John Deliyiannis is a full-stack web developer sharing insights on Ruby on Rails, web and mobile app development, side projects, AI, background jobs, and personal experiments in software, technology, and creativity.
15 articles from this blog
How to wire AI agents and webhooks around a small startup's ops using Discord for real-time monitoring and team collaboration.
Building DCAloop, an automated Bitcoin DCA Rails app that connects to Binance for recurring buys and sells.
Explores the potential impact of AI and automation on jobs, economy, and society, discussing both optimistic and pessimistic future scenarios.
Explains challenges and best practices for handling Sidekiq background job restarts during Rails application deployments.
Explains the subtle but important difference between using combined and separate where.not clauses in Ruby on Rails ActiveRecord queries.
A developer shares their experience building AstroMobile, a cross-platform astronomy quiz game using React-Native and WebView.
A developer shares two summer side projects: an academic paper digest app and a movie selection tool for groups, built to solve personal problems.
A review of 2022 predictions covering economy, crypto, remote work, and tech trends, with analysis of hits and misses.
An analysis of ChatGPT's strengths and weaknesses in technical and non-technical tasks, including its potential impact on programmers.
Analysis of two strange bugs: invisible characters in strings and a default_scope causing foreign key violations.
Ruby tutorial on resizing and combining images using MiniMagick to create Instagram-sized photos with custom backgrounds.
A Ruby guide for automating Reddit API access using OAuth authentication to scrape subreddit stories.
An overview of mobile app architecture, including API endpoints, error handling, authentication, and dynamic styling for React Native apps.
Comparison of Redis hosting options for background jobs on Heroku, AWS, and Render.com, focusing on cost and scalability.
A software developer discusses criteria and challenges for fixed-price web development projects.
