итд. Тут есть книги с увлекательными историями, красивыми иллюстрациями, pop-up книги, итд. Книги можно фильтровать по возрасту или языку с помощью фильтров AirTable.

The list of books below is my personal collection of children's book I found on the internet. They have great narratives for children, are beautifully illustrated, or both. I own most of them or plan to buy them when my children are old enough.

Places to swim around Zurich, indoor and outdoor. Information on admission fees, opening hours, and available facilities.