-
Hatch
An email scheduler that doesn’t lose mail
Schedule an email for an hour from now or years from now, with at-least-once delivery. A timer-wheel scheduler sharded across replicas drops each email onto Kafka when it falls due. Failed sends climb three retry tiers, and a reconciliation job recovers anything a crash left behind.
Go, Kafka, PostgreSQL, Redis, Kubernetes Code
-
Hermes
Live quizzes, run like a broadcast
A real-time quiz and polling platform. Organisers build quizzes and run sessions question by question; players join with a code, and the lobby, answers and results update live over WebSockets.
Spring Boot, PostgreSQL, Redis, RabbitMQ, Next.js Website Code
-
Nexia
A digital slambook for your people
Keep the details about friends and family you’d otherwise forget, like favourite songs, food quirks and old memories, then ask things like “who hates mushrooms?”. The assistant answers from your own notes, and asks before it changes anything.
Next.js, Hono, pgvector, Vercel AI SDK Website Code
-
Stochastick
Flappy Bird, played on real stock charts
Pick an NSE stock and a timeframe, and its real price history becomes the level: every candle is a pair of pipes. Crash, and it tells you the date and price that got you. Fully static, with the market data shipped alongside.
TypeScript, Canvas, Vite Website Code
-
Iris
The shortest path between two Wikipedia pages
Give it two pages, say Banana and Shah Rukh Khan, and it finds the trail of links between them. A bidirectional search meets in the middle, Redis holds the state, and the path is drawn as a graph you can drag around.
Python, Flask, Celery, Redis, D3.js Website Code
-
Jury Duty
Many hands, one dataset, no collisions
A labelling engine for teams annotating one dataset with several raters. It hands out items without collisions and stores every label in Postgres, ready for inter-rater reliability and bias analysis.
SvelteKit, Supabase, PostgreSQL Website Code
-
java2go
Go, explained in Java
A guide to Go for people who already know Java. Thirty-one sections, each starting from the Java you know, with idiomatic Go beside it and why Go made a different choice.
Go, Java Website Code
-
Sociocredz
Give away the points you’ll never spend
Donate unused loyalty points to NGOs. Built in 24 hours at Access Denied 2.0, where it won.
Node.js Code
-
Keats
A reading club in your pocket
An Android app for reading together: clubs, shared annotations, and discussions pinned to the page you’re on.
Kotlin, Android, Firebase Code