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Open Source

Projects I’ve designed, built, and shipped. Each one solves a real problem and runs in production.

Real-time 1v1 competitive coding game. Authoritative WebSocket battles, per-war Elo ranking, programmable bots, and a challenge bank spanning nine programming topics. Full case study →

StackGo, Next.js 15, TypeScript, PostgreSQL, Redis, WebSocket
HighlightsAuthoritative real-time state, lock-free matchmaking with bot fallback, per-war Elo, bot AI with Elo scaling, i18n (PT/ES), Docker on AWS
Repogithub.com/dionisioedu/code-royale
Livecoderoyale.site

Random picker wheel with 10+ tools — name picker, yes/no, dice, teams, and more. Zero dependencies, instant load.

StackVanilla JS, CSS, HTML5 Canvas, GitHub Pages
Highlights37 pages, AdSense optimized, 10 tools + 8 templates + 15 blog posts
Repogithub.com/dionisioedu/wheelofnames
Livewheeloflist.com

Content site on relationship psychology. Static HTML generated from Python templates. AdSense monetized.

StackPython (content generation), Static HTML, GitHub Pages
HighlightsSEO-optimized, bilingual-ready architecture, automated content pipeline
Repogithub.com/dionisioedu/amorfy
Liveamorfy.com.br

The site you’re on right now. Bilingual, dark by default, no trackers.

StackAstro, Starlight, Markdown/MDX, GitHub Pages
HighlightsRSS, JSON-LD, bilingual (EN/PT), engineer aesthetic
Repogithub.com/dionisioedu/dionisioedu.github.io

All projects are MIT licensed unless noted otherwise. Contributions welcome.