AUST Robotics Club & ARC Event Monorepo Engine
A unified system powering nationwide robotics championships with instant sub-domain routing
1. The Problem
AUST Robotics Club hosts multiple massive annual competitions (AUST Rover Challenge, Robomania). Previously, each edition was built from scratch in detached repositories, creating massive code duplication, broken live scoreboards, and nightmarish tournament-day emergency hotfixes.
2. Hard Engineering Constraints
- Zero-downtime scoreboards during peak multi-day tournaments with 3,000+ simultaneous viewers.
- Non-technical club organizers must be able to publish rules and schedules without touching React components.
- Strict sub-domain isolation (`rover.austrc.com` vs `robomania.austrc.com`) from a single deployed artifact.
3. System Architecture Topology
[Incoming Request]
│
[Sub-Domain Dynamic Router]
│
┌───────────────────┴───────────────────┐
▼ ▼
[editions/rover.config.ts] [editions/robomania.config.ts]
│ │
└───────────────────┬───────────────────┘
▼
[Shared packages/core-engine & UI Token Engine]
│
[Firestore Real-Time Leaderboard]
│
[ImageKit CDN Edge Cache]4. My Key Architectural Contributions
Monorepo Configuration Schema Engine
Defined a strict TypeScript schema encompassing tournament rounds, scoring rubrics, and sponsor layouts. Re-theming an entire competition became a single 40-line configuration export.
Concurrent Leaderboard Sync Architecture
Engineered Firestore listeners with client-side optimistic UI updates and batched transaction commits, withstanding concurrent jury score entries during tournament finals with zero write conflicts.
Automated Edge Image Pipeline
Configured dynamic ImageKit CDN transformations that serve contestant badges and arena photographs in modern AVIF/WebP formats, slashing bandwidth by 78%.
5. Measured Engineering Outcomes
%
Code reusability across editions (Robomania & Rover Challenge)
0 Crashes
Flawless uptime through 3 national multi-day championships
+
Lighthouse Mobile Performance across all tournament subdomains
6. Retrospective & Senior Engineering Review
Decoupling the tournament rules engine from visual presentation allowed organizers to update scores without waiting for developer deployments.
I would migrate from Firebase client listeners to server-sent events backed by a regional Postgres cluster to reduce client SDK bundle size by 35KB.
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