Freelance Fullstack Development
I'm Joseph Sebastian Ruiz, a fullstack developer freelancing from Los Angeles. I build Flutter mobile apps, .NET back-end APIs, and Angular and React websites. My own game, Psychic Tournament, is out now on Google Play and the App Store, and I'm now building PostQuake, a tool that turns a link to any app, website or online shop into a week of short-form posts. My newest, Chatacombs, is a battle royale you play from YouTube live chat.
A battle royale you play from YouTube live chat.
Type join and a hero with your name drops into a collapsing dungeon to fight the rest of chat until one is left. A custom-built vertical stream for the YouTube Shorts feed: I made the game, the overlay and the control room. The first public pilot goes live tonight around 7 PM Pacific.
A roguelike battle royale played from YouTube live chat, built as a vertical stream for the Shorts feed. Viewers type join and a hero with their name fights through a collapsing dungeon until one is left. A deterministic TypeScript engine in a Web Worker, a 1080×1920 canvas overlay captured by OBS, and a control room that keeps the show running unattended.
Short-form marketing for anything with a link. Paste an app's store listing or any website (a web app, online shop, newsletter or portfolio) and PostQuake researches who it's for, writes hooks in their own words, and renders a week of TikTok-style slideshows and videos for TikTok, Reels, Shorts and Facebook. Every batch is checked for repeats, AI imagery is labelled, and music is licensed.
An ESP and intuition game for Android and iOS. Three ranked games (Zener, Dowsing and Star Seed), each scored against a 20% chance baseline, with a once-a-day Daily Vision, conviction calls, global leaderboards, 400 levels and blindfold MindSight training. Built with Flutter and Supabase.
A new app is in the works. More details are coming soon. Follow the blog to hear about it first.
Chatacombs is a roguelike battle royale you play from YouTube live chat. Type join, get a hero with your name, and fight the rest of chat until one is left. I built the game, the overlay and the control room myself, and the first public pilot goes live tonight around 7 PM Pacific.
PostQuake turns a link to your app, website, online shop or newsletter into a week of TikTok-style slideshows and videos for TikTok, Reels, Shorts and Facebook. Its first customer is my own game. Early access is open now.
Psychic Tournament, my ESP and intuition game, is out now on Google Play and the App Store. Here's what's in 1.0, what I learned shipping a Flutter app to both stores, what's coming next, and a first word about my next app.